GSA Connects 2023 Meeting in Pittsburgh, Pennsylvania

Session No. 10
Sunday, 15 October 2023: 8:00 AM-12:00 PM
327 (David L Lawrence Convention Center)

T86. Subduction Zone Processes in the Evolution of Ophiolites, Continental Crust, and Orogenic Belts I

GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Structural Geology and Tectonics Division

 

Yildirim Dilek, James H. MacDonald Jr., Christopher G. Mattinson, Emma Burkett, Aubrey Laplante, Michael Murphy and Lu Wang, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
8:15 AM
PARADIGM SHIFTS IN THE OPHIOLITE CONCEPT DURING THE LAST 50 YEARS, FOLLOWING MIYASHIRO’S 1973 CLAIM THAT THE TROODOS (CYPRUS) COMPLEX HAD FORMED IN AN ISLAND ARC
DILEK, Yildirim, Department of Geology & Environmental Earth Science, Miami University, 208 Shideler Hall, Oxford, Ohio, OH 45056
8:30 AM
EVOLUTION OF THE SUPRA-SUBDUCTION ZONE (SSZ) OPHIOLITE CONCEPT: FROM MIYASHIRO (1973) TO THE PRESENT-DAY (2023) (Invited Presentation)
PEARCE, Julian, Cardiff University, School of Earth and Ocean Sciences, Park Place, Cardiff, CF10 3AT, United Kingdom
8:50 AM
ON THE LIMITS AND LIMITATIONS OF THE OPHIOLITE - MID-OCEAN RIDGE ANALOGY: OMAN VS THE EAST PACIFIC RISE
MACLEOD, Christopher, School of Earth & Environmental Sciences, Cardiff University, Main Building, Park Place, Cardiff, (None) CF10 3AT, United Kingdom and MACLEOD, C Johan, School of Earth & Environmental Sciences, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, United Kingdom
9:05 AM
TEMPORAL EVOLUTION OF THE SAMAIL (OMAN-UAE) OPHIOLITE
RIOUX, Matthew1, GARBER, Joshua M.2, SEARLE, Michael P.3, CROWLEY, James L.4, SCHMITZ, Mark4 and KYLANDER-CLARK, Andrew1, (1)Department of Earth Science, University of California, Santa Barbara, CA 93106, (2)Department of Geosciences, Pennsylvania State University, University Park, PA 16802, (3)Department of Earth Sciences, University of Oxford, Oxford, OX1 3AN, United Kingdom, (4)Department of Geosciences, Boise State University, Boise, ID 83725
9:20 AM
SHEAR HEATING DURING RAPID SUBDUCTION INITIATION BENEATH THE SAMAIL OPHIOLITE
GARBER, Joshua, Department of Geosciences, The Pennsylvania State University, 305 Deike Building, University Park, PA 16802, RIOUX, Matthew, Department of Earth Science, University of California, Santa Barbara, CA 93106, CRUZ-URIBE, Alicia, Earth and Climate Sciences, University of Maine, 5790 Bryand Global Sciences Center, Orono, ME 04469, SMYE, Andrew J., Department of Geosciences, The Pennsylvania State University, Deike Building, University Park, PA 16802, BAKER, Peter, School of the Environment, Washington State University, Pullman, WA 99164, VERVOORT, Jeffrey, School of Earth and Environmental Sciences, Washington State University, Webster Physical Science Building 1228, Pullman, WA 99164-2812 and SEARLE, Michael P., Department of Earth Sciences, University of Oxford, Oxford, OX1 3AN, United Kingdom
9:35 AM
WHAT CAN WE LEARN FROM APPARENTLY DIVERGENT THERMAL HISTORIES OF MANTLE PERIDOTITES FROM OPHIOLITIC AND AMAGMATIC MID-OCEAN RIDGE SPREADING CENTERS?
DYGERT, Nicholas, Earth and Planetary Sciences, University of Tennessee, Knoxville, TN 37996 and JANSEN, Max, School of Earth and Environmental Sciences, Cardiff University, Cardiff, CF10 3AT, United Kingdom
9:50 AM
PETROGENESIS OF SERPENTINITE FROM THE INGALLS OPHIOLITE COMPLEX, CENTRAL CASCADES, WASHINGTON. FURTHER EVIDENCE FOR A SUPRA-SUBDUCTION ZONE SETTING
MACDONALD Jr., James, Environmental Geology Program and Honors College, Florida Gulf Coast University, 10501 FGCU Blvd. South, Fort Myers, FL 33965-6565
10:05 AM
ARE SERPENTINITES FROM THE GREATER NYC AREA ALL OPHIOLITES? INSIGHT FROM B ISOTOPES AND SPINEL-GROUP MINERALS (Invited Presentation)
MARTIN, Celine, American Museum of Natural History, Earth and Planetary Science Department, Central Park West @79th street, New York, NY 10024, GUICE, George, Department of Earth and Planetary Sciences, American Museum of Natural History, New York, NY 10024-5192; Department of Physics, Astronomy and Geosciences, Towson University, Towson, MD 21252, FLORES, Kennet E., Department of Earth, Marine and Environmental Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599; American Museum of Natural History, Earth and Planetary Science Department, Central Park West @79th street, New York, NY 10024, MORALES, Narciso, CUNY College of Staten Island, Staten Island, NY 10304; Department of Earth and Planetary Sciences, American Museum of Natural History, New York, NY 10024-5192 and HARLOW, George, American Museum of Natural History, 200 Central Park West, New York, NY NY 10024-5102
 
10:25 AM
Discussion
 
10:35 AM
Break
10:50 AM
MONOGENETIC VOLCANOES AS WINDOWS INTO TRANSCRUSTAL MUSH: A CASE STUDY OF SLAMET AND LOYANG VOLCANOES, CENTRAL JAVA
BARBER, Nicholas1, BALDWIN, Sophie L.2, EDMONDS, Marie3, BOSCHETTY, Felix O.4, WIBOWO, Haryo Edi5 and HARIJOKO, Agung5, (1)Department of Earth and Environmental Geoscience, Washington and Lee University, 204 W. Washington Street, A117, Lexington, VA 24450; Department of Earth Sciences, University of Cambridge, Cambridge, United Kingdom, (2)School of Geosciences, University of Edinburgh, Edinburgh, Scotland EH10 5HF, United Kingdom; Department of Earth Sciences, University of Cambridge, Cambridge, United Kingdom, (3)Department of Earth Sciences, University of Cambridge, Cambridge, United Kingdom, (4)Institute of Geophysics and Tectonics, School of Earth and Environment, University of Leeds, Leeds, England LS2 9JT, United Kingdom, (5)Departemen Teknik Geologi, Universitas Gadjah Mada, Yogyakarta, Central Java 55284, Indonesia
11:05 AM
EVOLUTION OF MAGMA PROPERTIES AND FLOW DIRECTIONS DURING DIKE EMPLACEMENT AT SUMMER COON VOLCANO, CO
AKSIT, Gui, Department of Earth Sciences, University of Oregon, Eugene, OR 97403, TOWNSEND, Meredith, Department of Earth and Environmental Sciences, Lehigh University, Bethlehem, PA 18015 and HARP, Andrew, Department of Geological and Environmental Sciences, California State University, Chico, Chico, CA 95929
11:20 AM
GEOCHEMICAL ANALYSIS OF THE PACAYA VOLCANIC COMPLEX IN GUATEMALA
NIDY, Claire, 44 W Norwich Ave, Columbus, OH 43201, HERNANDEZ, Lindsey, Columbus, OH 43201 and BARTON, Michael, School of Earth Sciences, The Ohio State University, Mendenhall Laboratory, 125 S Oval Mall, Columbus, OH 43210
 
11:35 AM
Discussion
 
11:50 AM
Concluding Remarks
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