Session: Rocky Mountains II: Lithospheric Structure and Evolution of Rocky Mountain Region, from Deep Mantle to Mountain Tops II (2002 Denver Annual Meeting (October 27-30, 2002))

Session No. 113

Monday, 28 October 2002: 1:30 PM-5:30 PM

T117. Rocky Mountains II: Lithospheric Structure and Evolution of Rocky Mountain Region, from Deep Mantle to Mountain Tops II

GSA Structural Geology and Tectonics Division

Karl E. Karlstrom and Michael L. Williams, Advocates

Paper #

Start Time

1:30 PM

CONTRASTING LOWER CRUSTAL EVOLUTION ACROSS AN ARCHEAN-PROTEROZOIC SUTURE: PHYSICAL, CHEMICAL AND GEOCHRONOLOGIC STUDIES OF LOWER CRUSTAL XENOLITHS IN SOUTHERN WYOMING AND NORTHERN COLORADO

FARMER, G. Lang, Univ Colorado - Boulder, PO Box 399, Boulder, CO 80309-0399, BOWRING, Samuel, EARTHTIME, 77 Moss Ave, MIT54-1120, Cambridge, MA 02139, CHRISTENSEN, Nikolas I., Univ Wisconsin - Madison, 1215 W Dayton St, Madison, WI 53706-1692, WILLIAMS, Michael, Department of Geosciences, Univ of Massachusetts, Amherst, MA 01002, STEVENS, Liane, Department of Geosciences, Univ of Massachusetts, Morrill Science Center, 611 North Pleasant Street, Amherst, MA 01003-5820 and MATZEL, Jennifer, Department of Earth and Planetary Science, M.I.T, 77 Massachussetts Ave, Cambridge, MA 02139, farmer@cires.colorado.edu, farmer@cires.colorado.edu

1:45 PM

PALEOPROTEROZOIC TO MESOPROTEROZOIC EVOLUTION OF SOUTHWESTERN NORTH AMERICA: THE VIEW FROM THE LOWER CRUST

CROWLEY, James L.¹, MATZEL, Jennifer P.¹, BOWRING, Samuel A.¹, WILLIAMS, Michael L.², FARMER, G. Lang³ and KARLSTROM, Karl E.⁴, (1)Dept. of EAPS, MIT, Cambridge, MA 02139, (2)Department of Geosciences, Univ of Massachusetts, Morrill Science Center, 611 North Pleasant Street, Amherst, MA 01003-5820, (3)Dept. of Geol. Sci, Univ. of CO, Boulder, CO 80309, (4)Dept. of EPS, Univ. of NM, Albuquerque, NM 87131, jlcrowle@mit.edu, jlcrowle@mit.edu

2:00 PM

U-PB ZIRCON AGES OF ECLOGITES, GARNETITES, AND CENOZOIC ROCK-WATER REACTIONS IN PROTEROZOIC MANTLE BELOW THE COLORADO PLATEAU

SMITH, Douglas¹, MOSER, Desmond E.², CONNELLY, James N.¹, MANSER, Kathryn¹ and SCHULZE, Daniel J.³, (1)Univ Texas - Austin, Dept Geological Sciences, C1100, Austin, TX 78712-1101, (2)Geology & Geophysics, Univ of Utah, 135 South 1460 East, Browning Building - Room 609, Salt Lake City, UT 84112-0011, (3)Univ Toronto - Erindale College, Dept Geology, Mississauga, ON L5L 1C6, Canada, doug@maestro.geo.utexas.edu, doug@maestro.geo.utexas.edu

2:15 PM

RIO GRANDE RIFT LITHOSPHERIC STRUCTURE AND AGE AS REVEALED BY MANTLE XENOLITHS FROM KILBOURNE HOLE, NEW MEXICO

ANTHONY, Elizabeth Y.¹, KAPPUS, Eric² and VELADOR, Jesus², (1)Department of Geological Sciences, Univ of Texas at El Paso, 500 W. University Ave, El Paso, TX 79968, (2)Department of Geological Sciences, Univ of Texas at El Paso, El Paso, TX 79968, eanthony@geo.utep.edu, eanthony@geo.utep.edu

2:30 PM

LITHOPROBE NEAR-VERTICAL TO WIDE-ANGLE SEISMIC PROFILES ACROSS THE NORTHERN CANADIAN CORDILLERA: COMPARISON AND INTERPRETATION

CLOWES, Ron M.¹, HAMMER, Philip T.C.², WELFORD, J. Kim² and FERNANDEZ VIEJO, Gabriela³, (1)LITHOPROBE and Earth & Ocean Sciences, Univ of British Columbia, 6339 Stores Road, Vancouver, BC V6T 1Z4, Canada, (2)Earth & Ocean Sciences, Univ of British Columbia, 6339 Stores Road, Vancouver, BC V6T 1Z4, Canada, (3)Earth & Ocean Sciences, University of British Columbia, 6339 Stores Road, Vancouver, BC V6T 1Z4, Canada, clowes@lithoprobe.ubc.ca, clowes@lithoprobe.ubc.ca

2:45 PM

VELOCITY STRUCTURE OF THE ROCKY MOUNTAINS BASED ON DEEP PROBE '95 AND CD-ROM '99 SEISMIC REFRACTION/WIDE-ANGLE REFLECTION DATA

SNELSON, Catherine M.¹, RUMPEL, Hanna-Maria², KELLER, G. Randy³, MILLER, Kate C.³, PRODEHL, Claus² and LEVANDER, Alan⁴, (1)Department of Geoscience, Univ of Nevada, Las Vegas, 4505 Maryland Parkway, Box 454010, Las Vegas, NV 89154-4010, (2)Geophysikalisches Institut, Univ of Karlsruhe, Hertzstr.16, Karlsruhe, 76187, Germany, (3)Department of Geological Sciences, Univ of Texas at El Paso, El Paso, TX 79968, (4)Department of Earth Science, Rice Univ, 6100 Main Street, MS 126, Houston, TX 77005, csnelson@unlv.edu, csnelson@unlv.edu

3:00 PM

Break

3:15 PM

UPLIFT OF THE SOUTHERN ROCKY MOUNTAINS AND ALVARADO RIDGE

EATON, Gordon P., SeaMountain Country, 705 Snowberry Lane, Suite O, Coupeville, WA 98239, geaton@whidbey.net, geaton@whidbey.net

3:30 PM

ISOSTATIC SUPPORT OF THE COLORADO PLATEAU

CHASE, C.G.¹, LIBARKIN, J.A.² and SUSSMAN, A.J.¹, (1)Department of Geosciences, Univ of Arizona, 1040 E 4th St, Tucson, AZ 85721-0077, (2)Science Education Department, Harvard College Observatory, 60 Garden St. MS-71, Cambridge, MA 02138, chase@geo.arizona.edu, chase@geo.arizona.edu

3:45 PM

GEOPHYSICAL EVIDENCE FOR PROCESSES OF CORDILLERAN UPLIFT

LOWRY, Anthony R., Department of Physics, Univ Colorado - Boulder, Boulder, CO 80309-0390, arlowry@himalaya.colorado.edu, arlowry@himalaya.colorado.edu

4:00 PM

CRUSTAL EVOLUTION OF THE SOUTHERN ROCKY MOUNTAIN REGION

KELLER, G. Randy¹, KARLSTROM, Karl², MILLER, Kate C.³, SNELSON, Catherine⁴, ANDRONICOS, Christopher³, WILLIAMS, Michael⁵ and LEVANDER, Alan⁶, (1)Department of Geological Sciences/ PACES, Univ of Texas at El Paso, El Paso, TX 79968, (2)Earth and Planetary Sciences, Univ of New Mexico, 200 Yale Blvd. NE, Northrop Hall, Albuquerque, NM 87131, (3)Department of Geological Sciences, Univ of Texas at El Paso, El Paso, TX 79968, (4)Department of Geoscience, Univ of Nevada, Las Vegas, NV 89154-4010, (5)Department of Geosciences, Univ of Massachusetts, Amherst, MA 01002, (6)Geology and Geophysics, Rice Univ, 6100 Main Street, MS 126, Houston, TX 77005, keller@geo.utep.edu, keller@geo.utep.edu

4:15 PM

LATE CENOZOIC EVOLUTION OF THE SOUTHERN ROCKY MOUNTAINS

DUEKER, Ken G, Geology and Geophysics, Univ of Wyoming, 16 and Gibbons, Laramie, WY 82071, dueker@uwyo.edu, dueker@uwyo.edu

4:30 PM

Panel Discussion

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