Cordilleran Section - 115th Annual Meeting - 2019

Session No. 33
Friday, 17 May 2019: 8:00 AM-12:00 PM
Room C124 (Oregon Convention Center)

T15. Magmatism in the Cascades: Variations in Space and Time

 

Adam J.R. Kent, John Dilles and Anita L. Grunder, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
8:05 AM
MAGMATISM IN THE CASCADES: GEOCHEMICAL VARIATIONS ALONG A NORTH SOUTH TRANSECT
WEIS, Dominique, Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, 2020-2207 Main Mall, Vancouver, BC V6T-1Z4, Canada
8:35 AM
VARIATIONS IN MANTLE COMPOSITION AND SUBDUCTION CONTRIBUTIONS TO MAFIC MAGMAS IN THE SOUTHERN CASCADE ARC
JOHNSON, Emily R.1, SHAFFER, Jamie2, COLE, Meredith A.3, RAMOS, Frank C.1, BINDEMAN, Ilya N.4 and CALVERT, Andrew T.5, (1)Department of Geological Sciences, New Mexico State University, PO Box 30001, MSC 3AB, Las Cruces, NM 88003, (2)Department of Geological Sciences, New Mexico State University, Dept. Geological Sciences/MSC 3AB New Mexico State University, P.O. Box 30001, Las Cruces, NM 88003, (3)Department of Geology, University at Buffalo, Buffalo, NY 14260, (4)Earth Sciences, University of Oregon, Eugene, OR 97403, (5)US Geological Survey, 345 Middlefield Rd, MS-937, Menlo Park, CA 94025
8:55 AM
MAGMATIC DIVERSITY IN THE BORING VOLCANIC FIELD, PORTLAND BASIN, OREGON AND WASHINGTON: IMPLICATIONS FOR SUBDUCTION ZONE MAGMATISM
LEEMAN, William P., Department of Earth and Planetary Sciences, Rice University, Houston, TX 77005, EVARTS, Russell C., U.S. Geological Survey, Menlo Park, CA 94025, CONREY, Richard M., Geosciences Department, Hamilton College, Clinton, NY 13323 and STRECK, Martin J., Department of Geology, Portland State University, 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97207-0751
9:15 AM
DIVERGENCE OF GEOCHEMICAL TRACERS IN ANDESITIC SUITES FROM AMBIENT BASALT OVER ~3 M.Y. OF ACTIVITY AT THE GOAT ROCKS VOLCANIC COMPLEX, CASCADE ARC, WASHINGTON
WALL, Kellie T.1, GRUNDER, Anita L.1 and WEIS, Dominique2, (1)College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, (2)Earth, Ocean and Atmospheric Sciences, University of British Columbia, Pacific Centre for Isotopic and Geochemical Research, 2020-2207 Main Mall, Vancouver, BC V6T 1Z4, Canada
9:35 AM
PETROLOGIC LINKAGES BETWEEN CONTEMPORANEOUS ASH-FLOW TUFFS AT NEWBERRY VOLCANO, CENTRAL OREGON
TEMPLETON, Jeffrey H., Dept. of Earth and Physical Science, Western Oregon University, 345 N. Monmouth Ave, Monmouth, OR 97361
 
9:55 AM
Break
10:10 AM
RESPONSE OF A THICK CONTINENTAL ARC TO CHANGING TECTONIC REGIMES: A REVIEW OF THE EVOLUTION OF THE CRYSTALLINE CORE OF THE NORTH CASCADES, WASHINGTON
MILLER, Robert B., Department of Geology, San Jose State University, One Washington Square, San Jose, CA 95192 and GORDON, Stacia M., Department of Geological Sciences, University of Nevada, Reno, 1664 N. Virginia St, MS0172, Reno, NV 89557
10:40 AM
GEOCHEMISTRY OF CENOZOIC PLUTONIC ROCKS IN THE WESTERN CASCADES: TRACERS OF ARC EVOLUTION & ORE GENESIS
UTEVSKY, Elinor S., College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, CEOAS Admin 104, Corvallis, OR 97331-5503, DILLES, John H., College of Earth, Ocean & Atmospheric Sciences, Oregon State University, CEOAS Admin 104, Corvallis, OR 97331-5503, OLSON III, Nansen H., College of Earth, Ocean & Atmospheric Sciences, Oregon State University, 104 CEOAS Admin, Corvallis, OR 97331 and KENT, Adam J.R., College of Earth, Ocean, and Atmospheric, Sciences, Oregon State University, Corvallis, OR 97331
11:00 AM
LOWER MIOCENE WESTERN CASCADE AND UPPER MIOCENE TO QUATERNARY HIGH CASCADE VOLCANISM IN SOUTHWESTERN OREGON
D'ALLURA, Jad Alan1, CARLINI, Dylan V.2 and SWEETLAND, Alec2, (1)STEM Division, Chemistry Department, Southern Oregon University, 1250 Siskiyou Blvd., Ashland, OR 97520, (2)University of Oregon, Eugene, OR 97504
11:20 AM
THE INITIATION OF VOLCANIC ERUPTIONS IN THE CASCADE RANGE
KENT, Adam J.R., College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, TILL, Christy B., School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287 and COOPER, Kari M., Earth and Planetary Sciences, UC Davis, 1 Shields Ave, Davis, CA 95616
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