Session: Multidisciplinary Studies of the Rio Grande Rift: Basins, Volcanism, Geophysics, and Hydrogeology (Posters) (Rocky Mountain Section

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RECENT MAPPING OF TERTIARY VOLCANICLASTIC ROCKS IN THE TUSAS MOUNTAINS, NORTHERN NEW MEXICO

ABY, Scott B., Muddy Spring Geology, Box 488, Dixon, NM 87527, scottandlluvia@gmail.com, scottandlluvia@gmail.com

2

22

EVOLUTION OF THE RIO GRANDE BY FLUVIAL SPILLOVER

CONNELL, Sean D., New Mexico Bureau of Geology and Mineral Resources, New Mexico Institute of Mining and Technology, 2808 Central Ave. SE, Albuquerque, NM 87106, SMITH, Gary A., Earth and Planetary Sciences, University of New Mexico, MSC03 2040, Albuquerque, NM 87131 and MACK, Greg H., Geological Sciences, New Mexico State University, P.O. Box 30001/MSC 3AB, Las Cruces, NM 88003, connell@gis.nmt.edu, connell@gis.nmt.edu

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3HE AND 21NE SURFACE EXPOSURE DATING ALONG THE RIO GRANDE GORGE AND ITS TRIBUTARIES: IMPLICATIONS FOR INCISION RATES AND RIO GRANDE GORGE FORMATION IN SOUTHERN COLORADO AND NORTHERN NEW MEXICO

MIGGINS, Daniel P., U.S. Geological Survey, Denver, CO 80225, RULEMAN, Cal, U.S. Geological Survey, P.O. Box 25046, Denver Federal Center, MS 980, Denver, CO 80225 and MASON, Cody C., U.S. Geological Survey, P.O. Box 25046, Mail Stop 980, Denver, CO 80225, dmiggins@usgs.gov, dmiggins@usgs.gov

4

24

STRUCTURAL SEGMENTATION OF THE RIO GRANDE RIFT: INSIGHTS FROM NUMERICAL MODELS

ESEDO, Raphael and VAN WIJK, Jolante, Earth and Atmospheric Sciences, University of Houston, Houston, TX 77204, raphael_esedo@yahoo.com, raphael_esedo@yahoo.com

5

25

PRELIMINARY KINEMATIC OBSERVATIONS OF LATE CENOZOIC FAULTS AT THE EDGE OF AN INTERBASIN MOUNTAIN BLOCK WITHIN THE CENTRAL COLORADO RIO GRANDE RIFT: MANIFESTATIONS OF AN EXTENSIONAL ACCOMMODATION ZONE?

MINOR, Scott A.¹, CAINE, Jonathan Saul², FRIDRICH, Christopher J.¹ and GRAUCH, V.J.S.², (1)U.S. Geological Survey, Box 25046, DFC, MS 980, Denver, CO 80225, (2)U.S. Geological Survey, Box 25046, DFC, MS 964, Denver, CO 80225, sminor@usgs.gov, sminor@usgs.gov

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TESTING AN ACCOMMODATION-ZONE HYPOTHESIS IN THE NORTHERN RIO GRANDE RIFT: PRELIMINARY INSIGHTS FROM THE GEOLOGY, DEFORMATION STYLE, KINEMATICS, AND AEROMAGNETIC EVIDENCE IN THE PONCHA PASS AREA, COLORADO

FRIDRICH, Christopher J.¹, CAINE, Jonathan Saul², MINOR, Scott A.¹ and GRAUCH, V.J.S.³, (1)U.S. Geological Survey, Box 25046, DFC, MS 980, Denver, CO 80225, (2)U.S. Geological Survey, Box 25046, DFC, MS 964, Denver, CO 80225-0046, (3)U.S. Geological Survey, Box 25046, DFC, MS 964, Denver, CO 80225, fridrich@usgs.gov, fridrich@usgs.gov

7

27

NEW INSIGHTS INTO BASIN GEOMETRY AND RANGE-FRONT FAULTING FROM RECENT GEOPHYSICAL SURVEYS IN NORTHEASTERN SAN LUIS BASIN, RIO GRANDE RIFT, COLORADO

GRAUCH, V.J.S., U.S. Geological Survey, Box 25046, DFC, MS 964, Denver, CO 80225, DRENTH, Benjamin J., U.S. Geological Survey, MS 964 Denver Federal Center, Denver, CO 80225, CAINE, Jonathan Saul, U.S. Geological Survey, Box 25046, DFC, MS 964, Denver, CO 80225-0046, RULEMAN, Chester A., U.S. Geological Survey, Geology and Environmental Change Science Center, Box 25046, MS 980, Denver Federal Center, Denver, CO 80225, LINDSEY, David A., U.S. Geological Survey, Box 25046, Denver Federal Center, MS 973, Denver, CO 80225-0046 and KLEIN, Terry L., U.S. Geological Survey, Central Mineral and Environmental Resources Science Center, Denver Federal Center, P.O. Box 25046, MS 973, Denver, CO 80225-0046, tien@usgs.gov, tien@usgs.gov

8

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PRE-RIFT EXTENSION DEFINED BY NEW MAPPING AND GEOCHRONOLOGY IN THE CIMARRON AND TAOS RANGES OF NORTHERN NEW MEXICO

WORKMAN, Jeremiah B., U.S. Geological Survey, Box 25046, DFC, MS 980, Denver, CO 80225 and PREMO, Wayne R., U.S. Geol Survey, MS 980, P.O. Box 25046, Denver Federal Center, Denver, CO 80225, jworkman@usgs.gov, jworkman@usgs.gov

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INTEGRATED GEOLOGIC, GEOCHRONOLOGIC AND GEOPHYSICAL STUDIES OF THE NORTHEASTERN TAOS PLATEAU, NEW MEXICO, USA—NEW CONSTRAINTS ON THE EVOLUTION OF RIFT STRUCTURES, BASIN EVOLUTION, AND PLIOCENE VOLCANIC ERUPTION HISTORY

THOMPSON, R.a.¹, TURNER, Kenzie J.², COSCA, M.a.³, DRENTH, Benjamin J.⁴, RULEMAN, C.A.⁵ and CONDIT, C.B.¹, (1)U.S. Geological Survey, Box 25046, DFC, MS 980, Denver, CO 80225, (2)U.S. Geol Survey, Denver Federal Center, Denver, CO 80225, (3)USGS, Box 25046, Denver, CO 80225-0046, (4)U.S. Geological Survey, MS 964 Denver Federal Center, Denver, CO 80225, (5)U.S. Geological Survey, P.O. Box 25046, Mail Stop 980, Denver, CO 80225, rathomps@usgs.gov, rathomps@usgs.gov

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COMPOSITION AND TIMING OF VOLCANISM ALONG THE WESTERN MARGIN OF THE TAOS PLATEAU VOLCANIC FIELD, COLORADO AND NEW MEXICO

TURNER, Kenzie J., U.S. Geol Survey, Denver Federal Center, Denver, CO 80225, THOMPSON, Ren A., U.S. Geological Survey, Box 25046, DFC, MS 980, Denver, CO 80225, COSCA, Michael A., USGS, Box 25046, Denver, CO 80225-0046, LEE, John P., United States Geological Survey, MS 973, Denver, CO 80225 and BUDAHN, James R., U.S. Geological Survey, Box 25046, Mail Stop 964, Denver Federal Center, Denver, CO 80225, kturner@usgs.gov, kturner@usgs.gov

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UNDERSTANDING THE COMPLEXITY OF CINDER CONE VOLCANOES USING PALEOMAGNETIC, ROCK MAGNETIC AND STRUCTURAL ANALYSIS; A CASE STUDY FROM THE CIENEGA VOLCANO, CERROS DEL RIO VOLCANIC FIELD, NEW MEXICO

FOUCHER, Marine S., Natural Resources Management, New Mexico Highlands University, Las Vegas, NM 87701, PETRONIS, Michael, Environmental Geology, Natural Resource Managment, New Mexico Highlands University, PO Box 9000, Las Vegas, NM 87701, LINDLINE, Jennifer, Natural Resources Management Department, New Mexico Highlands University, P.O. Box 9000, Las Vegas, NM 87701 and VAN WYK DE VRIES, Benjamin, Laboratoire Magmas et Volcans CNRS, IRD, OPGC, Blaise Pascal University, 5 rue Kessler, Clermont-Ferrand, 63038, France, marine.foucher76@gmail.com, marine.foucher76@gmail.com

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TECTONIC EVOLUTION OF THE WESTERN MARGIN OF THE ESPANOLA BASIN, RIO GRANDE RIFT, NM: ROCK MAGNETIC, PALEOMAGNETIC, AND PETROLOGIC DATA

TRUJILLO, Rhonda, Environmental Geology Program, New Mexico Highlands University, Las Vegas, NM 87701, PETRONIS, Michael, Environmental Geology, Natural Resource Managment, New Mexico Highlands University, PO Box 9000, Las Vegas, NM 87701 and LINDLINE, Jennifer, Natural Resources Management Department, New Mexico Highlands University, P.O. Box 9000, Las Vegas, NM 87701, rhondatrujillo@hotmail.com, rhondatrujillo@hotmail.com

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33

U-SERIES DATING AND STABLE ISOTOPE ANALYSIS OF TRAVERTINE DEPOSITS NEAR PONDEROSA, NM: IMPLICATIONS FOR DEFINING THE EASTERN LIMIT OF THE VALLES OUTFLOW PLUME

SALAZ, Robert E., Department of Earth and Environmental Science, New Mexico Institute of Mining and Technology, 801 Leroy Pl, Socorro, NM 87801, KELLEY, Shari A., New Mexico Bureau of Geology and Mineral Resources, New MexicoTech, 801 Leroy Place, Socorro, NM 87801, WOLDEGABRIEL, Giday, Earth and Environmental Sciences Division, Los Alamos National Laboratory, EES-16/MS D462, Los Alamos, NM 87545 and ALBRECHT, Michael, TBA Power, Inc, 2825 East Cottonwood, Parkway, Suite 500, Salt Lake City, UT 84121-7060, zeke@nmt.edu, zeke@nmt.edu

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DYNAMIC EARTHQUAKE TRIGGERING ABOVE THE SOCORRO MAGMA BODY, NEW MEXICO

MORTON, Emily A. and BILEK, Susan L., Earth and Environmental Science, Geophysics, New Mexico Tech, Socorro, NM 87801, emorton@nmt.edu, emorton@nmt.edu

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35

UNRAVELING ALKALIC MAGMATISM OF THE JEMEZ LINEAMENT: INTERPRETATIONS FROM HYDROUS MINERAL GEOCHEMISTRY AT TWO BUTTES, COLORADO

MAJEWSKI, David, School of the Environment, Washington State University, 1228 Webster Physical Science Building, Pullman, WA 99164, ROWE, Michael C., School of the Environment, Washington State University, 1228 Webster Physical Science Bldg, Pullman, WA 99164-2812 and LARSON, Peter B., School of the Environment, Washington State University, Pullman, WA 99164, david.majewski@wsu.edu, david.majewski@wsu.edu

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VARIATIONS IN MANTLE COMPOSITION INFERRED FROM OLIVINE PHENOCRYST AND XENOCRYST GEOCHEMISTRY FROM THE SOUTHERN RIO GRANDE RIFT, NEW MEXICO

SCOTT, Spenser P. and ROWE, Michael C., School of the Environment, Washington State University, Pullman, WA 99164, spenser.scott100@email.wsu.edu, spenser.scott100@email.wsu.edu

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USING NONSEISMIC GEOPHYSICAL METHODS TO DETERMINE STRUCTURAL CONTROLS WITHIN THE SOUTHERN MESILLA BOLSON, WEST TEXAS AND SOUTHERN NEW MEXICO

MONTANA, Carlos¹, KAIP, Galen M.¹, DOSER, Diane² and BAKER, Luke A.³, (1)Geological Sciences, University of Texas at El Paso, El Paso, TX 79968, (2)Univ Texas - El Paso, El Paso, TX 79968, (3)Geological Sciences, El Paso Community College - Mission del Paso Campus, 10700 Gateway East, C141, El Paso, TX 79927, montana@geo.utep.edu, montana@geo.utep.edu

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LONG-TERM TECTONIC DEFORMATION OF THE SOUTHERN RíO GRANDE RIFT

ARMOUR, L.K., Geology, The University of Texas at El Paso, 500 W University Ave, El Paso, TX 79902 and LANGFORD, Richard P., The University of Texas at El Paso, 500W University Ave, El Paso, TX 79968, pterodactyl3@juno.com, pterodactyl3@juno.com

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HYDROCHEMISTRY OF THE VALLE TOLEDO, VALLES CALDERA, NEW MEXICO

DALE, Michael¹, GRANZOW, Kim², LONGMIRE, Patrick³, ENGLERT, David⁴, REARICK, Michael³ and PERKINS, George³, (1)New Mexico Environment Department, 1183 Diamond Drive, Suite B, Los Alamos, NM 87544, (2)New Mexico Environment Department, Department of Energy Oversight Bureau, 1183 Diamond Drive, Suite B, Los Alamos, NM 87544, (3)Earth and Environmental Sciences Division, Los Alamos National Laboratory, Mail Stop D469, Los Alamos National Laboratory, Los Alamos, NM 87545, (4)New Mexico Environment Department, Department of Energy Oversight Bureau, 2905 Rodeo Park Drive East, Building 1, Santa Fe, NM 87505, michael.dale@state.nm.us, michael.dale@state.nm.us

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CHEMICAL WEATHERING AND SOLUTE FLUX IN THE CRITICAL ZONE: CATCHMENT-SCALE HYDROLOGY IN THE JEMEZ RIVER BASIN, NEW MEXICO AND SANTA CATALINA MOUNTAINS, ARIZONA

DRISCOLL, Jessica M.¹, HARPOLD, Adrian², MCINTOSH, Jennifer³, MEIXNER, Thomas¹, ZAPATA-RIOS, Xavier¹, PORTER, Courtney¹ and HUCKLE, David¹, (1)Hydrology & Water Resources, University of Arizona, 1133 E. North Campus Dr, Tucson, AZ 85721, (2)Instaar, University of Colorado, 1560 39th st, Boulder, CO 80303, (3)Hydrology & Water Resources, University of Arizona, Tucson, AZ 85721, jmd@email.arizona.edu, jmd@email.arizona.edu

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EVALUATING SOLUTE SOURCES IN THE UPPER GILA RIVER, NM

VAKHLAMOV, Pavel¹, CROSSEY, Laura J.¹, DAHM, Clifford N.², ACUNA, Vincenc³ and ALI, Abdul-Mehdi S.¹, (1)Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131, (2)Department of Biology, University of New Mexico, MSC03 2020, 1 University of New Mexico, Albuquerque, NM 87131-0001, (3)Catalan Institute for Water Research, Parc Científic i Tecnològic de la Universitat de Girona, Girona, Spain, pavel.vakhlamov@gmail.com, pavel.vakhlamov@gmail.com

Rocky Mountain Section - 64th Annual Meeting (9–11 May 2012)

T8. Multidisciplinary Studies of the Rio Grande Rift: Basins, Volcanism, Geophysics, and Hydrogeology (Posters)