Session: Undergraduate Research Session (Posters) (Cordilleran Section

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37

CRETACEOUS STROMATOLITIC MICROFOSSILS FROM SONORA, MEXICO

BERALDI-CAMPESI, Hugo¹, CEVALLOS-FERRIZ, Sergio R.S.² and CHACON-BACA, Elizabeth¹, (1)Posgrado en Ciencias Biologicas, Instituto de Geologia, Universidad Nacional Autonoma de Mexico, Ciudad Univeristaria, Mexico, 04510, Mexico, (2)Instituto de Geologia, Universidad Nacional Autonoma de Mexico, Ciudad Universitaria, Mexico D.F, 04510, Mexico, hberaldi@servidor.unam.mx, hberaldi@servidor.unam.mx

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GEOLOGY, GEOCHEMISTRY AND STRUCTURAL GEOLOGY OF THE MYLONITIC COMPLEXES OF THE TEZIUTLAN BASEMENT, PUEBLA STATE, IN EASTERN MEXICO

ANGELES-MORENO, Edgar¹, SANCHEZ-MARTINEZ, Salvador¹, CENTENO-GARCIA, Elena¹, MORTENSEN, James K.², SOLE-VIÑAS, Jesus¹, SOLIS-PICHARDO, Gabriela¹ and SCHAAF II, Peter³, (1)Instituto de Geologia, Universidad Nacional Autonoma de Mexico, Ciudad Universitaria, Mexico D. F, 04510, Mexico, (2)Univ British Columbia, 6270 University Blvd, Vancouver, BC V6T 1Z4, Canada, (3)Instituto de Geofísica, UNAM, Instituto de Geofísica, UNAM, México,D.F, 04510, Mexico, edgarangelesm@yahoo.com, edgarangelesm@yahoo.com

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39

INTERACTIONS BETWEEN CYANOPHYTA AND GYPSUM PLATES, CHIHUAHUAN DESERT, SW TEXAS

DELUCCIA, Kristian, Geology and Environmental Science, Hartwick College, One Hartwick Drive, Oneonta, NY 13820, JOHNSON, Eric Lee, Geology, Hartwick College, Miller Science, Oneonta, NY 13820 and ALLEN, Mary, Biology, Hartwick College, One Hartwick Drive, Oneonta, NY 13820, DeLucciaK@Hartwick.edu, DeLucciaK@Hartwick.edu

4

40

TREE RING EVIDENCE FOR A MEDIEVAL WARM PERIOD IN COLUMBIA BAY, ALASKA

BRADY, Kristina L., Geology, The College of Wooster, Wooster, OH 44691, WILES, Gregory C., Geology, The College of Wooster, 1189 Beall Ave, Wooster, OH 44691, D'ARRIGO, Rosanne, Tree ring Lab, Lamont-Doherty Earth Observatory, Palisades, NY 10964 and CALKIN, Parker E., Institute of Arctic and Alpine Research, Univ of Colorado, Boulder, CO 80309, kbrady@wooster.edu, kbrady@wooster.edu

5

41

TIMING AND EXTENT OF LATE-WISCONSIN GLACIATION IN THE ALBION RANGE, SOUTH-CENTRAL IDAHO

BOWERMAN, Nicole D., Geology, Western Washington Univ, 516 High St, Bellingham, WA 98225-9080, BOVET, Paul M., Geology, Colorado College, 14 East Cache La Poudre St, Colorado Springs, CO 80903, CADOL, Daniel, Geology, Whitman College, 345 Boyer, Walla Walla, WA 99362 and CLARK, Douglas H., Geology, Western Washington Univ, 516 High Street, Bellingham, WA 98225-9080, bowermn@cc.wwu.edu, bowermn@cc.wwu.edu

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42

PALEOSOL DEVELOPMENT THROUGH INTENSE WEATHERING OF A PALEOCENE SANDSTONE DURING A TROPICAL CLIMATE

NORIEGA, Gabriela, RAMIREZ, Pedro C. and HERNANDEZ, Hector O., Department of Geological Sciences, California State Univ, Los Angeles, 5151 State University Dr, Los Angeles, CA 90032, gnorieg2@calstatela.edu, gnorieg2@calstatela.edu

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INFLUENCE OF CLIMATE ON THE DEVELOPMENT OF AN ANCIENT PALEOSOL

HERNANDEZ, Hector O., RAMIREZ, Pedro C. and NORIEGA, Gabriela, Department of Geological Sciences, California State Univ, Los Angeles, 5151 State University Dr, Los Angeles, CA 90032, baseballpitcher45@yahoo.com, baseballpitcher45@yahoo.com

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44

GEOMORPHOLOGY OF TERRACES DEVELOPED ON THE EASTERN FLANK OF THE SIERRA EL MAYOR, NORTHERN BAJA CALIFORNIA, MEXICO

PEREZ, Rene A. and ARMSTRONG, Phillip A., Geological Sciences, California State Univ, Fullerton, 800 N. State College Blvd, Fullerton, CA 92834, RPerez@fullerton.edu, RPerez@fullerton.edu

9

45

RECENT FAULT SLIP IN QUEEN VALLEY, CALIFORNIA: IMPLICATIONS FOR FAULT KINEMATICS IN THE EASTERN CALIFORNIA SHEAR ZONE

GARWOOD, Jason D.¹, LEE, Jeffrey¹ and WOOD, Aaron², (1)Dept. of Geological Sciences, Central Washington Univ, Ellensburg, WA 98926, (2)Dept. of Earth Sciences, Univ of California, Riverside, CA 92521, absolutJack@yahoo.com, absolutJack@yahoo.com

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46

EVIDENCE FOR ACTIVE TECTONICS ALONG THE AUSTRALIAN PASSIVE MARGIN: QUATERNARY MARINE TERRACES OF WARATAH BAY, VICTORIA

AMBORN, Terri A.¹, MARSHALL, Jeffrey S.¹ and GARDNER, Thomas W.², (1)Geological Sciences Department, Cal Poly Univ, Pomona, CA 91768, (2)Department of Geosciences, Trinity Univ, San Antonio, TX 78212, taamborn@csupomona.edu, taamborn@csupomona.edu

11

47

GEOLOGIC MAPPING OF THE CRESCENT FORMATION OF THE SOUTHEAST OLYMPIC MOUNTAINS, WASHINGTON STATE

EASTERLY, Heather¹, CLARK, Kenneth² and VALENTINE, Michael², (1)Geology, Univ of Puget Sound, Tacoma, WA 98406, (2)Geology, Univ of Puget Sound, Tacoma, WA, empirewolf@yahoo.com, empirewolf@yahoo.com

12

48

PALEOMAGNETIC INVESTIGATIONS OF PEACH SPRINGS TUFF (PST) AND OTHER PRE-EXTENSIONAL IGNIMBRITES IN THE COLORADO RIVER EXTENSIONAL CORRIDOR, LAUGHLIN, NV TO KINGMAN, AZ REGION

WELTY, Nicklaus R. and VARGA, Robert J., Geology, College of Wooster, 1189 Beall Ave, Wooster, OH 44691, nwelty@wooster.edu, nwelty@wooster.edu

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49

DISCRIMINATION AND CORRELATION OF PEACH SPRINGS TUFF AND PEACH SPRING AGE-EQUIVALENT IGNIMBRITES BY GEOCHRONOLOGY, PETROLOGY, AND IMMOBILE ELEMENT GEOCHEMISTRY, NORTHERN COLORADO RIVER EXTENSIONAL CORRIDOR

GAUDIO, Sarah J., VARGA, Robert J. and BETTISON-VARGA, Lori, Geology, College of Wooster, 1189 Beall Ave, Wooster, OH 44691, sgaudio@wooster.edu, sgaudio@wooster.edu

14

50

VOLCANIC HAZARDS ASSESSMENT USING REMOTE SENSING DATA FROM THE TRES VIRGENES VOLCANIC COMPLEX, BAJA CALIFORNIA SUR, MEXICO

PARRA, Julie G., Department of Geological Sciences, California State Polytechnic Univ, Pomona, 3801 West Temple Avenue, Pomona, CA 91768 and STOCK, Joann M., Seismological Laboratory, California Institute of Technology, M/C 252-21, 1200 East California Blvd, Pasadena, CA 91125, paplotl@hotmail.com, paplotl@hotmail.com

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51

PETROLOGY AND GEOCHEMCIAL ANALYSIS OF VOLCANIC DEPOSITS IN THE TENORIO VOLCANIC COMPLEX, BIJAGUA, NORTHWESTERN COSTA RICA

KITCHEN, Cortney H., NOBLETT, Jeff and SAK, Peter B., Geology Department, Colorado College, 14 E. Cache La Poudre, Colorado Springs, CO 80903, c_kitchen@coloradocollege.edu, c_kitchen@coloradocollege.edu

16

52

COMPARISON OF THE PETROLOGY OF BASALTS ALONG A LEFT LATERAL FAULT, JOSHUA TREE NATIONAL PARK, SOUTHERN CALIFORNIA

PROBST, Kelly R., Department of Geology, Indiana University-Purdue University, Indianapolis, 723 W. Michigan Street, Indianapolis, IN 46202, BARTH, Andrew P., Department of Geology, Indiana University-Purdue University, Indianapolis, Indianapolis, IN 46202 and YI, Keewook, Oral Health Research Institute, Indiana Univ, 415 Lansing St, Indianapolis, IN 46202, kprobst@iupui.edu, kprobst@iupui.edu

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53

FIELD, PETROGRAPHIC, AND GEOCHEMICAL VARIATION IN ROCKS PREVIOUSLY MAPPED AS THE PEARSE PEAK DIORITE, ELK RIVER, SOUTHERN COASTAL OREGON

WETENKAMP, James A., CHRISTMAN, Nathan and GIARAMITA, Mario J., Department of Physics and Geology, California State Univ, Stanislaus, Turlock, CA 95382, Jimlinkamp@hotmail.com, Jimlinkamp@hotmail.com

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54

RELATIONSHIPS BETWEEN DEFORMATION BAND DISTRIBUTION AND HOST ROCK CHARACTERISTICS, SAN ONOFRE, CALIFORNIA

MORTON, Nissa¹, HOLLEY, Elizabeth², MYERS, Adam² and REINEN, Linda², (1)Pomona College, Claremont, CA 91711, (2)Pomona College, Claremont, CA, Nissa.Morton@pomona.edu, Nissa.Morton@pomona.edu

19

55

ACTIVE BEACH PROCESSES AT SAN ONOFRE STATE BEACH, CA

KAST, Phillip, LAZZARESCHI, Daniel, KOCH, Nobu and REINEN, Linda, Geology, Pomona College, 609 N. College Ave, Claremont, CA 91711, pak02000@pomona.edu, pak02000@pomona.edu

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56

DETERMINATION OF PALEOGEOGRAPHY AND DEPOSITIONAL ENVIRONMENT WITHIN PHOSPHORITE BEARING REMNANTS OF THE SAN PEDRO DEL GALLO TERRANE IN NORTHEASTERN MEXICO

CROSS Jr, Edgar K., Exploration/Operations, Royal/Dutch Shell, One Shell Square, New Orleans, LA 70140 and PESSAGNO Jr, Emile A., Geosciences, The Univ of Texas at Dallas, Richardson, TX, edgar.cross@shell.com, edgar.cross@shell.com

Cordilleran Section - 99th Annual (April 1–3, 2003)

T17. Undergraduate Research Session (Posters)