GSA Connects 2023 Meeting in Pittsburgh, Pennsylvania

Session No. 59
Sunday, 15 October 2023: 1:30 PM-5:30 PM
327 (David L Lawrence Convention Center)

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

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
 
1:30 PM
Introductory Remarks
1:35 PM
SUBDUCTION AND EXHUMATION OF THE SAXON GRANULITE COMPLEX: CONSTRAINTS FROM THE BOROSILICATE PRISMATINE, (VAC,MG,FE)(AL,MG,FE)9(SI,AL,B)5O21(OH,F), AT WALDHEIM, GERMANY
RÖTZLER, Jochen1, GREW, Edward2, FERRERO, Silvio3, BORGHINI, Alessia4, MEIXNER, Anette5, WILKE, Max6 and YATES, Martin2, (1)German Research Centre for Geosciences, GFZ, Telegrafenberg, Potsdam, 14473, Germany, (2)School of Earth and Climate Sciences, University of Maine, Orono, ME 04469, (3)Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Blocco A, Cittadella Universitaria, Monserrato, Cagliari 09042, Italy, (4)Faculty of Geology, Geophysics and Environmental Protection, AGH University of Science and Technology, Department of Mineralogy, Petrology and Geochemistry, Aleja Mickiewicza 30, Krakow, 30-059, Poland, (5)Faculty of Geosciences & Marum Center for Marine Environmental Sciences, University of Bremen, Bremen, 28334, Germany, (6)Institute of Earth Sciences, Universität Potsdam, Potsdam, Germany
1:50 PM
CONSTRAINTS ON THE REMOBILIZATION OF THALLIUM AND FLUID-MINERAL INTERACTIONS DURING HIGH-PRESSURE METAMORPHISM
ADAMS, James, Earth and Atmospheric Sciences, Indiana University-Bloomington, 629 Cambridge Ct, Apt 2A, Munster, IN 46321-2475, RADER, Shelby, Department of Earth and Atmospheric Sciences, Indiana University, 1001 E 10th St, Bloomington, IN 47408, GASCHNIG, Richard, Department of Environmental, Earth and Atmospheric Sciences, University of Massachusetts Lowell, 1 University Ave, Lowell, MA 01854 and BEBOUT, Gray, Earth and Environmental Sciences, Lehigh University, 1 West Packer Avenue, Bethlehem, PA 18049-1505
2:05 PM
ISOTOPIC AND ELEMENTAL ZONING IN GARNET REVEALS MULTIPLE MECHANISMS OF CHEMICAL TRANSFER IN SUBDUCTION ZONES (Invited Presentation)
GEORGE, Freya, School of Earth Sciences, University of Bristol, Bristol, BS8 1RJ, United Kingdom, VIETE, Daniel, Department of Earth & Planetary Sciences, Johns Hopkins University, 3400 N Charles Street, Baltimore, MD 21218, ÁVILA, Janaina, School of Earth & Environmental Sciences, University of Queensland, Brisbane, QLD 4067, Australia, SEWARD, Gareth, Earth Science, University of California Santa Barbara, Santa Barbara, CA 93106 and GUICE, George, Department of Earth and Planetary Sciences, American Museum of Natural History, New York, NY 10024-5192
2:25 PM
THE CONTROLS AND STYLE OF UNDERPLATING ALONG THE SUBDUCTION PLATE INTERFACE (Invited Presentation)
POULAKI, Eirini1, STOCKLI, Daniel F.2, SHUCK, Brandon3, CONDIT, Cailey4, GUEVARA, Victor5, HOOVER, William1, FERRELL, Megan6 and ODLUM, Margaret6, (1)Dept. of Earth and Space Sciences, University of Washington, Seattle, WA 98195, (2)Jackson School of Geosciences, The University of Texas at Austin, 2305 Speedway Stop C1160, Austin, TX 78712, (3)Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, TX 78712, (4)Department of Earth and Space Sciences, University of Washington, Seattle, WA 98103, (5)Geology Dep, Amherst College, 220 S Pleasant St, Amherst, MA 01002-2372, (6)Dept. of Geoscience, University of Nevada Las Vegas, Las Vegas, NV 89154
2:45 PM
THERMAL, MAGMATIC, AND STRESS EFFECTS OF FLAT SUBDUCTION IN MEXICO AND CHILE: A 2D THERMO-MECHANICAL MODELING STUDY
CHEN, Ji-Ching and TAN, Eh, Institute of Earth Sciences, Academia Sinica, Taipei, 11529, Taiwan
3:00 PM
AUTOMATED DETECTION AND CHARACTERIZATION OF SWARMS AND MAINSHOCK-AFTERSHOCK SEQUENCES IN SOUTHERN MEXICO (Invited Presentation)
VENTURA-VALENTIN, Wilnelly1, BRUDZINSKI, Michael2, BENNETT, Anthony2, COKER, Sharif3 and KHALKHALI, Mehrnaz2, (1)Department of Geology & Environmental Earth Science, Miami University, 118 Shideler Hall 250 S. Patterson Ave., Oxford, OH 45056, (2)Department of Geology and Environmental Earth Science, Miami University, 118 Shideler Hall, 250 S. Patterson Ave., Oxford, OH 45056, (3)Fort Valley State University, Fort Valley, GA 30062
 
3:20 PM
Break
3:35 PM
GEOCHEMISTRY AND SR-ND ISOTOPE COMPOSITIONS OF PERIDOTITE MANTLE XENOLITHS FROM NORTHWESTERN MÉXICO (BAJA CALIFORNIA, SINALOA, AND NAYARIT)
CONTRERAS-LOPEZ, Manuel1, SCHAAF, Peter1, ARRIETA-GARCÍA, Gerardo F.1, SOLÍS-PICHARDO, Gabriela2 and SOSA-CEBALLOS, Giovanni3, (1)Laboratorio Universitario de Geoquímica Isotópica, Instituto de Geofísica, UNAM, Ciudad de México, DF 04510, Mexico, (2)Laboratorio Universitario de Geoquímica Isotópica, Instituto de Geología, UNAM, Ciudad de México, DF 04510, Mexico, (3)Unidad Michoacán, Instituto de Geofísica, UNAM, Morelia, MH 58190, Mexico
3:50 PM
GARNET EVIDENCE FOR PROGRADE ORE MINERALIZATION IN THE TIBES IRON SKARN, PUERTO RICO
HUDGINS, Tom, Department of Geology, University of Puerto Rico, Mayagüez, Mayaguez, PR 00681, GIOVANNETTI-NAZARIO, David, Earth and Planetary Sciences, University of New Mexico, Northrop Hall, 221 Yale Blvd NE, Albuquerque, NM 87131-0001 and BILENKER, Laura, Department of Geosciences, Auburn University, Auburn, AL 36849
4:05 PM
A COMPARISON OF IRON ORE DEPOSITS IN PUERTO RICO: IMPLICATIONS FOR IRON TRANSPORT AND DEPOSITION IN SKARN SYSTEMS
BILENKER, Laura1, HUDGINS, Tom2 and BAREFOOT, Marisa1, (1)Department of Geosciences, Auburn University, Auburn, AL 36849, (2)Department of Geology, University of Puerto Rico, Mayagüez, Mayaguez, PR 00681
 
4:20 PM
Discussion
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