GSA Annual Meeting in Denver, Colorado, USA - 2016

Session No. 47
Sunday, 25 September 2016: 1:30 PM-5:30 PM
Room 205 (Colorado Convention Center)

T154. Recent Advances in Understanding Magmatism along and within the Northern North American Cordillera

GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; Geochemical Society; GSA Structural Geology and Tectonics Division
Matthew E. Brueseke, Jeff Benowitz, Jeffrey M. Trop and Paul W. Layer, Advocates
1:30 PM
A LINK BETWEEN PALEO-PACIFIC SUBDUCTION AND ARC MAGMATISM ALONG THE MARGIN OF NORTH AMERICA IN THE BROOKS RANGE, ARCTIC ALASKA: REVEALED BY THE SEDIMENTS OF THE YUKON KOYUKUK BASIN (AK)
O'BRIEN, Tim M.1, MILLER, Elizabeth L.1, PEASE, Victoria2, HOURIGAN, Jeremy3, FISHER, Christopher M.4, VERVOORT, Jeff D.5 and HAYDEN, Leslie A.6, (1)Department of Geological Sciences, Stanford University, Stanford, CA 94305, (2)Geology and Geochemistry, Stockholm University, Stockholm, SE-106 91, Sweden, (3)Earth and Planetary Sciences, University California Santa Cruz, Santa Cruz, CA 94305, (4)School of the Environment, Washington State University, Pullman, WA 99164, (5)School of the Environment, Washington State University, P.O. Box 642812, Pullman, WA 99164, (6)U.S. Geological Survey, Menlo Park, CA 94025, timothy3@stanford.edu
1:45 PM
MESOZOIC-CENOZOIC MAGMATIC HISTORY OF THE ALASKA RANGE SUTURE ZONE
BENOWITZ, Jeff1, TROP, Jeffrey M.2, COLE, Ronald B.3, LAYER, Paul W.1, O'SULLIVAN, Paul B.4, ROESKE, Sarah M.5 and BRUESEKE, Matthew6, (1)Geophysical Institute and Geochronology Laboratory, University of Alaska Fairbanks, Fairbanks, AK 99775, (2)Department of Geology and Environmental Geosciences, Bucknell University, 1 Dent Drive, Lewisburg, PA 17837, (3)Department of Geology, Allegheny College, 520 N. Main St, Box 37A, Meadville, PA 16335, (4)GeoSep Services, 1521 Pine Cone Road, Moscow, ID 87872-9709, (5)Department of Earth and Planetary Sciences, University of California, Davis, Davis, CA 95616, (6)Department of Geology, Kansas State University, 108 Thompson Hall, Manhattan, KS 66506, jbenowitz@alaska.edu
2:00 PM
ZIRCON AGES AND COMPOSITIONS CONSTRAIN CHANGES IN MELT SOURCES DURING AND AFTER PROGRESSIVE ACCRETION OF THE WRANGELLIA COMPOSITE TERRANE TO THE SOUTHERN ALASKA MARGIN (Invited Presentation)
TODD, Erin, U.S. Geological Survey, Alaska Science Center, 4210 University Drive, Anchorage, AK 99508, JONES III, James V., Geological Survey of Canada, 1500 - 605 Robson Street, Vancouver, BC V6B5J3, Canada and KYLANDER-CLARK, Andrew, Department of Earth Science, University of California, Santa Barbara, CA 93106, etodd@usgs.gov
2:20 PM
MAGMATISM AND OROGENIC CYCLES IN SOUTH-CENTRAL ALASKA:  INSIGHTS FROM ZIRCON U-PB-HF, WHOLE ROCK ND-ISOTOPE AND GEOCHEMICAL DATA, AND FIELD OBSERVATIONS (Invited Presentation)
COLE, Ronald B., Department of Geology, Allegheny College, 520 N. Main St, Box 37A, Meadville, PA 16335, CHUNG, Sun-Lin, Department of Geosciences, National Taiwan University, Taipei, Taiwan, BIRSIC, Erin, Dept of Geology, Allegheny College, 520 N. Main Street, Meadville, PA 16335, HUNG, Chien-Hui, Department of Geosciences, National Taiwan University, PO Box 13-318, Taipei, 106, Taiwan, YANG, Jin-Hui, Institute of Geology and Geophysics, Chinese Academy of Sciences, P.O. Box 9825, Beijing, 100029, China and TAKACH, Marie K., Department of Geology, Allegheny College, 520 N Main St, Meadville, PA 16335, ron.cole@allegheny.edu
2:40 PM
~26 MILLION YEARS OF SLAB-EDGE MAGMATISM: NEW GEOCHEMICAL CONSTRAINTS ON THE WRANGELL ARC, ALASKA
BRUESEKE, Matthew E.1, TROP, Jeffrey M.2, BENOWITZ, Jeff3, BERKELHAMMER, Samuel E.1, DAVIS, Kailyn3, LAYER, Paul W.3 and MORTER, Bethany K.1, (1)Department of Geology, Kansas State University, 108 Thompson Hall, Manhattan, KS 66506, (2)Department of Geology and Environmental Geosciences, Bucknell University, 1 Dent Drive, Lewisburg, PA 17837, (3)Geophysical Institute and Geochronology Laboratory, University of Alaska Fairbanks, Fairbanks, AK 99775, brueseke@ksu.edu
2:55 PM
LATE TRIASSIC TO MIDDLE JURASSIC MAGMATISM IN THE INTERMONTANE TERRANES OF YUKON
COLPRON, Maurice, Yukon Geological Survey, P.O. Box 2703 (K-14), Whitehorse, YT Y1A 2C6, Canada, SACK, Patrick J., Yukon Geological Survey, P.O. Box 2703 (K-102), Whitehorse, YT Y1A 2C6, Canada, CROWLEY, James L., Department of Geosciences, Boise State University, Boise, ID 83725 and ALLAN, Murray M., Mineral Deposit Research Unit, University of British Columbia, 2020 - 2207 Main Mall, Vancouver, BC V6T1Z4, Canada, maurice.colpron@gov.yk.ca
 
3:10 PM
Break
3:25 PM
ORIGINS OF MAGMATISM IN THE NORTHERN AND SOUTHERN CORDILLERAN VOLCANIC PROVINCES (NCVP AND SCVP) OF WESTERN CANADA
EDWARDS, Benjamin R., Department of Earth Sciences, Dickinson College, 28 N. College Street, Carlisle, PA 17013, RUSSELL, J. Kelly, Earth and Ocean Sciences, University of British Columbia, 6339 Stores Rd, Vancouver, BC V6T 1Z4, Canada and ANDREWS, Graham D.M., Department of Geology and Geography, West Virginia University, Brooks Hall, 98 Beechurst Ave, Morgantown, WV 26506, edwardsb@dickinson.edu
3:40 PM
BRITISH COLUMBIA COAST MOUNTAINS METASEDIMENTARY ROCKS: AGE CONSTRAINTS AND PROVENANCE
DAFOV, Michelle Nikolay, Geosciences, Gould Simpson, 1040 e 4th st, Tucson, AZ 85719, mdafov@email.arizona.edu
3:55 PM
EOCENE A-TYPE MAGMATISM IN THE NORTHERN U.S. CORDILLERA – FARALLON ROLLBACK, SLAB WINDOW, OR COLLISION?  EVIDENCE FROM THE SAWTOOTH BATHOLITH, IDAHO
FOSTER, David A.1, DUTROW, Barbara L.2, MUELLER, Paul A.1 and MA, Chong3, (1)Department of Geological Sciences, University of Florida, 241 Williamson Hall, Gainesville, FL 32611, (2)Department of Geology & Geophysics, Louisiana State University, Baton Rouge, LA 70803, (3)Department of Geosciences, Auburn University, 2050 Beard-Eaves Coliseum, Gainesville, FL 36849, dafoster@ufl.edu
4:10 PM
BEFORE AND AFTER A SUPERVOLCANO: REU INVESTIGATIONS OF THE EVOLUTION OF MAGMATISM IN THE SOUTHERN BLACK MOUNTAINS VOLCANIC CENTER, AZ, SURROUNDING THE PEACH SPRING TUFF SUPERERUPTION
CLAIBORNE, Lily L.1, MILLER, Calvin F.1, LANG, Nicholas P.2, CRIBB, J. Warner3, MCDOWELL, Susanne M.4 and FOLEY, Michelle L.1, (1)Department of Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235, (2)Department of Geology, Mercyhurst University, Erie, PA 16546, (3)Geosciences, Middle Tennessee State Univ, PO Box 9, Murfreesboro, TN 37132, (4)Dallas, TX 47243, lily.claiborne@vanderbilt.edu
4:25 PM
VOLCANIC STRATIGRAPHY AND TECTONIC SETTING OF THE SILETZIA LARGE IGNEOUS PROVINCE IN WASHINGTON AND VANCOUVER ISLAND
EDDY, Michael P., Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, CLARK, Kenneth P., Geology Department, University of Puget Sound, 1500 N. Warner Street, Tacoma, WA 98416 and POLENZ, Michael, Washington Department of Natural Resources, Division of Geology and Earth Resources, 1111 Washington St SE, MS 47007, Olympia, WA 98504-7007, mpeddy@mit.edu
4:40 PM
SPATIAL AND TEMPORAL CHANGES IN SOURCES OF MESOZOIC ARC PLUTONS IN THE WHITE-INYO RANGE, CALIFORNIA, USA
GAMMEL, Elizabeth M., Geological Sciences, University of Missouri, 101 Geological Sciences Bldg, Columbia, MO 65211 and NABELEK, Peter I., Department of Geological Sciences, University of Missouri, 101 Geology Building, Columbia, MO 65211, emg5y7@mail.missouri.edu
See more of: Technical Sessions