Randy Kath: It is 1130 so we'll go ahead and get started, our first presentation today will be by Michael trippy Michael will be presenting a new cross section in the central.
Randy Kath: appalachian central Alabama illustrating the regional and structural and strata graphic framework in the valley and Ridge province in southern appalachian basin so very excited to see this poster and i'll go ahead and see if I can get it.
Presenting.
Randy Kath: If you can just give me a thumbs up or raise your hand, let me know that you're seeing the poster okay.
mtrippi: yeah, we can see it.
Randy Kath: Okay, great so let me go ahead and play this is way too heavy for us, yes, the beginning thanks for coming to my poster.
Randy Kath: And this point, please expand the videos so it fills you screwed So you can see all of my sites, thank you.
Randy Kath: The title of the poster is blue cross section in central Alabama illustrating the regional structure and span rapid framework of the valium range province in the southern appalachian face.
Randy Kath: there's a map showing some previously published cross sections by the usgs to the appalachian basin and worked on five star sections, the red line you see in Alabama is the location of the current cross section and black lines are the locations of some other cross section we both work.
Randy Kath: there's a close up of those same cross section.
Randy Kath: And this is a close up of the crime cross section which starts on the South, was to the county and it passes to hale county Perry county and and in it.
mtrippi: I think it's muted can't hear it anymore.
he's.
Randy Kath: able to hear his voice to the map and the other colors.
mtrippi: Now we can you.
Randy Kath: heard of the map, or the paleozoic rocks.
Randy Kath: And here is a strat column with the cretaceous and return rock and then carboniferous developments learning rocks including upper development and shadow the Shell, which is a potential source of shale gas.
Randy Kath: And the early admission and camry interaction cool kind of saga formations use unknown source of shale gas, the lower two units and the cambrian and chill how he and shamed or might may or may not exist in this process.
Randy Kath: Now here are the wells that we're using the Cross section six of these wells were previously news in a bb prime cross section of passion 2011 is our SP a report and those really athletic coach the baby etheridge.
Randy Kath: And the to go stays paper company wells, and we added two other wells intake and university of Alabama well.
Randy Kath: As the actual cross section shattering pretty good vertical exaggeration one foot sorry one inch vertically is 1000 feet.
Randy Kath: And one inch horizontally is three miles so it's about what the 15 vertical exaggeration, as you can see the faces on left slopes off to the left.
Randy Kath: And the blue areas underneath it are thrust sheets the bottom one is the one spreadsheet and the top one is Back to School Fresh sheet, which is display off in the corner.
Randy Kath: they're both moving away from us into the page to the Northwest we just cut off the nose in them that's why you see a small or.
Randy Kath: they're both thrust on top of the pottsville formation, which, on the right side, you can see, contains a number of different cool beds in the cahaba call.
Randy Kath: In the middle part of the cross section, you see the devonian chattanooga and other shales which are potential source of shale gas.
Randy Kath: At the bottom, we are blog faulting in the healing sorry precambrian basement rocks lower block fall on the right and the steps going down to the lower level in the middle, are the.
Randy Kath: Birmingham grounded and the Birmingham grab it is filled with no information and above that kind of side of formation and in certain places, you see a kind of sorta formation founded at the top and bottom by thrust falls.
Randy Kath: area in between the best summer much law, which is highly contorted shells finally on the far left there are three ramp thrust faults and those are the ones, described by passion in 2011 and Robinson in 2012.
Randy Kath: And i'm just about out of time now, so thank you for watching the slides and hope you enjoy the day bye bye.
Randy Kath: Okay sorry about muting you Michael there at the beginning.
mtrippi: No problem.
Randy Kath: yeah I didn't realize, I was trying to mute myself to be quiet and it muted, the whole thing, so I apologize.
mtrippi: Okay.
Randy Kath: So um does anybody have any questions trying to see where my chat window is.
mtrippi: Before before anybody has any questions, I just want to apologize for the pixelated images on the actual poster.
mtrippi: I was thinking, this was the.
mtrippi: The preview mode someone told me, this would be the preview mode and then the actual PDF would be available to look at, but no Apparently, this is the only image that's available which.
mtrippi: it's a PNG that they created from the PDF that I sent them.
mtrippi: You could see the PDF it would really look great.
Randy Kath: Well, and Michael I think that the slide presentations you know look like very good quality.
mtrippi: yeah those are better So if you look at the slides and freeze them, you know you can look a little bit closer and see.
mtrippi: See the detail, but unfortunately the actual poster here is pretty pixelated.
Randy Kath: Well we'll have to discuss with GSA and see you know when they archive these if we can update the p amp g to P PDF a higher higher level higher Greg.
mtrippi: yeah Jennifer no Sir, you know, told me that they would probably do that.
Randy Kath: yeah yeah Jennifer is pretty easy to work with and.
Randy Kath: I am, I am not seeing my chat window, so I don't know if there's any.
mtrippi: You know i've got a here let's see.
mtrippi: i'm not seeing any questions from anyone.
mtrippi: There is a statement there from Andy about his presentation.
Randy Kath: That I just found my chat and I got the last audios here.
mtrippi: yeah.
Randy Kath: So, so any questions we have a few minutes i've got a question for you.
Okay.
Randy Kath: there's been a lot of exploration and the appalachian basin and Alabama and Georgia.
Randy Kath: And a lot of the shale gas you they're looking at the condo saga and chat, of course.
sure.
Randy Kath: And I was just curious in these in these robbins that you're showing and we've got you know thick Roman and kind of saga in there.
Randy Kath: I was just curious if you're able to pick up the House because there's been a lot of.
Randy Kath: there's a couple special trips.
mtrippi: So i've been discussing that with.
mtrippi: Jim Coleman and.
mtrippi: bill Thomas and.
mtrippi: Especially Jim Coleman had some maps that he created a 20 years ago, when he was working with I I believe its shell, and they were drilling in the.
mtrippi: In the canoe Valley.
mtrippi: basin, which is a it's North East of here, but that that was the first place where they started drilling into the the Marsh watch for for gas, and so, at that time he created this map showing the thickness of the shady dolomite.
mtrippi: On top of that show how he and.
mtrippi: It pretty much Peters out by the time you get.
mtrippi: Really any distance to the Northwest, and so I don't think it's really present in this area.
mtrippi: But it's hard to know, because we don't have any wells in penetrate that deep and.
mtrippi: If if it's there at all it's very, very sin, you know.
Okay.
Randy Kath: I was just curious because, as you go up to the Northeast right on Alabama Georgia line up in the mountain areas, the tool, how it gets pretty thick in there.
mtrippi: It does yeah and and so, so does the shady and that's what Jim coleman's map code, but.
mtrippi: Unfortunately, his map didn't go down into big county, but if you extend the the zero sickness contour into big eight it goes to the east of this cross section so.
Randy Kath: Okay.
mtrippi: So that's My guess but.
mtrippi: I can't tell unless you.
mtrippi: Actually.
Randy Kath: You know right.
mtrippi: There and phoned it, you know.
Randy Kath: Oh, Michael thanks for that, though in the move on to the next poster.
Randy Kath: And next poster.
Randy Kath: Is a.
by Bart.
Randy Kath: Can snatch and Nicholas.
Randy Kath: boss dog Sierra is art and Richard wooten, and this is the new one to 24,000 scale bedrock geologic map of the old for seven and a half minute quadrangle McDowell and Nancy counties North Carolina.
Randy Kath: let's see if we can get that one up and playing.
Randy Kath: Okay, and I believe seer is going to be presenting.
Randy Kath: hi my name is yeah I don't I was in North Carolina geological survey, thank you for attending my presentation i'm doing logic mapping in the old work logical.
Randy Kath: you'd like to view or download the official of about report, you can visit our website or contact the others.
Randy Kath: But all of our quiet is looking in western North Carolina about 25 miles east of astral, which is one of the main reasons we chose as quiet.
Randy Kath: As a desirable place to live and the surrounding areas are quickly developing the quietest awesome affected by the blue Ridge escarpment which separates the lower elevation.
Randy Kath: From the higher elevation blue Ridge, which is there's a tendency for this is the area another one of the main reasons we chose this one.
Randy Kath: Was situated in the Tutoring which is largely made up of medicine and volcanic rocks deposit of bread to continental oceanic crust.
Randy Kath: bedrock of the magical could use the following units and undivided neoproterozoic been sedentary unit this inner layer within subway in Quebec shifts and your proteins of medicine, so of course for classified as a nice a nice Nice and violent violent awesome.
Randy Kath: But my Pilates or the orange unit on the map and the bird provide fault is a prominent linear ne se striking feature extending from Alabama to Virginia.
Randy Kath: It has a pretty complex history of multiple reactivation but during both the neo key and and allegheny and ronnie's the effects of this fault seen throughout the quadrennial with decreasing liberalisation hours from the fall.
Randy Kath: So, you said that regard some isn't mixtapes unit and on the map, due to its proximity, with the braveheart all part of this identifications pretty difficult.
Randy Kath: The units largely made up of heterogeneous by a nice continuing local criminal to grab a size for for fast food and passive layers.
Randy Kath: layers and genetic ortho nice horses others by a tight Nice are probably related to the neoproterozoic to ask permission.
Randy Kath: And, or to the or division nice so to move balls formation, is a fairly heterogeneous medicine momentary it's highly moment taken this Carolina while the Henderson nice it simple tallies is a criminal court, the Nice continue lots of people in our audience that are logging in the bullies.
Randy Kath: And that sounds pretty different, but if you look at these two pictures at the bottom, you can see the similarities between all of them.
Randy Kath: And then, adding that a lot of our crops in this unit or stabling and high weather, so it can make for a bit of a head scratcher in the field.
Randy Kath: To add on top of that there's another board for classic by take place and it's in purple on the map usgs Tina preliminary hd a 360 million years old tentatively, making it making it devonian.
Randy Kath: But powerful classes in unit or similar to the mix nice but they tend to be more in mueller and less elongated affiliation plane, which I think is illustrated best by our field term asphalt Nice.
Randy Kath: In the Northwest the bottoms underlying by neoproterozoic cemetery units are probably correlated with the optionality to back.
Randy Kath: These are the Gray and yellow units on the map largely the mythologies with an undivided unit very for medicine some dishes and anything in between plus and devil like.
Randy Kath: All these mythologies were metamorphose to like a she's conditions during the two car garage me.
Randy Kath: If you look at the slack mineral locations, that the medicine some unit was largely delineated from the rest of the medicine is because it uniquely does not contain garnishes or the light and we're thinking, this represents a shift deposition environment.
Randy Kath: If you look at the Cross section, you can see that we are unsure of the contact relationship between the undivided better settlements.
Randy Kath: And the medicine stone in the Northwest and some of those uncertainties stems from our debate on what constitutes ash for alligator back.
Randy Kath: we're also ensure the exact nature between the medicine, so in the corporate classified as a nice, but we did see some evidence of extra strength of motion to provide fault it's the mix nice unit over the poor for classic it nice, but that should have leixlip motion.
Randy Kath: Looking at the stereo and, as you can see that the mile a minute and Nonviolent medical issues within the quad Dolly straight north east, south west and did to the southeast.
Randy Kath: The private practice that shakes my se and it's deeply debate, but there are a lot of minor factor sense as well, thank you for listening to my presentation and i'll do my best to answer any questions that you might have.
Randy Kath: Alright, well, thank you, Sarah sorry about that michaels presentation, I had to maximize it, you can see the slides and on sierra's but I had to back minimize it thanks for the comments in the chat window.
Sierra Isard: yeah don't worry about it okay.
Randy Kath: yeah it looks like each one is going to be slightly different.
Randy Kath: Does anybody have any questions for Sierra.
Randy Kath: If you do feel free to admit I have a question for us here.
Sierra Isard: Sure go ahead.
Randy Kath: So you're provided fault zone, and we had a field trip.
Randy Kath: When we had a field trip, I think it was Wednesday on Milan, is for mark skelton Paul.
Randy Kath: Okay we're looking at the bard.
Randy Kath: And had some very good discussions, and you know you're talking about quite a bit of movement nia katie and movement and allegheny and movement.
Randy Kath: And one of the things we see down here associated with Milo nights and this year fabrics are the bird is there isn't a lot of movement.
Randy Kath: We can we can track the fully ation right across fold noses in the fold noses aren't dissected and attenuated so i'm just curious what type of indicators, you have for movement net slip, if you will, on the barn.
Sierra Isard: um well you know a lot of that is from prior a I guess research into it, not something that we have done, specifically, but if you look at the revered faults own in some of these quads you know, there are a lot of elongated portal class and.
Sierra Isard: Like Buddha and magnetite.
Sierra Isard: um, but I would say.
Sierra Isard: I don't know how to answer your question I don't have anything I don't have a good answer for it to be honest.
Sierra Isard: You know, we haven't done a lot of research into that and trying to figure out how much movement that we have personally seen and it's something that could be included in future work.
Randy Kath: yeah well as many of you know, the bird is problematic.
Randy Kath: We see the same thing in our backyard here in Georgia beautiful poor for classic mortal tales pervasive sheer fabric cuts everything we have catecholamines lights, we have mile nights.
Randy Kath: But it looks like displacement is very small, on the bar so I was just curious when I heard you talking about multiple movement on that regard I was just curious how your quantifying that means movement.
Sierra Isard: I would say i'm not personally quantify.
Randy Kath: yeah very good.
Randy Kath: Any other questions for Sierra.
mark carter: Sierra was more how wide is there.
Sierra Isard: Oh it's pretty wide like the fabrics we see an old four is almost essentially the entire quad.
mark carter: you're seeing you're seeing kinematic indicators rotated port for blast.
Sierra Isard: We are yeah.
mark carter: across the entire width of the quarter and.
Sierra Isard: Not the entire width but a good portion of it, I can't tell you the exact mileage right now but it's something that I could figure out for you, if you.
mark carter: really wanted to know where we talk later.
Okay.
mark carter: Good luck in math very good looking at.
Randy Kath: yeah very nice presentations here thanks.
Randy Kath: Okay well wait just another minute if there aren't any other questions.
Randy Kath: Just to make sure we keep on schedule here.
Randy Kath: and hopefully i'll get this one right maybe the third one's a charm.
Randy Kath: Okay, so our next presentation.
Randy Kath: Part Kevin Nash, and Nicholas.
Randy Kath: I don't matter of design.
Sierra Isard: Doc.
Randy Kath: files dog I should have that Thank you.
Randy Kath: and Sierra is art and.
Randy Kath: Bart will be presenting, and this is a new one to 24,000 scale bedrock geologic map of the northern half the Moffat hill seven have been a quadrangle, and this is an McDonald rutherford and boom comb county North Carolina and Bart will be presenting.
Randy Kath: And let's see if we can go read my name is mark cat now, along with my co authors.
Randy Kath: Here either North Carolina geological survey, like to thank you for taking time out of your station, and I do try to map of the market, your quadrangle McDowell back and refer counties.
Randy Kath: To quick notes, first the poster covers the entire module quarter, not just the northern portion, as indicated in the title, since we finished quadrangle.
Randy Kath: seconds what we're showing in the poster is not complete open about math because of the limitations of what we can do the digital medium format.
Randy Kath: elements, such as the detail right descriptions geochemistry in July we'll review, you can request a free digital copy of the entire map i've gotten.
Randy Kath: Any of the authors for by downloading from the north Carolina jewelers survey website, I also want to mention upfront that this map is partially funded by the US either statement Walker she was matt program we're thankful for their continued support.
Randy Kath: Whereas the quadrangle Moffat hill is located in western North Carolina just east of asheville along the blue just started.
Randy Kath: Its location shown by the Red box and the train man, as many of you probably know, escarpment is transition zone between the mountains and Piedmont busy graph provinces.
Randy Kath: High elevation of the quadrangle is 3604 feet and low elevation is 1057 feet, so we have the total relief of 2540 70 and it can be a really good place to work times.
Randy Kath: Why did we choose this quadrangle map, although the quartering was predominantly rural it is located in close proximity to asheville and light blue are.
Randy Kath: There lots of secondary vacation homes being built in the area, including several very large developments issues are particularly important.
Randy Kath: Water resources, since all infrastructure years served by private wealth and other major problems landslides, especially debrief low to the high relief terrain see a couple of photos there.
Randy Kath: and other issues, the presence of elevated levels of rate on air and grab a water and a frenetic bodies of the area we're hoping that the new data generator aromatic.
Randy Kath: and assist with some of these issues geologically the quality is contained entirely within the two blue drain of laurentian infinity.
Randy Kath: provides them the sliver of Orange shown on the map bisects to do the train across the northern part of the quad.
Randy Kath: Like sub quadrant goes along strike, we did not identify any regard sounds cynical apologies that regards out here seems to be just a moment to strengthen over branding ash loose balls or mention units.
Randy Kath: That being said, that separate to be organized said, although similar interference to one another locally, have very different radio mentor gauges.
Randy Kath: So what did we what you instantly find or define on the path from Northwest southeast on the cross section line we identified six units, the first is new Yorkers are cambrian aged ashman work.
Randy Kath: and show and yellow here's a quick example medicine so.
Randy Kath: Next, we have a port requested by type organized unit that intrudes and his inner layered with other astronauts apologies, including medicine sounds just as good lights.
Randy Kath: The unit is a purplish blue cover on the map and organized opponent has an approximate 368 year old age, bring to Ryan mcaleer of usgs.
Randy Kath: we're very thankful to Ryan Arthur and mark Carter of the usgs for that age dates the unit is proud about it come on the most areas be to provide some information.
Randy Kath: Moving to the southeast along the Cross section line with cross into a mix nice unit shown in dark pink that includes 450 year old interest nice it's your layered with to the false biotech nicest.
Randy Kath: nicest and civilized so it's a mixed bag moving to the southeast we enter larger bodies of Henderson is shown in salmon cover and we also see 438 million year old.
Randy Kath: clinic organized you know I paint color filing in southeast corner, we have a light yellow covered or division format information sandstone and a good light unit didn't trust contact with the underlying ortho paradises you can see the progression here the Cross section.
Randy Kath: The cross section through and show that police quadrangle dominant restraint or the southwest and gives deeply devoted to the southeast.
Randy Kath: You can see general Shell and creative affiliation, as you travel se across departments, they documented elsewhere on strike.
Randy Kath: The product attractor set strikes Northwest southeast and a steeple debbie all of these rocks of underground and people like basis and what visible some experiencing partial melting as expected rocks into the zone also locally experience creatures bases retrogression.
Randy Kath: The hopefully this interesting gave you the flavor of the quadrangle and happy to help answer any questions you may have.
Randy Kath: Okay, thank you very much, very nice presentation, do we have any questions for BERT.
Bart Cattanach: ready.
Bart Cattanach: Okay, go ahead mark.
mark carter: i'm sorry, no, no, you go ahead, please, I talked boarding time or i'll finish right.
Bart Cattanach: Now I was gonna thank Randy really quickly and then also it's going to address one of his questions.
Bart Cattanach: To Sierra as well as one of your questions mark with the thickness can I share my screen is that allowed.
Randy Kath: US yeah should be able to let me stop mind and see if you can click your share screen now.
Bart Cattanach: If I can share.
Bart Cattanach: The one at once, see if you can.
Bart Cattanach: Can you see a very large.
Bart Cattanach: yeah so the Moffat hill quadrangle is this guy right here, and you can see the reward zone as we haven't mapped here that the orange or the the magnetic.
Bart Cattanach: These are actual mile and i'd say mom and I units and that, for us as a cop out when we can't determine we don't feel like we can determine the production on these things.
Bart Cattanach: So, as far as.
Bart Cattanach: You know I wouldn't put any kind of distance on shearing but I will say that the provided so here truncate CC this sandstone unit coming down some of the other asheville theologies.
Bart Cattanach: We do feel like they're strong out and truncated in this area, and then, of course, on the other side, you do have.
Bart Cattanach: Like the Henderson nice mythologies which is not they're not present northeast to provide zone, so I think there is some amount of movement.
Bart Cattanach: But I don't know how great it is and and mark for the thickness of the regard zone manifestation or defamation, we were feeling, you know down here in.
Bart Cattanach: ot and bike mountain, it was only about a kilometer when you're sort of northeast of the central mom and I found was only about a kilometer that you would see the defamation, but it seemed to be much more widespread.
Bart Cattanach: On the south eastern side, and as we move up into some of our other mapping, this is old board, this is what Sierra was discussing.
Bart Cattanach: The defamation becomes more widespread, and of course the grandfather mountain window starts here and.
Bart Cattanach: I think we may be seeing similar timing, but a couple of you know, maybe a display off the bard or a totally different fault but we're seeing a lot more of those magnetic and high sheer volume in here, and it does narrow down in this area.
mark carter: yeah you're gonna have to bring that fault south of the window right there good splay out kind of winding up in that one area, but ultimately it's got to be at the beach in the southeast side of the window.
mark carter: To the north right what's the name of the fault.
mark carter: that separates your format for site from from your Henderson and your other Eastern blue Ridge are.
Bart Cattanach: Those yeah so i'm wondering, I think that might be part of the sugar low at that point.
Bart Cattanach: i'll have to go back and see there's we don't have any of the Nice, you know there's actually sugarloaf Nice that you can see, below that on a few, if you remember that one or not came out of Davis and yoga hora they're mapping around the Columbus problem story.
Bart Cattanach: And so I think that would be the sugar low.
Bart Cattanach: But.
Bart Cattanach: i'll get back to you.
mark carter: and your graphite is in your is in zone between the two faults there.
Bart Cattanach: Yes, and that's actually another point, so we do find regards on mythologies in here, which include especially further down i'm not going to try to to.
Bart Cattanach: Pan it now, but big large graphite is volunteer and those disappear on these this area, but we do see graphite in Griffith units.
Bart Cattanach: up in this off what you know, is this display or what's going is just purely a lift the logic difference, so the graphite seem to go North year and doesn't follow along selfies of the grandfather window.
mark carter: Right thanks.
Randy Kath: A great discussion there and.
Randy Kath: Okay, so if you can and share your screen Bart will carry on.
Bart Cattanach: I will try and soon as I can.
Bart Cattanach: yeah.
Yes.
Randy Kath: perfect.
Randy Kath: Okay, I see where I am so let me share my screen back.
Randy Kath: And we'll get back.
Randy Kath: 12 o'clock Charles Michael and kyle galinsky pleistocene geology of the northwestern heart and Eastern Marion county South Carolina or horry.
Randy Kath: Andy Is this the one that you were going to share your screen.
mtrippi: that's fine you don't want to give them that again.
mtrippi: i'm.
Andy: know, though, that isn't the one I was going to share, but I can share my screen, if you would like me to you.
Randy Kath: Okay, so this there's this one doesn't have a video with it.
Andy: No i'm just gonna wing it live.
Okay.
mtrippi: Let me get back his poster that's my poster so.
Randy Kath: yeah yeah so let me switch supine get your poster back sorry.
Randy Kath: We don't want to join i'm already there.
Randy Kath: Okay let's get back to where we were.
Randy Kath: heather I don't know if you're still here, I may have lost the meeting.
Randy Kath: blessed to have everyone with us.
RISE GSA Staff Heather Clark: i'm still here.
mtrippi: yeah here you.
Randy Kath: appear to have lost the meeting.
Randy Kath: it's just I can get back.
Randy Kath: To the 12 o'clock.
Randy Kath: Okay, you seen that poster now.
Randy Kath: Yes, okay sandy.
Randy Kath: sorry about that will give you a couple extra minutes at the end there.
Andy: yeah no worries, my goodness start.
Randy Kath: Yes, you're good to go.
Andy: Okay awesome well i'm my name is Charles like Dell, but I go by amy sorry for the confusion and I worked at the South Carolina geological survey, and today I will be presenting.
Andy: was made by myself and called the wind speed and titled places in geology of northwestern ori and Eastern Marion county South Carolina.
Andy: The math area is in the Atlantic coastal plain, specifically the lower coastal plain of northwestern worry and Eastern Marion counties.
Andy: For quadrangles dunford Nichols Galvin sperry and baber were map to the 7.5 minute one to 24,000 scale 126 four holes were drilled and log to cover a total depth of 6779 feet, with an average little depth of 53 point.
Andy: Once field work was complete the magical made with the help of lidar and aerial photography and our GIs and finalized in adobe illustrator.
Andy: At the surface three places in our formations were identified a nap which were the waikato Allah formation, with an age around 1.2 million years old.
Andy: depend Holloway all information with an age of around 100,000 years old and the lads and information within a around 450,000 years old.
Andy: We were also able to identify force louisville terraces at the surface or crane and each in each quadrangle designated as terrorists 123 and four was for being the oldest deposits in one being the youngest departments.
Andy: Each younger terrorist is separated from the older terrorists by a subtle but malleable sharp decrease in elevation a scar.
Andy: Normally the luteal terraces would be grouped with their associated information, but as of now, the kind of strata graphic relationship to be our formations is unknown.
Andy: As can be seen from the maps the places seem deposits are significantly modified at the surface from ordinary features such as Carolina bs and 60 sanatoriums a only in sand creeps swaps, and of course anthropogenic influence.
Andy: In the subsurface several marine units in Bolivia unit were identified the flu Bo unit is unnamed inconsistent pliocene to place a simpler you'll sand.
Andy: And unnamed locked into the clay occurs throughout the map area and based on upper and lower services is either pliocene to pleistocene and age.
Andy: The drupal information in the goose creek formation were identified as Court says show has stains and, of course, the quotations PD formation was also identified.
Andy: The main story of the of this map of the mapping in this poster is the complex luteal history of the area, as can be seen from the Cross sections.
Andy: Paleo channels heavily alter the subsurface expression of the PD formation these Paleo channels are commonly infill in filled with the goose creek and duplicate formations.
Andy: The topographic loose created by these pillars channels likely protected these units meridian by later transgressions.
Andy: Also supplies into place to St Louis will sand can be seen instilling Paleo channels cut into both the goose creek and the Dupont formations.
Andy: In all likelihood, this subsurface bluegill yet is probably similar similar to the full reveal terraces circus in represents many different time periods, but more work.
Andy: And dating techniques are are required to prove that another important topic is another important topic of discussion is elevations with the y comma your screen deposits.
Andy: Our formations are commonly identified using spark to elevations a scarf Joe is the location where younger sentiments about order so sediments.
Andy: At the scarf to s3 and deposits of the younger deposit mark the meantime tied elevation of the younger transgression.
Andy: And previous work has identified tamika s3 and deposits doing it 90 feet of elevation However, these maps with identified my comic or s3 deposits elevations greater than 100 seat.
Andy: While this discrepancy is problematic for correlation the map area is more proximal to the Cape fear arts and previously, not more common code surfaces.
Andy: Higher why komodo s3 and elevations could be a result of Cape fear arch uplift and the construction of regional cross sections structure bumper maps and ice packs good produced on addressing the problem in long standing questions about cake, there are jumping.
Andy: And that includes my talk.
Randy Kath: Alright, well, thank you Andy and for our discussion I can zoom in on a particular portion of the map if you'd like to.
Andy: Okay yeah that'd be great i'm.
Randy Kath: Just tell me where you want to zoom and I think I can zoom in for you.
Andy: Okay sounds good, I just did anybody have any questions for zoom in right now.
Andy: i'm Sorry, I guess, we can zoom in on the third cross section.
Andy: Specifically in this cross section, we can see.
Andy: The Paleo channels heavily alter that bottom unit there at the Cross section is the cretaceous PD formation and, as we can see it's heavily altered by Paleo channels.
Andy: The Orange unit sitting right above, it is the goose creek formation and adjacent to that the purple unit is.
Andy: Go to the right sorry this one is the duplicate formation, so these pillow channels are commonly in filled with pliocene Court says show has sands and then above this carving into these two units is our unnamed pliocene to pleistocene full review unit.
Andy: um but yeah that's pretty much all I have.
Randy Kath: Great hey.
Randy Kath: I realized that I can zoom in so if anyone else needs me to zoom on the presentation just let me know, and I can zoom in for you.
Randy Kath: Okay, any other questions comments.
Randy Kath: I have one quick comment Andy is the what is the vertical exaggeration on these cross sections.
Andy: Vertical exaggeration on these cross sections is 100 to one.
Randy Kath: OK, so the quite a bit yeah.
Randy Kath: All right.
Andy: A lot yeah.
Randy Kath: Any other questions.
Randy Kath: We can wait, just a few more minutes here and any questions from the previous presentation we got a couple minutes we could kill if anyone wants to pass continue on talking with Bart about any comments.
Beth McClellan: I had one for Bart he's still here.
Beth McClellan: Okay, this is just a real, specific question about the ash alligator back, I think you, you have that as neoproterozoic Is that correct.
Beth McClellan: Yes, okay yep which is fine with me, I was just wondering, because I know, in the past, it had been interpreted as paleozoic, and so I was wondering what the latest age constraints that we have on this.
Bart Cattanach: You know, for our our neck of the woods, we don't have any new age constraints, we do I i'd be happy to take it into paleozoic we can't take it, you know I think you couldn't take it very far into the automation but.
Bart Cattanach: We don't have any.
Bart Cattanach: Just because of the metamorphosis that we feel has affected the ash, but I don't have any specific dates, unfortunately.
Bart Cattanach: You know now mark I don't know if mark still on here or not, but they've been working up in Virginia and they've got it in a little different strata graphic section i'm going to be quiet and I could talk forever, but.
Randy Kath: Maybe at the end, we could open that back up but we'll move on to the next presentation.
Randy Kath: geology seismic hazards of lauderdale and Tipton county Tennessee Valerie Harrison and Roy and heirs of an error stale and Chris Kramer and Valerie will be presenting.
Randy Kath: Good morning, everyone, my name is Valerie Harrison, and I will be presenting the 3D geology and seismic hazards of lauderdale and counties in Tennessee the study was conducted at the University of memphis department of Sciences, as well as the Center for earthquake research and information.
Randy Kath: As a part of an ongoing seismic and liquefaction hazard mapping project funded by the US Department of housing and urban development under a disaster resilience competition grants.
Randy Kath: Details surface and subsurface geology of five Western Tennessee counties have a map, it represents the results for lauderdale and cities counties.
Randy Kath: county 3D geologic models are constructed to it says earthquake Graham motion and liquefaction potential.
Randy Kath: For whole water well sounds good reflection data, and so they were compiled for these counties, the resulting data says provide thickness and elevation of the top of the ECM Jackson formation.
Randy Kath: You seem that the sandwich is the regional offer cretaceous out creek formation and elevation of paleozoic.
Randy Kath: For each stratigraphy formation and unfolded and faulted structure contour map is made.
Randy Kath: The archive data provide important information for the assessment of ground motion in the event of a large magnitude proximal earthquake, the 3D model also revealed windows through the Jackson formation may expose the underlying nervous and Rachel October to serve.
Randy Kath: You think elevation information from 10 meter by send me your light RDS the near service geology was classified into three categories Lola.
Randy Kath: Lola and intermediate contact elevation varies by county and these figures loads of water building was equal to 81 years until.
Randy Kath: they're able to eight.
Randy Kath: intermediate upon contract is constant element in 70.
Randy Kath: The family patchy and humbled river terraces were added based on soft gaze 1987 years maps are classified as an intermediate terrorists have some of this project, their respective elevation saturday's attitude process.
Randy Kath: Is your eyes cross sections do not represent any one place on their respective maps created using average thickness and elevation values related throughout.
Randy Kath: For each stronger advocated of interest both unbolted altered structure puncher amazing water well with my exploration more whole and size like reflection data.
Randy Kath: That you see Jackson formation is sheldon read the sand in production cretaceous out breathe in breathe and aliens out of knoxville and.
Randy Kath: The unwanted services, along with data distribution for each formation or showing them the four fingers on.
Randy Kath: The services are they using the natural neighbor contouring algorithm created this service.
Randy Kath: Services sharp fingers on the right for creative using this wine with barriers contouring.
Randy Kath: This technique considers all of these counties, with the resulting surfaces showing displacement.
Randy Kath: overlay of the Jackson formation service upon the sand within our 3D model we build windows through the Jackson formation that expose the underlying in the sand in several places.
Randy Kath: One of the larger windows measuring at a link up to 10 kilometers of the memphis and is a regional officer researchers wanted to verify map for wisdoms that may allow infiltration of service.
Randy Kath: Using art seeing a 3D visualization of the strategy rapid sequence to water down was created and a vertical exaggeration to keep supplying to create the model, the raster of these balls in service, as well as the 10 meters by 10 meters.
Randy Kath: For each converted to try and do it in your regular network so.
Randy Kath: How many polygons for the unexpected services to create three blocks of.
Randy Kath: The service geology maps for that service elevation draped over the.
Randy Kath: falls for extruded between the top of the EC alien G walk through the bottom of the changes.
Randy Kath: These images show the 3D model into perspective or west and south and north right we're looking for west to.
Randy Kath: The completion of the geological model seismic hazard naturally generated he's managed to probabilistic hundred packs with the ground motions shall have a 5% 50 you're probably be seeing.
Randy Kath: These maps cover two periods, point two seconds and one second one, second one, second round motion maps relate to because or the one that you story and 10 story, though, in respect to.
Randy Kath: The background other campus and current usgs how's your maps used in building codes and having uniform geology which is not present in Washington DC.
Randy Kath: Has the housing and urban development project perhaps considerable geology there is a notable difference, the results of the habitat Spain during the study compared to the rest yes.
Randy Kath: I sure periods China Point two seconds mouth effective local geology is to reduce ground shaking hands about 70% of long periods shoving the one side.
Randy Kath: effect of local geology is to increase ground shaking has in fact 52% however liquefaction hazard in the woodlands as high emotion short period shaky.
Randy Kath: Thank you all and that concludes my presentation.
Randy Kath: hazards of water.
Randy Kath: Thank you Valerie does anyone have any questions for Valerie.
Randy Kath: No questions at all.
Valarie Harrison: I thought for sure, with all the usgs folks here that i'd get some questions about the hazard maps.
Randy Kath: yeah so.
Randy Kath: I just I just think it's fascinating personally what we're doing you know part of this session is to look at mapping techniques and doing 3D.
Randy Kath: Because I personally think that we're we have the technology now where we don't have to do two dimensional sheets of paper anymore for geologic maps and seismic hazards, but we have the capability for three dimensional so it's a great technique that you're applying here.
Valarie Harrison: yeah it's been really interesting i'm a master student at the University of memphis and i've been working on this project for about a year.
Valarie Harrison: And it's been a great experience learning how to make these 3D models and i'd like to learn some new software to to see you know to compare right now i'm using Arc map and art scene.
Valarie Harrison: But if anybody has any suggestions of other 3D modeling software that'd be great.
Randy Kath: Well, I know, for all the students who are probably what looking at the presentations here, you know structure contour maps are so critical.
Randy Kath: I don't use art map I use autodesk products civil 3D and surfer is really nice I don't know if you've used surfer at all so we're doing surfaces and that's kind of what I work with those two products.
Valarie Harrison: yeah i've used surfer and i've played around with with the Q GIs but i'm looking for some stuff to do 3D modeling and particularly.
Valarie Harrison: The cross section, you know a good cross section software.
Randy Kath: yeah I know there are a couple of pieces of software out there, I think leap frog is one of them.
Randy Kath: And vulcan is another one, but leap frog is more geologic I think vulcan is more designed for the mining industry, but both of those work pretty well i've worked with some clients who have worked with both of those products and they seem to like them.
Randy Kath: Okay.
yeah Thank you.
Randy Kath: Okay, any other questions for Valerie.
Randy Kath: Wait just another minute and then we'll get beth going at it.
Randy Kath: Okay, I think we can go ahead and move forward our next presentation volcanoes to glaciers that's quite a range neoproterozoic riff basins in a paleozoic origin Southwest Virginia.
Randy Kath: Elizabeth mckay mcclellan and Tyler Rhea and beth will be presenting today.
Randy Kath: hi and then along with mosquito Tyler Ray from Radford University in Radford Virginia, they need a greater so like snowball aren't glaciations constituted the most insurance facial period.
Randy Kath: And it was frozen from the polls to the equator the most extensive record of neoproterozoic glaciation in the eastern us it sounded a blue ranger Southwest Virginia in the car foundation.
Randy Kath: The kind of rock has been sitting to represent so baller deposits, but that assumption has been made a little knowledge of the actual beach.
Randy Kath: kind of deposits Sharon ruin the map over live by moving won't kick rocks are the largest formation sharing shades of pink and red on the map.
Randy Kath: Which form you're an initial recording of the supercontinent of redeeming the glacial strata include with new layer but stone though resembles are deposits and contains drop stones, as well as NASA dynamic type or glacial chill pockets.
Randy Kath: In this presentation we'd like to explore for particular questions about the contract and it's possible relationships to have our.
Randy Kath: First, has the kind of rock into the chronology of we have brothers, or it goes us to major glaciations disturbance search certain and there are no one if I instead of all earth and the cryo June period of the year, so it.
Randy Kath: Until recently, the age of the Rock was only thing standing by the underlying all candidates and the overlying he macklin to camera and show how it.
Randy Kath: In the senior from a recent paper by Paul hawken one of the world's experts and snowball earth to kind of rock is depicted foreign journalists 30 relations theory.
Randy Kath: Although the con rock sedimentary deposits can't be directly dated and that remains in bracket are the underlying right, so the Mount Rogers.
Randy Kath: Which range in age from 739 78 years but to rush out of the usgs map right outliers which are interpreted as close within the camera.
Randy Kath: And recently reported ages around 71 to 72 million years from these bodies if correct this clearly indicates the Colorado must be too old to perform during study hall or.
Randy Kath: The contact between the Colorado and matt Rogers on Asian appears to be formal in this study here the relationship cri lights within the car differ slightly commercial area, however, on the map the pale pink bright light unit in contact the corner rock include.
Randy Kath: These, but these volcanic rocks very much resemble and our long strike that the slightly older white top number of now.
Randy Kath: On the other hand, the shining dart team consists of plastic box they do appear to enter finger with glacial box.
Randy Kath: And the week, like in several highlights samples free rein were dating a shown by those stories on now, and those analyses reading problems that was look closely at the location picked up by the yellow star.
Randy Kath: Yes, there are complications to decide bring the exact relationship between the counter rock and the one candidates and our seminary but there's who shown here are the three model produced by a drone skin of a highly whether the very instructive run cut through the band classes.
Randy Kath: In the West end of the types of to your ride non world in touch your credit by via violated by and large painting diagram of the area that didn't scan well.
Randy Kath: The time Sir overlaying by course our case, they can tell us the dice and true the artist, as well as the bagel milestones and the camera.
Randy Kath: We sampled of lc night show here, could you chronology as it may be the unmistakable lock in this area.
Randy Kath: So instead of fun conclusion offer I offices it's got to be tested further our female relationships indicate that the class you sequence innovation kind of operation settlements our code evil.
Randy Kath: However, the older white highlight doesn't fit neatly into this feature.
Randy Kath: That taken into account the environment of the active partner looking at this time it's possible that the relational empire classic deposits were filling in with patients are the the top I lighted up looted in the football of the base and down the halls.
Randy Kath: summaries is leaving Iraq and snowball earth well reporting ages due to indicate that cannot glacial closets are too old for injuries know all events.
Randy Kath: But we have been determining the agent llc is the state or closely bracket the age of the days of deposits on rock and that's the onset of glaciation more secure, thank you.
Randy Kath: hey Thank you beth very interesting presentation does anyone have any questions for beth.
Randy Kath: Okay, yes please um.
Valarie Harrison: yeah did you run into any complications using the drone footage.
Beth McClellan: Yes, yes, that was one of our first attempts at doing outcrop studies, with the drones we have a quite a few here in our department at Radford and our students are really getting pretty good with them.
Beth McClellan: And, but the problem was it, it seemed like those, especially the may fake dykes that were really highly weathered.
Beth McClellan: We just couldn't get them imaged at all for some reason.
Beth McClellan: We were using PICs for the for the 3D image and even went back and re flew the the outcrop and still didn't turn out very well so lots to learn.
Valarie Harrison: yeah there are a lot of fun to fly i've been curious about using them for geologic mapping like that so it's very interesting, thank you.
Beth McClellan: Yes, we're doing that quite a bit here at read through dog, both for mapping and slope stability studies and that sort of thing so imaging outcrops and making 3D models that you can actually.
Beth McClellan: gather structural data from without having to measure everything with a Brenton.
Randy Kath: hey matt this Randy and we've been doing a lot of modeling to with drones and looking at some of the Rock towns and rock cities up in the pennsylvanians photography.
Randy Kath: And the biggest problem we have of course is tree cover and along this outcrop, but I would assume you didn't have much tree cover so what's causing the holes the black holes, you have any idea.
Beth McClellan: Well, I I still don't know for sure there's not much tree cover on the APP itself, it was recently scraped along this gravel road I think they tried to widen the road there.
Beth McClellan: And it's a falling apart, unfortunately, there are trees, right at the top of the outcrop and um let's see that's going to think.
Beth McClellan: They were blocking the sunlight.
Beth McClellan: You know it's pretty much blocking the sunlight all day long on that outcrop, and so I don't know if that was a problem or not just getting good images, especially toward the top a outcrop.
Randy Kath: You know, when we were putting in the sand rob period, we had the fly cerebral flight lines, because of the shadows of the trees and in those pennsylvanian rocks we had a lot of deep.
Randy Kath: In a weather joints in the shadows down there the when we put when we process, the data it didn't know what to do with those shadows and we had these huge voids and.
Randy Kath: When you rotate in 3D they were their massive canyons and they were just fractures so we had a little bit of trouble with that.
Beth McClellan: yeah that is a problem.
Beth McClellan: yeah we just recently gotten a heavy lift her own and allied arguments.
Beth McClellan: And of course the light dark and kind of take out the vegetation so we're looking forward to getting that going.
Randy Kath: yeah that'll be great these are these tools that we have down for doing mapping and and doing imagery and 3D scans and detailed topography, where we can see very small features on the ground is just I think it's spectacular it's really advanced in our mapping techniques.
Beth McClellan: Absolutely yeah.
Randy Kath: anybody else have any questions any further questions for math.
mark carter: I have one hey Baptist more.
mark carter: i've kept it a little late, because I was at another session so if the white top is a little too old for snow bar to how what would be the what would be the classic age, if you will, to get that.
mark carter: For snowball earth and how far or are you all.
Beth McClellan: So the Sturdy, one which is the main metamorphic excuse me thinking metamorphosis the main glaciation that marks the cry virginian period now is starts at 717 million years so we're will Wilson south of that I guess you could say.
Beth McClellan: yeah we're talking around 750 and of course Arthur has gotten these new ages now 751 to 752, on the other rights so looks like we're too old.
mark carter: Right, what would you.
mark carter: Do with Alpine glaciers that will feed into the system.
Beth McClellan: um yeah i'll probably sell I mean they're pretty localized, at least in terms of plex exposed or what's what we have you no evidence for anymore.
Beth McClellan: I know that in central Virginia northern Virginia, there are some that some glacial deposits that are thought to be younger and I some that i'm chuck Bailey and those people who worked on.
Randy Kath: It we should probably move on thanks beth a very interesting presentation.
Randy Kath: I next presentation is the geologic map of the leesburg and declined greenbrier county West Virginia and Sarah baldwin but will be presenting.
Randy Kath: Hello everyone i'm Sarah baldwin charleston southern University in charleston South Carolina thanks for coming today.
Randy Kath: If you would like.
Randy Kath: Please expand the video window, so you can see my slides word clearly the title of my poster is a geologic map of the wind Fergana Klein greenberg county West Virginia.
Randy Kath: This slide shows a little index map of the area and white and Gray, is where the mississippian green bar group is exposed it's about 800 feet of very shoreline stones, although you are surely units.
Randy Kath: It is under lane by the Mississippi and mcrae formation, which is shown in yellow on the map and overlaid by this in one chunk formations.
Randy Kath: Which is shown in pink on the map the area to the left the winds Fergana climb that banana thing is has never been mapped in a detailed way so that was the focus of this study, which was supported by the cave conservancy of Virginia.
Randy Kath: here's a strata graphic column of the limestone showing the names of units i'm at to the individual units and their structures and this is the final version of the map.
Randy Kath: interstate 64 runs right through the middle the northern edge is covered by some thick gravel opium and williamsburg sits up there on the North side, all of a sudden West Virginia sit down on the southern edge.
Randy Kath: Of the Mississippi the green bar group is shown in green very shades of green in the upper most unit, the alderson the shonan sort of a chocolate Brown.
Randy Kath: The credit information is kind of a rust light brown color and you can even see on the lidar here that the green limbs of the decline, make a deep cars Valley, which is full of springs caves sinking strains.
Randy Kath: and other course features.
Randy Kath: One of the big surprises of this study, which is in the appalachian plateau was the discovery of very large extensive reverse falls through this and client both lens.
Randy Kath: These reverse faults are up to 20 miles long they have some of them have 6800 feet of displacement on them and they did to the southeast so they showed up.
Randy Kath: On lidar they were one was identified by price in heck in 1939 several small ones were identified by my PhD thesis that's me Heller 1980 in the valley, the lewisburg Valley, to the east.
Randy Kath: But I was able to find these, especially on lidar which was provided by Dan Dr the US geological survey and they're recognizable by steeply different layers in this place, so the default zone is that red line.
Randy Kath: there's lower green bar lunch down on top of the mcrae shelf dipping gently to the West.
Randy Kath: The beds are shredded and vertical right their peers she's no fault zone and then to the left of that is occur greenberg group the older son and union and lily Dale shale.
Randy Kath: of lower my chunk and here's a cross section showing a sketch of the structures with two large cave which are also included in this.
Randy Kath: resurgence is pierce's mill cave and pure seascape.
Randy Kath: Some of the reverse faults were identifiable by aligned and cold shed in this picture.
Randy Kath: The yellow line is the raiders valley fault zone, there was major displacement on that and minor displacement on the pink and the yellow or pink in the green sorry.
Randy Kath: Just to the south of those aligned sinkholes culberson pre cuts across that area, and there are some really cute right folds of visible on the lidar shown by the arrows in this slide and the pink line is the mccready here the units are all the Bank to the east rather steeply.
Randy Kath: In the field, the finance world were visible, because the rocks were shredding so I have a photograph of that I usually it was the PIC way in the tiger that were involved in this, because they're more shelley and therefore more ductile.
Randy Kath: Also, you can see slick insides and some places along the faults and where the rocks have been stretched there were big cows leg veins shown in this last photo.
Randy Kath: I would like to thank the cake conservancy of the virginia's for their grants port West Virginia association of case studies for the use of their field house.
Randy Kath: Dan doctor who provided the lidar images Paula hunt who compiled the final map and my field assistance margaret's last and Jennifer merrick Thank you.
Randy Kath: Well, thank you, Sarah and I apologize on the slides they weren't sync so we toward the end there got a manual Sarah if you'd like me to go back to one of the slides in any particular one we've got about three to four minutes.
Sara Baldwin: The main map would be good, the one that's title just geologic map yeah.
Randy Kath: There you go.
Sara Baldwin: I synced um I don't know what happened.
Randy Kath: yeah that's okay I just I saw manually there and I was texting chatting with GSA and they thought they weren't seeing, but then I thought, well, maybe I can do it manually so.
Sara Baldwin: He did a great job.
Randy Kath: that's coming in, while they're good to find them but.
tabitha.
Randy Kath: Does anybody have questions for Sarah.
Randy Kath: That all this technology here so.
Beth McClellan: I Sarah a question i'm just interested in your term terminology shredded rock So where does that come from.
Sara Baldwin: I I should use the word cleavage I guess would be better, but it's just something that occurred to me.
Beth McClellan: look pretty shredded right.
Randy Kath: I guess a great new term.
Sara Baldwin: Was.
Sara Baldwin: Really striking when I can hop.
Randy Kath: On your insides.
Randy Kath: Are you in a sheer zone here.
Sara Baldwin: Yes, yes.
Sara Baldwin: Okay, this year's on was probably 100 feet wide in that particular spot it's exposed well on us highway 12 which goes right through that area.
Randy Kath: very nice.
Randy Kath: The last the poster if it doesn't haven't seen at least I know how to get the slides of now so on.
Randy Kath: Okay we'll go on to the next presentation, and this is lidar base mapping of landslides along the cusp of this river Washington revealing regional structure and volcanic hazards Isaac Pope will be presenting.
Isaac Pope: hello, may I share my screen, I will upload a.
Randy Kath: Video for them.
Randy Kath: yeah feel free to share your screen.
Isaac Pope: Okay.
Isaac Pope: All right, well.
Randy Kath: Thank you all.
Randy Kath: I can say that's okay.
Isaac Pope: We can just.
Isaac Pope: Okay, all right.
Isaac Pope: Thank you, I was just going to share my poster anyways.
Isaac Pope: Alright, well, thank you very much i'm a 17 year old freshman undergraduate students esoteric college and Western Washington.
Isaac Pope: And i've been very interested in the unusual relationship between landslides and Alice volcanism here in Southwest Washington.
Isaac Pope: So this this this river flows from a good rocks volcanic field and actually goes in through the triangle formed by mount Adams, to the south east St Helens the southwest and matter near to the north, as you can see, in a little bit and figure one here at the bottom.
Isaac Pope: One of the interesting things about the sisters river drainage is, although it fuels have.
Isaac Pope: A rich a forestry industry, and it has a this close relation to all the cascade volcanic there hasn't been a whole lot of hazard mapping in this area.
Isaac Pope: Even though we see it has been closely linked to a cascade volcanism general.
Isaac Pope: exposed longest river during our leasing museum volcanic.
Isaac Pope: And what kind of classics from the early cascade magnetism and, more recently, we have seen lava flows from Adams within the past 500,000 years flow down into the systems river and a number of glaciations, but most of the most.
Isaac Pope: predominantly most of the activity is supposed to happen along systems river supposed to be glacial origin early researchers along the sisters river thought that.
Isaac Pope: the depth of show terraces along the syllabus river resulted from glacial out wash during the Evans creek glaciation about 20,000 15,000 years ago.
Isaac Pope: But what we find is.
Isaac Pope: My.
Isaac Pope: my previous project on this area was studying these quarterly sort of tears deposits and.
Isaac Pope: We find invocation and number of other features that is indicative of debrief lows, and this is supported by large boulders up to several meters across that are found.
Isaac Pope: Within the terraces or overlying the terraces and, since these take terraces cannot be formed directly by glaciers, and the borders themselves are too large for glacial out wash.
Isaac Pope: And that's all the terraces or correlate to each other, then it is more likely that a large debris flow or alohar from now Adams within the last 6000 years ago, two years ago, after the.
Isaac Pope: Evans great glaciation.
Isaac Pope: And we can also see a number of features such as during the central area along the lidar neck, there are some taller strength terraces up to 3334 meters above the system is river and etched into those are.
Isaac Pope: NASA mostly channels which shows a very erosive of the heart and so it's all these terrorists supposed to have formed at the same time being.
Isaac Pope: formed within the same event, we can then use it as a time scribe graphic indicator to compare the landslides in this area so using lidar I then mapped.
Isaac Pope: These lands is based on their relation to overlying the terraces or being truncated by the deposits within those terraces the Greenland slides posted the syllabus lar from Adams.
Isaac Pope: yellow ones predate are the red ones are of unknown relation to the heart, but what we find is that the flows are sorry the landslides after the heart can be much larger.
Isaac Pope: than the ones previous, but they also have a wider distribution there's two population centers the larger ones, the smaller ones, well before the heart, we see a highly eroded one sometimes they're only scarves and other cases they have later been renegotiated.
Isaac Pope: But we see that this this was harvest likely have fairly erosive.
Isaac Pope: which has really triggered some of these landslides, which.
Isaac Pope: They asked her hazards.
Isaac Pope: But what we can also see is comparing these landslides to other regional structures, like pseudo carts that formed most likely during museum folding.
Isaac Pope: associated the cascadia.
Isaac Pope: subduction zone, we can then use these land sites to map regional falls, and then by finding a more closely the regional structure, we can then predict.
Isaac Pope: Where high risk Lopes may be or more unstable slopes.
Isaac Pope: which I hope to do in further research.
Isaac Pope: Thank you very much for your attention today, I very much welcome any suggestions or comments you may have on this research.
Randy Kath: I was a great job I really appreciate the.
Randy Kath: You and I know when you first contacted me about presenting this I thought this is a great forum to present this information, even those out in Washington, I think a lot of us learn.
Randy Kath: learn the details of how we can use lidar and other.
Randy Kath: techniques for determining geologic.
Randy Kath: structures and getting your cross cutting relations in your age relationships that you've.
Randy Kath: shown here.
Randy Kath: Does anybody have any questions for Isaac.
Isaac Pope: Thank you.
Randy Kath: still have about four minutes here so very interesting.
Randy Kath: So make McKinsey are you on with us.