Cordilleran Section - 108th Annual Meeting (29–31 March 2012)

Session No. 18
Friday, 30 March 2012: 08:30-12:50
Juarez 3 (Hotel Misión Juriquilla)

T1. Silicic Volcanism I

 

Cathy J. Busby and Graham Andrews, Advocates
Paper #
Start Time
1
08:30
SOURCE CHARACTERIZATION OF LP SEISMICITY AT POPOCATEPETL VOLCANO, MEXICO
ARCINIEGA-CEBALLOS, Alejandra1, DAWSON, P.2 and CHOUET, B.2, (1)Departamento de Vulcanología, Instituto de Geofísica, Universidad Nacional Autónoma de México, México D.F, 04510, Mexico, (2)Volcano Science Center, US Geological Survey, Menlo Park, CA 94025, maac@geofisica.unam.mx, maac@geofisica.unam.mx
2
08:50
FLANK COLLAPSE AND NEW RELATIVE INSTABILITY ANALYSIS TECHNIQUES APPLIED TO VOLCÁN DE COLIMA AND MT. ST. HELENS
BORSELLI, Lorenzo and SAROCCHI, Damiano, Instituto de Geología /Fac. Ingeniería, UASLP, Dr. M. Nava No 5, Zona Universitaria, San Luis Potosí, 78240, Mexico, lborselli@gmail.com, lborselli@gmail.com
3
09:10
U/PB DATING OF TUFFS FROM THE ALVERSON VOLCANICS IN THE FOSSIL CANYON AND PAINTED GORGE AREAS OF THE COYOTE MOUNTAINS, WESTERN SALTON TROUGH, CALIFORNIA, USA
MORGAN, J.R., 4671 Lee Avenue, La Mesa, CA 91942-6938, MORGAN, George J., 4671 Lee Avenue, La Mesa, CA 91942 and PECHA, Mark, Department of Geosciences, University of Arizona, Tucson, AZ 85721, jrmorgan07@cox.net, jrmorgan07@cox.net
4
09:30
LADDER DIKES, CRAZY GEOCHEMISTRY, AND LIQUID IMMISCIBILITY(?) IN OTHERWISE SANE GRANODIORITES
GLAZNER, Allen F., Geological Sciences, University of North Carolina, Chapel Hill, NC 27599-3315, BARTLEY, John M., Geology and Geophysics, Univ. of Utah, Salt Lake City, UT 84112, LAW, Bryan, Reno, NV 89523 and COLEMAN, Drew S., Department of Geological Sciences, University of North Carolina, 107 Mitchell Hall CB 3315, Chapel Hill, NC 27599-3315, afg@unc.edu, afg@unc.edu
5
09:50
EXPLOSIVE ERUPTION HISTORY AND STRUCTURE OF A LARGE SILICIC PIECEMEAL CALDERA: LOS HUMEROS, CENTRAL MEXICO
CARRASCO-NÚÑEZ, Gerardo1, WILLCOX, Christopher2, DÁVILA-HARRIS, Pablo1 and BRANNEY, Michael J.2, (1)Centro de Geociencias, Universidad Nacional Autónoma de México, Campus Juriquilla, Boulevard Juriquilla 3001, Querétaro, 76230, Mexico, (2)Department of Geology, University of Leicester, Leicester, LE1 7RH, United Kingdom, gerardoc@geociencias.unam.mx, gerardoc@geociencias.unam.mx
6
10:10
PROGRESSIVE CONSTRUCTION OF A BATHOLITH UNDER THE TILZAPOTLA-TAXCO REGION, SOUTHERN MEXICO, IN LATE EOCENE TIME
MARTINY, Barbara M.1, MORÁN-ZENTENO, Dante J.2, DE SILVA, Shanaka3, ZUÑIGA-LAGUNES, Lilibeth4, FLORES-HUERTA, Diana4, SOLARI, Luigi5, MARTÍNEZ-LÓPEZ, Margarita6, ROBERGE, Julie7 and GONZÁLEZ-TORRES, Enrique A.2, (1)Instituto de Geología, Universidad Nacional Autonoma de Mexico, Mexico City, 04510, Mexico, (2)Instituto de Geología, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico, (3)College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, 104 CEOAS Admin. Bldg, Corvallis, OR 97331, (4)Facultad de Ingenieria, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico, (5)Centro de Geociencias, Universidad Nacional Autónoma de México, Juriquilla, Queretaro, 76230, Mexico, (6)Centro de Investigacion Cientifica y de Educacion Superior de Ensenada, Ensenada, Baja California, 22860, Mexico, (7)Instituto de Geología, Universidad Nacional Autonoma de Mexico, Ciudad Universitaria, México, D.F, 04510, Mexico, martiny@unam.mx, martiny@unam.mx
 
10:30
Break
7
10:50
KEYNOTE: TIMING OF INTENSE MAGMATIC EPISODES IN THE NORTHERN AND CENTRAL SIERRA MADRE OCCIDENTAL, WESTERN MEXICO
MCDOWELL, Fred W., Geological Sciences, Jackson School of Geosciences, The Univ of Texas at Austin, Austin, TX 78712 and MCINTOSH, William, New Mexico Bureau of Geology and Mineral Resources, New Mexico Tech, 801 Leroy Place, Socorro, NM 87801, mcdowell@mail.utexas.edu, mcdowell@mail.utexas.edu
8
11:20
THE CENOZOIC IGNIMBRITE FLAREUP IN WESTERN NORTH AMERICA: DISTRIBUTION, TIMING, VOLUME, AND TECTONIC RELATIONS
HENRY, Christopher D., Nevada Bureau of Mines and Geology, University of Nevada, Reno, NV 89557, MCINTOSH, William C., Socorro, NM 87801, MCDOWELL, Fred W., Geological Sciences, Jackson School of Geosciences, The Univ of Texas at Austin, Austin, TX 78712, LIPMAN, Peter W., U.S. Geological Survey, MS910, 345 Middlefield Rd, Menlo Park, CA 94025 and CHAPIN, Charles E., New Mexico Bureau of Geology, New Mexico Institute of Mining and Technology, Socorro, NM 87801, chenry@unr.edu, chenry@unr.edu
9
11:40
INSIGHTS INTO THE GROWTH OF SILICIC MAGMA SYSTEMS FROM THE GEOCHRONOLOGIC, ELEMENTAL, AND ISOTOPIC RECORD OF ZIRCON IN MIOCENE PLUTONS AND VOLCANIC ROCKS OF THE COLORADO RIVER EXTENSIONAL CORRIDOR, NEVADA
MILLER, Jonathan1, RYAN, Mark1, MILLER, Calvin2, CLAIBORNE, Lily L.2, JOHNSON, Brent1, COLOMBINI, Lindy L.S.2, WOODEN, Joseph L.3, WALKER Jr, Barry A.4 and LIDZBARSKI, Marsha1, (1)Department of Geology, San Jose State University, San Jose, CA 95192-0102, (2)Department of Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235, (3)Geological and Environmental Sciences, Stanford University, Stanford, CA 94305, (4)Geosciences, Oregon State University, Corvallis, OR 97330, Jonathan.Miller@sjsu.edu, Jonathan.Miller@sjsu.edu
10
12:00
REINVIGORATING STAGNANT SILICIC MAGMA SYSTEMS: VOLCANIC AND PLUTONIC VIEWS
MILLER, Calvin F.1, PADILLA, Abraham De Jesus1, PAMUKCU, Ayla1, CARLEY, Tamara L.1, CLAIBORNE, Lily L.1, FLANAGAN, Daniel M.1, GUALDA, Guilherme A.R.1, WOODEN, Joseph L.2, MILLER, Jonathan3 and LIDZBARSKI, Marsha3, (1)Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235, (2)Geological and Environmental Sciences, Stanford University, Stanford, CA 94305, (3)Department of Geology, San Jose State University, San Jose, CA 95192-0102, calvin.miller@vanderbilt.edu, calvin.miller@vanderbilt.edu
11
12:20
MAGMA DYNAMICS OF THE CERRO BLANCO VOLCANIC COMPLEX, ARGENTINA, BASED ON VOLATILES, MAJOR AND TRACE ELEMENTS IN MELT INCLUSIONS
ROBERGE, Julie1, DE SILVA, Shanaka2, VIRAMONTE, Jose G.3, ARNOSIO, Marcelo3 and BECCIO, Raúl3, (1)Instituto de Geología, Universidad Nacional Autonoma de Mexico, Ciudad Universitaria, México, D.F, 04510, Mexico, (2)College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, 104 CEOAS Admin. Bldg, Corvallis, OR 97331, (3)Instituto GEONORTE and CONICET, Universidad Nacional de Salta, Av. Bolivia 5150, Salta, 4400, Argentina, robergejulie@gmail.com, robergejulie@gmail.com
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