Session: Mapping the West: Understanding of the Geologic History of Volcanic Terranes (Posters) (GSA Connects 2021 in Portland, Oregon)

Session No. 196

Tuesday, 12 October 2021: 2:30 PM-6:30 PM

Exhibit Hall A (Oregon Convention Center)

T17. Mapping the West: Understanding of the Geologic History of Volcanic Terranes (Posters)

Geochemical Society; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division

Authors will be present from 4 to 6 PM.

Paper #

Booth #

196-1

159

PRELIMINARY GEOLOGIC MAP OF THE COLUMBIA RIVER GORGE NATIONAL SCENIC AREA, OREGON AND WASHINGTON

CANNON, Charles¹, ANDERSON, James², EVARTS, Russell C.³, O'CONNOR, Jim E.¹, WELLS, Ray¹, WOODRING, Danielle N.⁴, BENNETT, Scott¹, MCCLAUGHRY, Jason D.⁵ and HACKETT, Josh⁶, (1)U.S. Geological Survey, 2130 SW Fifth Avenue, Portland, OR 97201, (2)Department of Geology, University of Hawaii at Hilo, 200 W. Kawili St., Hilo, HI 96720, (3)U.S. Geological Survey (deceased), Menlo Park, CA 94025, (4)U.S. Geological Survey, Denver Federal Center, P.O. Box 25046, MS 980, Denver, CO 80225, (5)Oregon Department of Geology and Mineral Industries, Baker City Field Office, 1995 3rd Street, Suite 130, Baker City, OR 97814, (6)Oregon Water Resources Department, 725 Summer St. NE, Suite A, Salem, OR 97301

196-2

160

AN OUT-OF-SYNCLINE THRUST AND OTHER GEOLOGIC DISCOVERIES ON THE LYLE QUADRANGLE, OREGON

ANDERSON, James, Department of Geology, University of Hawaii at Hilo, 200 W. Kawili St., Hilo, HI 96720, LITE Jr., Kenneth E., GSI Water Solutions, 55 SW Yamhill Street, Suite 300, Portland, OR 97204 and HACKETT, Josh, Oregon Water Resources Department, 725 Summer St. NE, Suite A, Salem, OR 97301

196-3

161

A FAR-TRAVELED LATE MIOCENE BASALT FLOW FROM CENTRAL OREGON

PIVARUNAS, Anthony¹, O'CONNOR, Jim E.², CANNON, Charles², SHERROD, David³ and STELTEN, Mark E.⁴, (1)U.S. Geological Survey, Geology Minerals Energy and Geophysics Science Center, Moffett Field, CA 94043, (2)U.S. Geological Survey, 2130 SW Fifth Avenue, Portland, OR 97201, (3)Cascades Volcano Observatory, U.S. Geological Survey, Vancouver, WA 98683, (4)USGS, California Volcano Observatory, 345 Middlefield Road, Menlo Park, CA 94025-0000

196-4

162

A NEWLY DOCUMENTED MAJOR MID-MIOCENE RHYOLITE FIELD ASSOCIATED WITH COLUMBIA RIVER BASALT MAGMATISM, EASTERN OREGON, USA: THE STRAWBERRY RHYOLITES

THIEME, Chanel, MS¹, STRECK, Martin J.¹, STEINER, Arron² and SWEETEN, Rachel¹, (1)Department of Geology, Portland State University, 1721 SW Broadway Ave, Portland, OR 97201, (2)School of the Environment, Washington State University, Pullman, WA 99164

196-5

163

Withdrawn

196-6

164

ANALYSIS OF THE EMPLACEMENT, COMPOSITION, AND ERUPTIVE HISTORY OF THE HORSE BASIN RHYOLITE NEAR BRUNEAU, IDAHO

MILLER, David¹, DENIEF, Lilly¹, FLICK, Raine¹, DOMAGALL, Abigail¹ and KOBS NAWOTNIAK, Shannon², (1)School of Natural Science, Black Hills State University, 1200 University Street, Unit 9008, Spearfish, SD 57799-9008, (2)Department of Geosciences, Idaho State University, 921 S 8th Ave, Pocatello, ID 83209

196-7

165

Withdrawn

196-8

166

CONSTRAINTS ON FAULT CONTINUITY AND LIMITS ON SLIP IN THE BACKARC OF NORTHEASTERN CALIFORNIA FROM AEROMAGNETIC DATA

LANGENHEIM, Victoria¹, SWEETKIND, D.S.², CHAMPION, Duane E.³, AVERY, Margaret S.¹ and PIVARUNAS, Anthony⁴, (1)Geology, Minerals, Energy, and Geophysics Science Center, U.S. Geological Survey, 345 Middlefield Road, Menlo Park, CA 98195-94025, (2)U.S Geological Survey, Denver Federal Center, Mail Stop 980, Denver, CO 80225, (3)U.S. Geological Survey, California Volcano Observatory, 345 Middlefield Rd, MS910, Menlo Park, CA 94025, (4)U.S. Geological Survey, Geology Minerals Energy and Geophysics Science Center, Moffett Field, CA 94043

196-9

167

THE IMPORTANCE OF TERTIARY VOLCANICS IN UNDERSTANDING THE GEOLOGIC HISTORY OF THE NORTHERN SIERRA NEVADA MOUNTAINS, CALIFORNIA

ROBERTS, Michelle, U.S. Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, Moffett Field, CA 94035

196-10

168

UPDATING AND ASSESSING THE ACCURACY OF THE GEOLOGIC MAPS OF YELLOWSTONE NATIONAL PARK

KRAGH, Natali, Department of Earth Sciences, Montana State University, 226 Traphagen Hall, Bozeman, MT 59717, MYERS, Madison, Department of Earth Sciences, Montana State University, 226 Traphagen Hall, Bozeman, MT 59718 and HUNGERFORD, Jefferson, National Park Service, Yellowstone Center for Resources, Yellowstone National Park, WY 82190

196-11

169

REEVALUATING THE DISTRIBUTION OF THE LAVA CREEK TUFF, YELLOWSTONE

HENDERSON, Stacy, Department of Earth Sciences, Montana State University, 206 Traphagen Hall, Bozeman, MT 59717; Montana State University; Earth Sciences, Montana State University, 226 Traphagen Hall, Bozeman, MT 59718 and MYERS, Madison, Department of Earth Sciences, Montana State University, 226 Traphagen Hall, Bozeman, MT 59718

196-12

170

DISENTANGLING THE LAVA CREEK TUFF ERUPTION THROUGH RE-MAPPING OF SOUR CREEK DOME, YELLOWSTONE NATIONAL PARK

SALAZAR, Raymond¹, MYERS, Madison¹, WILSON, Colin J.N.² and HENDERSON, Stacy³, (1)Department of Earth Sciences, Montana State University, 226 Traphagen Hall, Bozeman, MT 59718, (2)School of Geography, Environment and Earth Sciences, Victoria University of Wellington, PO Box 600, Wellington, 6040, New Zealand, (3)Department of Earth Sciences, Montana State University, 206 Traphagen Hall, Bozeman, MT 59717

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