Rocky Mountain (66th Annual) and Cordilleran (110th Annual) Joint Meeting (19–21 May 2014)

Session No. 23
Tuesday, 20 May 2014: 1:00 PM-5:00 PM
Procrastinator Theater (Montana State University)

T10. The Early Tertiary Magmatic Firestorm of the U.S. and Canadian Cordillera: Geochemical, Petrological, and Tectonic Constraints

 

Richard M. Gaschnig and Genet I. Duke, Advocates
Paper #
Start Time
1
1:00 PM
RAPID BUILDUP OF THE CHEMICALLY DIVERSE ALEUTIAN RIDGE IN THE EOCENE
KAY, Suzanne Mahlburg1, JICHA, Brian R.2, TIBBETTS, Ashley1 and KAY, Robert W.1, (1)EAS, Cornell University, Ithaca, NY 14853, (2)Department of Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St, Madison, WI 53706, smk16@cornell.edu, smk16@cornell.edu
2
1:20 PM
RAPID EMPLACEMENT OF THE GOLDEN HORN BATHOLITH: NORTH CASCADES, WA
EDDY, Michael P.1, BOWRING, Samuel A.1, MILLER, Robert B.2 and TEPPER, Jeffrey H.3, (1)Earth, Atmospheric, and Planetary Sciences Department, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, (2)Department of Geology, San José State University, One Washington Square, San Jose, CA 95192-0102, (3)Geology Dept, University of Puget Sound, 1500 N. Warner St, Tacoma, WA 98416-1048, mpeddy@mit.edu, mpeddy@mit.edu
3
1:40 PM
CRETACEOUS VS. EOCENE MAGMATISM IN NE WASHINGTON AND IDAHO:  PETROLOGIC COMPARISONS, TEMPORAL TRENDS, AND TECTONIC INFERENCES
TEPPER, Jeffrey H., Geology Dept, University of Puget Sound, 1500 N. Warner St, Tacoma, WA 98416-1048 and LOEWEN, Matthew W., Dept of Geological Sciences, University of Oregon, Eugene, OR 97403-1272, jtepper@pugetsound.edu, jtepper@pugetsound.edu
4
2:00 PM
GEOLOGIC EVOLUTION OF THE MIDDLE EOCENE WILDCAT MOUNTAIN CALDERA, CENTRAL OREGON, USA
MCCLAUGHRY, Jason D., Oregon Department of Geology and Mineral Industries, 1995 3rd Street, Suite 130, Baker City, OR 97814, FERNS, Mark L., College of Arts and Sciences, Eastern Oregon University, La Grande, OR 97850-2899 and GORDON, Caroline L., Ochoco National Forest, 3160 NE 3rd Street, Prineville, OR 97754, jmcclaughry@dogami.state.or.us, jmcclaughry@dogami.state.or.us
5
2:20 PM
EOCENE VOLCANIC STRATIGRAPHY AND TERTIARY FAULT GEOMETRY OF THE SOUTHERN DEER LODGE VALLEY, SW MONTANA
SCARBERRY, Kaleb C. and SMITH, M. Garrett, Montana Bureau of Mines and Geology, Montana Tech University, 1300 W Park Street, Butte, MT 59701, kscarberry@mtech.edu, kscarberry@mtech.edu
 
2:40 PM
Break
6
3:00 PM
NEW AGE AND GEOCHEMICAL CONSTRAINTS ON THE EOCENE GARNET RANGE VOLCANIC FIELD, WEST-CENTRAL MONTANA
MOSOLF, Jesse G.1, MCDONALD, Catherine1, COTTLE, John M.2 and KYLANDER-CLARK, Andrew R.C.3, (1)Montana Bureau of Mines and Geology, Montana Tech, 1300 W. Park Street, Butte, MT 59701, (2)Department of Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93106, (3)Department of Earth Science, University of California, Santa Barbara, CA 93106, jmosolf@mtech.edu, jmosolf@mtech.edu
7
3:20 PM
Withdrawn
8
3:40 PM
EARLY TERTIARY MAGMATISM IN THE BLACK HILLS, USA
DUKE, Genet I., Geology, Arkansas Tech University, 1701 N. Boulder Avenue, Russellville, AR 72801, FROST, Carol D., Department of Geology and Geophysics, University of Wyoming, Dept. 3006, 1000 University Avenue, Laramie, WY 82071, SINGER, Brad S., Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St, Madison, WI 53076 and CARLSON, Richard W., Department of Terrestrial Magnetism, Carnegie Institution of Washington, 5241 Broad Branch Road, NW, Washington, DC, DC 20015-1305, gduke1@atu.edu, gduke1@atu.edu
9
4:00 PM
ZIRCON XENOCRYST EVIDENCE OF MAGMATIC MOBILIZATION AND HOMOGENIZATION OF EAST CENTRAL NEVADA DEEP CRUST DURING THE EOCENE MAGMATIC SWEEP
GOTTLIEB, Eric S., Geological and Environmental Sciences, Stanford University, Stanford, CA 94305 and MILLER, Elizabeth L., Department of Geological Sciences, Stanford University, Stanford, CA 94305, esgeo@stanford.edu, esgeo@stanford.edu
10
4:20 PM
ORIGIN OF GEOCHEMICAL DIVERSITY WITHIN AND BETWEEN ERUPTIVE SYSTEMS, SOUTHERN CASCADE VOLCANIC RANGE, CALIFORNIA
ROCKENTINE, Nicole1, HART, William K.1 and MERTZMAN, Stanley A.2, (1)Department of Geology, Miami University, 250 S. Patterson Avenue, 114 Shideler Hall, Oxford, OH 45056, (2)Earth and Environment, Franklin and Marshall College, P.O. Box 3003, Lancaster, PA 17604-3003, Rockenne@miamioh.edu, Rockenne@miamioh.edu
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