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GSA Annual Meeting in Phoenix, Arizona, USA - 2019

Session No. 78
Monday, 23 September 2019: 8:00 AM-12:00 PM
Room 132ABC, North Building (Phoenix Convention Center)

T37. Investigating the Origin of Arc Magmatism and the Evolution of Continental Crust from the Aleutians to the Southern Andes: In Honor of Suzanne Mahlburg Kay, Recipient of the Mineralogy, Geochemistry, Petrology, and Volcanology Division Distinguished Geological Career Award

GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA History and Philosophy of Geology Division

 

C. Brenhin Keller, Brian R. Jicha and Matthew Gorring, Advocates
Paper #
Start Time
 
8:00 AM
Citation and Presentation of the MGPV Distinguished Geological Career Award to Suzanne M. Kay
 
8:10 AM
Response and Lecture by Suzanne M. Kay: A Tale of Two Volcanic Arcs – the Aleutians and the Central and Southern Andes
78-1
8:30 AM
TEMPORAL EVOLUTION OF CONTINENTAL CRUST COMPOSITION: IMPLICATIONS FOR THE START OF PLATE TECTONICS (Invited Presentation)
RUDNICK, Roberta L., Department of Earth Science and Earth Research Institute, University of California Santa Barbara, Santa Barbara, CA 93106
78-2
8:50 AM
THE COASTAL BATHOLITH OF PERU: INSIGHTS FROM STABLE ISOTOPES
HOLK, Gregory J.1, CLAUSEN, Benjamin L.2, GONZALES, Luciano3, PORRAS, Orlando P.4, CHEN, Julia5, GUITERREZ, Joseph6, LANDEROS, Joseph1 and LAVERING, Riley5, (1)Department of Geological Sciences and IIRMES, California State Univ Long Beach, 1250 Bellflower Blvd, Long Beach, CA 90840, (2)Geoscience Research Institute, Department of Earth and Biological Sciences, Loma Linda University, Loma Linda, CA 92350, (3)Physica Y Mathematicas, Universidad de Montemorelos, Montemorelos, NL CP 67530, Mexico, (4)Faculty of Engineering and Architecture, Universidad Peruana Union, Ñaña, Lima, Km19, Peru, (5)Department of Geological Sciences and IIRMES, California State University, Long Beach, 1250 Bellflower Blvd., Long Beach, CA 90840-3902, (6)Geological Sciences, California State University, Fullerton, Fullerton, CA 92831
78-3
9:05 AM
INSIGHTS INTO TRANSCRUSTAL PROCESSES BENEATH CONTINENTAL MONOGENETIC VOLCANOES FROM MINOR CENTERS ON THE BOLIVIAN ALTIPLANO
MCLEOD, Claire1, DAVIDSON, Jon2, DE SILVA, Shanaka3 and VELAZQUEZ SANTANA, Liannie C.1, (1)Department of Geology and Environmental Earth Science, Miami University, Oxford, OH 45056, (2)Earth Sciences, Durham University, Durham, DH1 3LE, United Kingdom, (3)College of Earth, Ocean, and Atmospheric Sciences, Oregon State Univeristy, 104 CEOAS Administration Building, Corvallis, OR 97331
78-4
9:20 AM
UPPER CRUSTAL ASSIMILATION-FRACTIONAL CRYSTALLIZATION IN THE NEOGENE CENTRAL ANDES - A MODEL FOR CONTINENTAL SILICIC VOLCANO-PLUTONIC PROVINCES (Invited Presentation)
DE SILVA, Shanaka, College of Earth, Ocean, and Atmospheric Sciences, Oregon State Univeristy, 104 CEOAS Administration Building, Corvallis, OR 97331
78-5
9:40 AM
UNDERSTANDING THE DEEP MAGMATIC PROCESSES CONTROLLING THE EARLY EVOLUTION OF ARC MAGMAS: A COMPARISON OF THE CENTRAL VOLCANIC ZONE IN NORTHERN CHILE WITH THE ALEUTIAN ISLAND ARC
BURNS, Dale, School of Earth, Energy, and Environmental Sciences, Stanford University, 450 Serra Mall, Stanford, CA 94305 and DE SILVA, Shanaka L., College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, 104 CEOAS Admin Bldg., Corvallis, OR 97331
78-6
9:55 AM
BOLIVIAN CUMULATE HORNBLENDITE ENCLAVES: INSIGHTS INTO THE DEPTHS OF CENTRAL ANDEAN ARC MAGMATIC SYSTEMS
VELAZQUEZ SANTANA, Liannie C., Department of Geology and Environmental Earth Science, Miami University, 250 S. Patterson Ave., Oxford, OH 45056, MCLEOD, Claire, Department of Geology & Environmental Earth Sciences, Miami University, Oxford, OH 45056, BLAKEMORE, Daniel, Department of Geology & Environmental Earth Sciences, Miami University, 250 S. Patterson Avenue, 118 Shideler Hall, Oxford, OH 45056 and SHAULIS, Barry, Department of Geosciences, University of Arkansas, 340 N. Campus Dr., 216 Gearhart Hall, Fayetteville, AR 72701
78-7
10:10 AM
BLOWING IN THE MANTLE WIND: MIGRATION OF CORDILLERAN ARCS FROM THE ALEUTIANS TO THE SOUTHERN ANDES
SPENCER, Christopher J., School of Earth and Planetary Sciences, Curtin University, Kent Street, Perth, 6102, Australia, MURPHY, J. Brendan, Earth Sciences, St. Francis Xavier University, Box 1623, Nova Scotia, Antigonish, WA B2G 2W5, Australia, HOILAND, Carl W., Department of Geological Sciences, Stanford University, Stanford, CA 94305, JOHNSTON, Stephen, Earth and Atmospheric Sciences, University of Alberta, 1-26 Earth Sciences, Edmonton, AB T6G2E9, Canada, MITCHELL, Ross, Applied Geology, B312, Curtin University, Bentley, WA 6102, Bentley, WA, 6102, Australia and COLLINS, William J., 3Department of Geological Sciences, Stanford University, 450 Serra Mall, Stanford, WA 94305, Australia
78-8
10:25 AM
IMPLICATIONS OF THORIUM EXCESSES AND HIGH 230TH IN SEAFLOOR LAVAS OF THE WESTERN ALEUTIAN ARC (Invited Presentation)
YOGODZINSKI, Gene, School of Earth, Ocean, and Environment, University of South Carolina, Columbia, SC 29208, SIMS, Kenneth W.W., Department of Geology and Geophysics, University of Wyoming, Laramie, WY 82071, KELEMEN, Peter, Lamont Doherty Earth Observatory, Columbia University, Palisades, NY 10964, HOERNLE, Kaj, GEOMAR Helmholtz Center, Kiel, 24148, Germany, SCOTT, Sean Ross, Geology and Geophysics, University of Wyoming, 1000 E University Ave, Laramie, WY 82072 and WYATT, Chris, Alaska Division of Geology & Geophysics, Fairbanks, AK 99709
78-9
10:45 AM
A COMPARISON OF MIDDLE CRUST FORMED IN ISLAND ARC AND CONTINENTAL MARGIN SETTINGS FROM THE ALASKA RANGE
TODD, Erin and JONES III, James V., U.S. Geological Survey, Alaska Science Center, 4210 University Drive, Anchorage, AK 99508
78-10
11:00 AM
NEW 40AR/39AR AGE CONSTRAINTS FROM EXTENSIVE DREDGING OF MURRAY CANYON, WESTERN ALEUTIANS
JICHA, Brian1, YOGODZINSKI, Gene2, HOERNLE, Kaj3, HAUFF, Folkmar3, PORTNYAGIN, Maxim3, WERNER, Reinhard3 and BEZARD, Rachel4, (1)Dept of Geoscience, Dept of Geoscience, 1215 W Dayton St, Madison, WI 53706, (2)School of Earth, Ocean, and Environment, University of South Carolina, Columbia, SC 29208, (3)GEOMAR Helmholtz Center, Kiel, 24148, Germany, (4)Department of Geoscience, Tuebingen University, Tuebingen, 72074, Germany
78-11
11:15 AM
HICKS BUTTE COMPLEX, CENTRAL CASCADES, WASHINGTON: A RECORD OF LATE JURASSIC ISLAND ARC FORMATION AND SUBSEQUENT CRETACEOUS ADAKITE GENERATION FROM ARC ROOT MELTING
MACDONALD Jr., James H., Marine & Ecological Sciences, Florida Gulf Coast University, 10501 FGCU Blvd South, Ft. Myers, FL 33965, DAVIS, Peter B., Department of Geosciences, Pacific Lutheran University, Tacoma, WA 98447 and PECHA, Mark, Department of Geosciences, University of Arizona, Gould-Simpson Building #77, 1040 E 4th St, Tucson, AZ 85721
Handouts
  • MacDonald et al 2019 GSA talk.pptx (20.3 MB)
    • 78-12
    11:30 AM
    CHANNEL FLOW HYPOTHESIS FOR K-PG MAGMATISM IN WESTERN MONTANA AND IDAHO
    LAGESON, David R., Earth Sciences, Montana State University, 226 Traphagen Hall, Bozeman, MT 59717, KALAKAY, Thomas J., Rocky Mountain College, 1511 Poly Drive, Billings, MT 59102-1739 and FOSTER, David A., Department of Geological Sciences, University of Florida, Gainesville, FL 32611-2120
    78-13
    11:45 AM
    AN OLDER NEWBERRY? THE PLEISTOCENE DOMES AND FLOWS OF THE CENTRAL OREGON EASTERN HIGH CASCADES
    QUEVY, Amber L., Kimbell School of Geosciences, Midwestern State University, 3410 Taft Blvd., Wichita Falls, TX 76308 and PRICE, Jonathan D., Kimbell School of Geosciences, Midwestern State University, Wichita Falls, TX 76308
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