2009 Portland GSA Annual Meeting (18-21 October 2009)

Session No. 33
Sunday, 18 October 2009: 9:00 AM-6:00 PM
Hall A (Oregon Convention Center)

Petrology, Igneous (Posters)

Authors will be present from 4 to 6 PM.

 

Paper #
Booth #
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173
EXPERIMENTAL INVESTIGATION OF AN-DI PHASE EQUILIBRIA AT 1-ATM, A COLLABORATIVE COURSE PROJECT
KELLEY, Janetta1, ZYLA, Adam1 and SCHWAB, Brandon Edward2, (1)Geology, Humboldt State University, 1 Harpst Street, Arcata, CA 95521, (2)Department of Geology, Humboldt State University, Arcata, CA 95521, beulablue21@gmail.com, beulablue21@gmail.com
2
174
PRELIMINARY RESULTS FROM 1.5 GPa PARTIAL MELTING EXPERIMENTS USING FER-A AND FER-E PERIDOTITE COMPOSITIONS AND VITREOUS CARBON SPHERES
BARR, Mary Alice, Geology, Humboldt State University, 1 Harpst Street, Arcata, CA 95521 and SCHWAB, Brandon Edward, Department of Geology, Humboldt State University, Arcata, CA 95521, marybarr02@hotmail.com, marybarr02@hotmail.com
3
175
A NEW GLOBAL DATABASE OF GEOCHEMICAL ANALYSES OF SEAFLOOR VOLCANIC GLASSES
JENNER, Frances1, O'NEILL, Hugh St.C.1, MAVROGENES, John A.2 and ARCULUS, Richard J.1, (1)Research School of Earth Sciences, The Australian National Univ, ACT, Canberra, 0200, Australia, (2)Geology Department and Reserch School of Earth Sciences, The Australian National Univ, ACT, Canberra, 0200, Australia, frances.jenner@anu.edu.au, frances.jenner@anu.edu.au
4
176
CRYSTAL SIZE DISTRIBUTIONS (CSDs) IN A BASALTIC FLOW AT THE SMALL HASANDAG VOLCANO, CENTRAL TURKEY: COMPARISON OF CALCULATED RESIDENCE TIMES WITH PLAGIOCLASE AND CLINOPYROXENE CRYSTALS
USTUNISIK, Gokce K., Geology, University of Cincinnati, 500 Geology/Physics Building, Cincinnati, OH 45221-0013 and KILINC, Attila, Department of Geology, University of Cincinnati, Cincinnati, OH 45221, ustunigk@email.uc.edu, ustunigk@email.uc.edu
5
177
GEOCHEMISTRY AND PETROLOGY OF LATE EOCENE CASCADE HEAD AND YACHATS BASALTS AND ALKALIC INTRUSIONS OF THE CENTRAL OREGON COAST RANGE, U.S.A
PARKER, Don F.1, HODGES, Floyd N.1, PERRY, Anna1, MITCHENER, Michael E.1, BARNES, Melanie A.2 and REN, Minghua3, (1)Department of Geology, Baylor University, One Bear Place #97354, Waco, TX 76798-7354, (2)Department of Geosciences, Texas Tech University, Lubbock, TX 79409, (3)Department of Geological Sciences, University of Texas at El Paso, 500 W. University Ave, El Paso, TX 79968, Don_Parker@baylor.edu, Don_Parker@baylor.edu
6
178
PETROLOGY AND GEOCHEMISTRY OF BASALTIC PILLOW LAVAS IN TETON CANYON, IDAHO, U.S.A
JORDAN, Benjamin R., EMBREE, Glenn F., MOORE, Dan K., ARD, Meesha and SANT, Christopher J., Department of Geology, Brigham Young University-Idaho, Rexburg, ID 83460, jordanb@byui.edu, jordanb@byui.edu
7
179
ORIGINS OF COMPOSITIONAL VARIATIONS IN SMALL VOLUME BASALTS: ELEMENTAL, ISOTOPIC AND MELT INCLUSION EVIDENCE FROM THE ICE SPRINGS BASALT FLOW, UTAH
THOMPSON, Jay M.1, PEATE, David1, ROWE, Michael C.2 and UKSTINS PEATE, Ingrid1, (1)Dept. of Geoscience, University of Iowa, 121 Trowbridge Hall, Iowa City, IA 52242, (2)School of the Environment, Washington State University, 1228 Webster Physical Science Bldg, Pullman, WA 99164-2812, jay-thompson@uiowa.edu, jay-thompson@uiowa.edu
8
180
EMPLACEMENT MECHANISMS AND PETROLOGIC CHARACTERISTICS OF BASALT FLOWS OF THE BLACK GAP SYNCLINE, WEST TEXAS
D'ERRICO, Megan, Geosciences, Trinity University, One Trinity Place, San Antonio, TX 78212, SURPLESS, Benjamin, Geosciences, Trinity University, 1 Trinity Place, San Antonio, TX 78212 and SMITH, Diane R., Department of Geosciences, Trinity University, One Trinity Place, Trinity University, San Antonio, TX 78212, mderrico@trinity.edu, mderrico@trinity.edu
9
181
PETROGENESIS OF THE RATON-CLAYTON VOLCANIC FIELD, NORTHEASTERN NEW MEXICO
WEGERT, Daniel J., Department of Geology, Baylor University, One Bear Place #97354, Waco, TX 76706-7354, EDLIN, David K., Civil and Environmental Engineering, Colorado School of Mines, 1500 Illinois St, Golden, CO 80401 and PARKER, Don F., Department of Geology, Baylor University, One Bear Place #97354, Waco, TX 76798-7354, daniel_wegert@baylor.edu, daniel_wegert@baylor.edu
10
182
GEOCHEMISTRY OF VOLCANIC ROCKS FROM THE MOUNT TAYLOR VOLCANIC FIELD, AND COMPARISON WITH THE NEARBY JEMEZ MOUNTAINS
FELLAH, Kamilla, School of Earth and Environmental Sciences, Washington State University, 445 NE Kamiaken, Apt B, Pullman, WA 99163, WOLFF, John A., School of Earth and Environmental Sciences, Washington State University, Pullman, WA 99164-2812 and GOFF, Fraser, Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131, klfellah@gmail.com, klfellah@gmail.com
11
183
FOSSIL FUMAROLIC PIPES IN THE TSHIREGE MEMBER OF THE BANDELIER TUFF
CAPORUSCIO, Florie A., Earth and Environmental Sciences Division, Los Alamos National Laboratory, MS-J514, Los Alamos, NM 87545, GARDNER, Jamie N., Gardner Geoscience, 14170 Hwy 4, Jemez Springs, NM 87025, SCHULTZ-FELLENZ, Emily S., Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545 and KELLEY, Richard E., Earth and Environmental Sciences Division, Los Alamos National Laboratory, MS D452, Los Alamos, NM 87545, floriec@lanl.gov, floriec@lanl.gov
12
184
TRACKING THE EVOLUTION OF MID CENOZOIC SILICIC MAGMA SYSTEMS IN THE SOUTHERN CHOCOLATE MOUNTAINS REGION, CALIFORNIA USING ZIRCON GEOCHEMISTRY AND QUARTZ AND ZIRCON GEOTHERMOMETRY
NEEDY, S.K., Geological Sciences, University of Alabama, Tuscaloosa, AL 35487, BARTH, A.P., Earth Sciences, Indiana University-Purdue University, 723 West Michigan Street, Indianapolis, IN 46202, JACOBSON, C.E., Geological and Atmospheric Sciences, Iowa State University, 253 Science I, Ames, IA 50011-3212, MAZDAB, F.K., Tucson, AZ 85721 and WOODEN, J.L., U.S Geological Survey, Menlo Park, CA 94025, sneedy@crimson.ua.edu, sneedy@crimson.ua.edu
13
185
OCCURRENCE AND DISTRIBUTION OF RHYOLITE MAGMA TYPES IN NE OREGON DURING JOHN DAY TIME
RICKER, Christopher1, STRECK, Martin J.1 and FERNS, Mark L.2, (1)Dept. of Geology, Portland State University, Portland, OR 97207, (2)Oregon Department of Geology and Mineral Industries, Baker City, OR 97814, cricker@pdx.edu, cricker@pdx.edu
14
186
REGIONAL MAGMATIC SETTING OF CALLAQUI VOLCANO (S-ANDES, CHILE)
REA, James C., Department of Earth & Environmental Sciences, Wesleyan University, WesBox 92112, 45 Wyllys Ave, Middletown, CT 06459, VAREKAMP, Johan C., Department of Earth & Environmental Sciences, Wesleyan University, 265 Church Street, Middletown, CT 06459, MANDEVILLE, Charles, Earth & Planetary Sciences, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024-5192, GOSS, Adam R., Department of Geological Sciences, University of Florida, 241 Williamson Hall, Gainesville, FL 32611 and COLVIN, Anna, GeoGlobal Energy LLC, Santa Rosa, CA 95401, jrea@wesleyan.edu, jrea@wesleyan.edu
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187
HABs, PICRITES AND MORE: EMERGING DETAILS ON MAGMATIC PROCESSES AT PRIMITIVE ARC VOLCANOES IN THE SOUTHERN MARIANAS
KOHUT, Edward, Geological Sciences, University of Delaware, 103 Penny Hall, Newark, DE 19716, TAMURA, Yoshihiko, R & D Center for Ocean Drilling Science, JAMSTEC, 2-15 Natsushima-cho, Yokosuka, 237-0061, Japan and STERN, Robert, Department of Geosciences, University of Texas at Dallas, 800 W Campbell Ave, Richardson, TX 75083-0688, ekoh@udel.edu, ekoh@udel.edu
16
188
THE ORIGIN OF TRACHYTE AND THE “DALY GAP” AT PANTELLERIA, ITALY
WHITE, John Charles, Department of Geography & Geology, Eastern Kentucky University, 521 Lancaster Ave, Roark 103, Richmond, KY 40475, PARKER, Don F., Department of Geology, Baylor University, One Bear Place #97354, Waco, TX 76798-7354 and REN, Minghua, Department of Geological Sciences, University of Texas at El Paso, El Paso, TX 79902, john.white@eku.edu, john.white@eku.edu
17
189
A REVISED PETROGENIC HISTORY FOR THE LATE PALEOZOIC FELSIC VOLCANIC ROCKS OF THE HARVEY FORMATION, SOUTHERN NEW BRUNSWICK, CANADA
GRAY, Taryn R., HANLEY, Jacob and DOSTAL, Jaroslav, Geology, Saint Mary's University, 923 Robie St, Halifax, NS B3H 3C3, Canada, Taryn.Gray@smu.ca, Taryn.Gray@smu.ca
18
190
PETROLOGY OF ORE-RELATED INTRUSIVE ROCKS IN MAHERABAD PORPHYRY CU-AU PROSPECT AREA, EAST OF IRAN
MALEKZADEH SHAFAROUDI, Azadeh, Department of Geological Sciences, Ferdowsi University of Mashhad, Iran, Research Center for Ore Deposit of Eastern Iran, Ferdowsi University of Mashhad, Iran, Mashhad, 1436-91775, Iran, KARIMPOUR, Mohammad H., Department of Geological Sciences, Ferdowsi University of Mashhad, Iran, and University of Colorado at Boulder, Boulder, CO 80309, STERN, Charles, Department of Geological Sciences, University of Colorado, Boulder, CO 80309 and STERN, Charles R., Department of Geological Sciences, University of Colorado, Department of Geological Sciences, University of Colorado, CB-399, Boulder, Co 80309-399, Boulder, CO 80309, aza_malek@yahoo.com, aza_malek@yahoo.com
19
191
GEOLOGY AND PETROLOGY OF TWO DISTINCT TYPES OF GRANITOIDS, EASTERN NAJMABAD, GHONABAD, IRAN
KARIMPOUR, Mohammad H.1, STERN, Charles R.2, FARMER, G. Lang2 and MORADI, Mehrab3, (1)Department of Geological Sciences, Ferdowsi University of Mashhad, Iran, Boulder, CO 80309, (2)Department of Geological Sciences, University of Colorado, Department of Geological Sciences, University of Colorado, CB-399, Boulder, Co 80309-399, Boulder, CO 80309, (3)Department of Geological Sciences, Ferdowsi University of Mashhad, Iran, Mashhad, 1436-91775, Iran, mehrabmoradi61@gmail.com, mehrabmoradi61@gmail.com
20
192
THERMOBAROMETRY OF MALAYER S-TYPE GRANITES, WESTERN IRAN
AHADNEJAD, Vahid and VALIZADEH, Mohammad Vali, Department of Geology, University College of Science, University of Tehran, 16th Azar St., Tehran, Iran, Tehran, 0098, Iran, ahadnejad@khayam.ut.ac.ir, ahadnejad@khayam.ut.ac.ir
21
193
DETRITAL U-PB ZIRCON DATING OF GRANITOIDS IN THE SOURSAT COMPLEX(NW IRAN)
JAMSHIDI BADR, Mahboobeh, Geology, Tarbiat Moalem University, 49, Mofateh Ave, Tehran. Iran, Tehran, Iran, COLLINS, Alan.S, MASOUDI, Fariborz and MAHRABI, Behzad, m_jamshidi@tmu.ac.ir, m_jamshidi@tmu.ac.ir
22
194
HIGH PRECISION U-PB GEOCHRONOLOGY OF THE FANGSHAN PLUTON, BEIJING, CHINA: IMPLICATION FOR THE INCREMENTAL GROWTH OF ZONED PLUTONS
ZHANG, Tao, Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089, PATERSON, Scott R., Department of Earth Sciences, University of Southern California, 3651 Trousdale Pkwy, Zumberge Hall of Science (ZHS), Los Angeles, CA 90089-0740, MUNDIL, Roland, Berkeley Geochronology Ctr, 2455 Ridge Rd, Berkeley, CA 94709-1211 and HE, Bin, Key lab of isotope geochronology and geochemistry, Guangzhou institute of Geochemistry, China Academy of Science, Guangzhou, 510640, taozhang@usc.edu, taozhang@usc.edu
23
195
EXAMINATION OF A VOLCANIC-PLUTONIC CONTACT IN A TILTED MAGMATIC ARC CRUSTAL SECTION IN SOUTHWESTERN MONGOLIA
MACGILLIVRAY, Holly M.1, ECONOMOS, Rita2 and PATERSON, Scott1, (1)Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089-0740, (2)Department of Earth Sciences, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, hmacgill@usc.edu, hmacgill@usc.edu
24
196
ZIRCON, XENOTIME AND MONAZITE STABILITY IN EVOLVING PEGMATITE FLUIDS: IMPLICATIONS FOR GEOCHRONOMETER STABILITY IN IGNEOUS AND METAMORPHIC SYSTEMS
HETHERINGTON, Callum J., Department of Geosciences, Texas Tech University, Box 41053, Lubbock, TX 79409-1053, callum.hetherington@ttu.edu, callum.hetherington@ttu.edu
25
197
PUNA GRANITIC PLUTONISM AS POSSIBLE NORTHERN CONTINUATION OF THE LATE PALEOZOIC–EARLY TRIASSIC MAGMATIC ARC FROM THE FRONTAL CORDILLERA, ARGENTINA
POMA, Stella1, QUENARDELLE, Sonia1 and KOUKHARSKY, Magdalena2, (1)Ciencias Geológicas, Facultad de Cs Exactas y Naturales, Universidad de Buenos Aires, I. Guiraldes 2160, Buenos Aires, 1428, Argentina, (2)Ciencias Geologicas, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), I. Guiraldes 2160, Buenos Aires, 1428, Argentina, stella@gl.fcen.uba.ar, stella@gl.fcen.uba.ar
26
198
COMPARISON BETWEEN ROOF DIKES AND EQUIVALENT INTRUSIVE ROCKS FROM THE WOOLEY CREEK BATHOLITH AND THE SLINKARD PLUTON, KLAMATH MOUNTAINS, CALIFORNIA: A LASER ABLATION ICP-MS STUDY OF AUGITE
COINT, Nolwenn, Department of Geosciences, Texas Tech University, Lubbock, TX 79409 and BARNES, Calvin G., Department of Geosciences, Texas Tech University, Box 41053, Lubbock, TX 79409-1053, nolwenn.coint@ttu.edu, nolwenn.coint@ttu.edu
27
199
THERMAL AND MAGMATIC EVOLUTION OF A CALC-ALKALIC BATHOLITH RECORDED IN ELEMENTAL AND ISOTOPIC COMPOSITIONS OF SILICATE MINERAL ASSEMBLAGES: BIG BEAR LAKE INTRUSIVE SUITE, SAN BERNARDINO MOUNTAINS, CALIFORNIA
BARTH, A.P.1, WOODEN, J.L.2, MUELLER, Paul A.3, KAMENOV, G.D.3 and MAZDAB, F.K.4, (1)Earth Sciences, Indiana University-Purdue University, 723 West Michigan Street, Indianapolis, IN 46202, (2)Stanford University, Stanford, CA 94305, (3)Department of Geological Sciences, University of Florida, Gainesville, FL 32611, (4)Tucson, AZ 85721, ibsz100@iupui.edu, ibsz100@iupui.edu
28
200
PETROLOGY AND GEOCHEMISTRY OF THE MELROSE STOCK, EAST CENTRAL NEVADA
EL-SHAZLY, Aley K., NAPIER, Jeffrey and SANDERSON, Dewey, Geology Department, Marshall University, Huntington, WV 25725, elshazly@marshall.edu, elshazly@marshall.edu
29
201
PETROLOGY OF THE IGNEOUS ROCKS OF SAWTELL PEAK, IDAHO, U.S.A
MOORE, Dan K., JORDAN, Benjamin R., WOOD, Rebekah E., SANT, Christopher J. and MILLER, Barry C., Department of Geology, Brigham Young University-Idaho, Rexburg, ID 83460, moored@byui.edu, moored@byui.edu
30
202
GEOCHEMISTRY OF THE LATE JURASSIC QUARTZ MOUNTAIN STOCK, MANASTASH INLIER, CENTRAL CASCADES, WASHINGTON: IMPLICATIONS FOR ITS TECTONIC SETTING
MACDONALD Jr, James H., Marine and Ecological Sciences, Florida Gulf Coast State University, 10501 FGCU Boulevard South, Fort Myers, FL 33965, MILLER, Robert B., Geology Department, San Jose State University, One Washington Square, San Jose, CA 95192, SCHOONMAKER, Adam, Geosciences, Utica College, 175 Gordon Hall, 1600 Burrstone Road, Utica, NY 13502 and HARPER, Gregory D., Professor Emeritus, University at Albany, Albany, NY 12222, adschoonmaker@utica.edu, adschoonmaker@utica.edu
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203
GRANITIC ADAKITE PLUTONS AND BIMODAL VOLCANISM IN A COLLISIONAL TERRANE SUTURE ZONE, NORTHERN TALKEETNA MOUNTAINS, ALASKA
COLE, Ronald B., Department of Geology, Allegheny College, 520 N. Main Street, Meadville, PA 16335, STEWART, Brian W., Department of Geology & Planetary Science, University of Pittsburgh, Pittsburgh, PA 15260 and LAYER, Paul, Department of Geology and Geophysics, Univ of Alaska Fairbanks, Fairbanks, AK 99701, ron.cole@allegheny.edu, ron.cole@allegheny.edu
32
204
GEOCHEMISTRY, AGE, AND DEFORMATION OF EOCENE SLAB WINDOW INTRUSIONS IN A REMNANT FOREARC BASIN, MATANUSKA VALLEY, SOUTHERN ALASKA
FITZGERALD, Sean1, SCHWARTZ, Theresa M.1, FLANAGAN, Daniel M.2, HUNG, Chien-Hui3, CHUNG, Sun-Lin3 and COLE, Ronald B.1, (1)Department of Geology, Allegheny College, Meadville, PA 16335, (2)Department of Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235, (3)Department of Geosciences, National Taiwan University, PO Box 13-318, Taipei, 106, Taiwan, deftones2141@gmail.com, deftones2141@gmail.com
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205
MID-PROTEROZOIC GRANITES OF THE LLANO UPLIFT: VARIED SOURCES AS REFLECTED BY STABLE ISOTOPES
RANGEL, Evelyn1, RICHARDS, Ian2, FERGUSON, Kurt3 and GREGORY, Robert T.2, (1)Huffington Department of Earth Sciences, Southern Methodist University, Dallas, TX 75275, (2)Stable Isotope Laboratory, Southern Methodist University, 3225 Daniel Avenue, Dallas, TX 75275, (3)Stable Isotope Laboratory, Southern Methodist University, Dallas, TX 75275, geodork54@yahoo.com, geodork54@yahoo.com
34
206
CAN HORNBLENDE BAROMETRY RESOLVE DIFFERENTIAL UPLIFT ACROSS THE MOUNT WHITNEY REGION, EASTERN SIERRA NEVADA, CALIFORNIA?
HIRT, William H., Biological and Physical Sciences, College of the Siskiyous, 800 College Avenue, Weed, CA 96094, hirt@siskiyous.edu, hirt@siskiyous.edu
35
207
THE ORIGIN OF DUNITE AND HARZBUGITE ENCLAVES IN LAYERED CUMULATES OF THE NINTYONE MILE CREEK CANYON PERIDOTITE, GRAND CANYON, USA
LOW, P.C., Department of Geology, Washington and Lee University, Science Addition, Lexington, VA 24450, SEAMAN, Sheila J., Geosciences, University of Massachusetts, 611 North Pleasant Street, Amherst, MA 01003, WILLIAMS, Michael L., Department of Geosciences, University of Massachusetts, Amherst, 611 North Pleasant Street, Amherst, MA 01003 and KARLSTROM, Karl E., Dept. of Earth & Planetary Sciences, Univ of New Mexico, Northrop Hall, Albuquerque, NM 87131, lowp@wlu.edu, lowp@wlu.edu
36
208
CYCLICAL PHASE LAYERING IN THE DULUTH COMPLEX AT DULUTH – EVIDENCE FOR PERIODIC MAGMA VENTING FROM A SHALLOW STAGING CHAMBER
STIFTER, Eric C., Department of Geological Sciences, Indiana University, 1001 East 10th St, Bloomington, IN 47405 and MILLER Jr, James D., Department of Geological Sciences, University of Minnesota Duluth, 230 Heller Hall, Duluth, MN 55812, estifter@indiana.edu, estifter@indiana.edu
37
209
NOMARSKI DIFFERENTIAL INTERFERENCE CONTRAST (NDIC) ANALYSIS OF MOUNT ETNA PLAGIOCLASE THROUGH HISTORICAL TIME AND ITS POSSIBLE IMPLICATIONS FOR VARIATION IN MAGMATIC PLUMBING
MOSES, Maureen N. and BOHRSON, Wendy A., Department of Geological Sciences, Central Washington University, 400 E. University Way, Ellensburg, WA 98926, maureennmoses@gmail.com, maureennmoses@gmail.com
38
210
ASSEMBLY AND FRAGMENTATION OF THE PROTEROZOIC SUPERCONTINENTS COLUMBIA AND RODINIA: NEW U-PB AGE DATA FROM THE EASTERN GHATS BELT, INDIA
KUMAR, K. Vijaya, Geological and Environmental Sciences, Stanford University, Bldg. 320, Room 118, Stanford, CA 94305-2115, ERNST, W.G., Geological and Environmental Sciences, Stanford University, Building 320, Room 118, Stanford, CA 94305-2115, LEELANANDAM, C., Geology, Osmania University, Tarnaka, Hyderabad, 500 017, India, WOODEN, Joseph L., USGS-Stanford Ion Microprobe Laboratory, Stanford University, Stanford, CA 94305 and GROVE, Marty J., N/a, Stanford University, Stanford, CA 94305, vijay_kumar92@hotmail.com, vijay_kumar92@hotmail.com
39
211
GEOCHEMICAL EVOLUTION OF THE COBB HOTSPOT
CHADWICK, John, Geography and Earth Sciences, University of North Carolina at Charlotte, McEniry Hall, Charlotte, NC 28223, KELLER, Randall, Geosciences, Oregon State University, Corvallis, OR 97331 and KAMENOV, George D., Department of Geological Sciences, University of Florida, Gainesville, FL 32611, djchadwi@uncc.edu, djchadwi@uncc.edu
40
212
CHEMICAL AND STRUCTURAL ANALYSIS OF THE LOWER CRESCENT FORMATION AT MT. TEBO AND LAKE CUSHMAN, OLYMPIC PENINSULA, WASHINGTON: EVIDENCE FOR TERTIARY RIFTING
SMITH, Elizabeth A.1, WALDRON, Emily M.1 and CLARK, Kenneth P.2, (1)Geology, University of Puget Sound, 3402 North Seventh Street, Tacoma, WA 98406, (2)Geology, University of Puget Sound, 1500 North Warner, Tacoma, WA 98416, smielizabeth@gmail.com, smielizabeth@gmail.com