GSA Annual Meeting in Phoenix, Arizona, USA - 2019

Session No. 241
Wednesday, 25 September 2019: 8:00 AM-12:00 PM
Room 131ABC, North Building (Phoenix Convention Center)

T35. Subduction Zone Magmatism from Source to Eruption, in the Lab and in the Field: In Honor of Christy Till, GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division Early Career Awardee

GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division

 

Adam J.R. Kent and Michael J. Krawczynski, Advocates
Paper #
Start Time
 
8:00 AM
Award Ceremony - Christy B Till, MGPV 2019 Early Career Award Winner
8:15 AM
CONCEPTUAL MODELS OF ARC MAGMATISM: LOOKING TO THE FUTURE (Invited Presentation)
TILL, Christy B., School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, KENT, Adam J.R., College of Earth, Ocean, and Atmospheric, Sciences, Oregon State University, Corvallis, OR 97331 and ABERS, Geoff, Earth and Atmospheric Sciences, Cornell University, 2122 Snee Hall, Ithaca, NY 14850
8:45 AM
GARNET STABILITY IN ARC MAGMAS – EXPERIMENTAL RESULTS FOR CASCADE ARC BASALT, ANDESITE, AND DACITE
BLATTER, Dawnika, SISSON, Thomas W. and HANKINS, William Ben, USGS, Volcano Science Center, 345 Middlefield Road, Menlo Park, CA 94025-0000
9:00 AM
PRESERVATION OF FOUNDERED LOWER CRUSTAL CUMULATES IN THE HIGASHI-AKAISHI ULTRAMAFIC BODY, JAPAN
GUILD, Meghan1, TILL, Christy B.1, MIZUKAMI, Tomoyuki2 and WALLIS, Simon3, (1)School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, (2)Department of Earth Science, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan., 920-1192, Japan, (3)Department of Earth and Planetary Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, JAPAN, AZ 113-0033, Japan
9:15 AM
THE OXIDATION STATES OF IRON AND VOLATILE COMPOSITIONS OF EXPEDITION 352 GLASSES (Invited Presentation)
BROUNCE, M., Earth and Planetary Sciences, University of California Riverside, 1224b Geology Building, 900 University Avenue, Riverside, CA 92125, REAGAN, Mark K., Earth and Environmental Sciences, University of Iowa, Iowa City, IA 52242, COULTHARD Jr., Daniel A., Massey University, Palmerston North, 4442, New Zealand, KELLEY, Katherine A., Graduate School of Oceanography, University of Rhode Island, 215 South Ferry Road, Narragansett, RI 02882 and COTTRELL, Elizabeth, Mineral Sciences, Smithsonian Institution, PO Box 37012, National Museum of Natural History MRC-119, Washington, DC 20013-7012
9:35 AM
EVIDENCE FOR OPEN-SYSTEM PROCESSES DURING EARLY SUBDUCTION ZONE MAGMATISM
SCHOLPP, Jesse1, RYAN, Jeffrey2, SHERVAIS, John W.1, LUNA, Antonio2, HILL, Stephen2, ATLAS, Zachary2 and MACK, Bradford2, (1)School of Geosciences, Utah State University, 4505 Old Main Hill, Logan, UT 84322, (2)School of Geosciences, University of South Florida, 4202 East Fowler Ave., Tampa, FL 33620
9:50 AM
SUPERSATURATION NUCLEATION AND GROWTH OF PLAGIOCLASE IN RESPONSE TO ERUPTIVE DECOMPRESSION (Invited Presentation)
BEFUS, Kenneth, Geology, Baylor University, One Bear Place #97354, Waco, TX 76798 and ANDREWS, Benjamin J., Mineral Sciences, Smithsonian Institution, Washington, DC 20560
 
10:10 AM
Break
10:25 AM
EVIDENCE FOR ERUPTION OF A SUPERHYDROUS MAGMA FROM SHIVELUCH VOLCANO, KAMCHATKA
KRAWCZYNSKI, Michael J., GOLTZ, Andrea and GAVRILENKO, Maxim G., Department of Earth and Planetary Sciences, Washington University in St. Louis, 1 Brookings Drive, Campus Box 1169, St. Louis, MO 63130
10:40 AM
A NEW MODEL FOR THE FORMATION OF THE MEGACRYSTIC ANORTHITE “XENOCRYSTS” FOUND IN SUBDUCTION ZONE MAGMAS
CATALANO, Tristan, Dept of Geosciences, Stony Brook University, Stony Brook, NY 11794-2100 and NEKVASIL, Hanna, Department of Geosciences, Stony Brook University, Stony Brook, NY 11794
10:55 AM
PLUTONIC CATASTROPHES
GLAZNER, Allen F.1, BARTLEY, John M.2 and COLEMAN, Drew S.1, (1)Dept. of Geological Sciences, University of North Carolina, Chapel Hill, NC 27599-3315, (2)Department of Geology and Geophysics, University of Utah, Salt Lake City, UT 84112
11:10 AM
PLUTON EMPLACEMENT IN THE ANDEAN CONTRACTIONAL BELT, CHILE: THE ROLE OF TECTONIC SHORTENING IN MAGMA SEGREGATION, ACCUMULATION, AND ESCAPE
TIKOFF, Basil, Department of Geoscience, University of Wisconsin-Madison, 1215 West Dayton Street, Madison, WI 53706, GARIBALDI, Nicolas, Department of Geoscience, University of Wisconsin - Madison, 1215 W Dayton St, Madison, WI 53706, SCHAEN, Allen, Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St, Madison, WI 53706 and SINGER, Bradley S., Department of Geoscience, University of Wisconsin, 1215 W. Dayton St., Madison, WI 53706
11:25 AM
PROTRACTED MAGMATIC K-FELDSPAR MEGACRYST GROWTH REVEALED WITH CA-ID-TIMS-TEA U-PB ZIRCON GEOCHRONOLOGY IN THE TUOLUMNE INTRUSIVE COMPLEX, CALIFORNIA
MEMETI, Vali1, CHAMBERS, Melissa1, EDDY, Michael P.2 and SCHOENE, Blair2, (1)Department of Geological Sciences, California State University, Fullerton, 800 N State College Blvd., Fullerton, CA 92831-3599, (2)Department of Geosciences, Princeton University, Guyot Hall, Princeton, NJ 08544
11:40 AM
SHIFT FROM SOURCE TO SYSTEM CONTROL ON PLUTON COMPOSITIONS RECORDED IN THE MIGRATED JACK MAIN CANYON INTRUSIVE SUITE IN THE CENTRAL SIERRA NEVADA, CA
SCHELAND, Cullen L.1, MEMETI, Vali2, ANGULO, Alejandra3, HAYWARD, Jamie Ann4 and CHAMBERS, Melissa2, (1)Earth Sciences, University of Southern California, Los Angeles, CA 90089; Department of Geological Sciences, California State University, Fullerton, 800 N State College Blvd., Fullerton, CA 92831-3599, (2)Department of Geological Sciences, California State University, Fullerton, 800 N State College Blvd., Fullerton, CA 92831-3599, (3)Department of Geological Sciences, California State University, Fullerton, 800 N State College Blvd., Fullerton, CA 92831-3599; Geology and Geophysics, Texas Tech University, Lubbock, TX 79409, (4)California State University - Fullerton, 800 N State College Blvd, Fullerton, CA 92831
 
11:55 AM
Concluding Remarks
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