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GSA 2020 Connects Online

Session No. 74
Tuesday, 27 October 2020: 1:30 PM-5:30 PM

T41. Volcanism and Tectonics along Rifts and Volcanic Arcs: Understanding the Relationships between Timing, Volumes, and Distributions I

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

 

Sara Mana and Erin N. DiMaggio, Advocates
Paper #
Start Time
74-1
1:30 PM
NEW INSIGHTS INTO THE SPATIAL AND TEMPORAL DISTRIBUTION OF MAGMATISM WITHIN MATURE CONTINENTAL RIFTS (Invited Presentation)
BIGGS, Juliet1, GOTTSMANN, Jo2, TEMTIME, Tesfaye1, LEWI, Elias3 and AYELE, Atalay3, (1)COMET, School of Earth Sciences, University of Bristol, Bristol, Bristol, BS8 1RJ, United Kingdom, (2)School of Earth Sciences, University of Bristol, Bristol, Bristol, BS8 1RJ, United Kingdom, (3)IGSSA, Addis Ababa University, Addis Ababa, NA, Ethiopia
74-2
1:45 PM
BORDER FAULT SEGMENTATION AND LINKAGE AT THE PROPAGATING TIPS OF CONTINENTAL RIFTS: INSIGHTS FROM SOUTH MALAWI RIFT
OJO, Oyewande O. and LAÓ-DÁVILA, Daniel A., Boone Pickens School of Geology, Oklahoma State University, 105 Noble Research Center, Stillwater, OK 74078
74-3
2:00 PM
LINKING THE ACTIVATION OF INHERITED-CRUSTAL WEAKNESS AND CENOZOIC VOLCANIC PLUMPING SYSTEM DURING RIFTING OF THE RED SEA, WESTERN SAUDI ARABIAN MARGIN
SAMKARI, Abdulaziz, Department of Geology, University of Leicester, Leicester, LE1 7RH, United Kingdom; Department of Earth Sciences, King Abdulaziz University, Jeddah, 12235, Saudi Arabia, WALKER, Richard, Deparment of Geology, University of Leicester, Leicester, LE1 7RH, United Kingdom and REICHOW, Marc, Department of Geology, University of Leicester, Leicester, LE1 7RH, United Kingdom
74-4
2:15 PM
QUANTIFYING THE TEMPO OF LATE QUATERNARY VOLCANISM ALONG ARCS AND RIFTS: CHALLENGES, AND PROSPECTS (Invited Presentation)
PYLE, David M.1, FONTIJN, Karen2, HUTCHISON, William3, MATHER, Tamsin A.1 and SATOW, Christopher4, (1)Department of Earth Sciences, University of Oxford, South Parks Road, Oxford, OX1 3AN, United Kingdom, (2)The Institut of Geosciences, Universite Libre De Bruxelles, Brussels, 1050, Belgium, (3)School of Earth and Environmental Sciences, University of St Andrews, Irvine Building, St Andrews, KY16 9AL, United Kingdom, (4)Department of Social Sciences, Oxford Brookes University, Headington Campus, Oxford, OX3 0BP, United Kingdom
 
2:30 PM
Discussion
 
2:40 PM
Break
74-5
2:45 PM
EXPLORING THE RELATIONSHIP BETWEEN VOLCANIC PASSIVE MARGINS AND ADJACENT LARGE IGNEOUS PROVINCES
GALLAHUE, Molly M.1, STEIN, Seth1, STEIN, Carol A.2, JURDY, Donna M.1, BARKLAGE, Mitchell3 and ROONEY, Tyrone4, (1)Earth and Planetary Sciences, Northwestern University, 2145 Sheridan Rd., Evanston, IL 60208, (2)Earth and Environmental Sciences, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, IL 60607-7059, (3)Illinois State Geological Survey, Prairie Research Institute, University of Illinois at Urbana-Champaign, 615 E Peabody Dr., Champaign, IL 61820, (4)Geological Sciences, Michigan State University, 206 Natural Sciences, East Lansing, MI 48824
74-6
3:00 PM
SEISMIC EXPRESSION OF CAMP-RELATED IGNEOUS SHEETS AND THEIR ROLE IN CONSTRAINING THE AGE OF SYNRIFT SALT IN THE EARLY MESOZOIC ORPHEUS RIFT BASIN, OFFSHORE SOUTHEASTERN CANADA
HANAFI, Bari R.1, WITHJACK, Martha O.1, SCHLISCHE, Roy W.1, DURCANIN, Michael A.2 and SYAMSIR, Zulfitriadi3, (1)Department of Earth and Planetary Sciences, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854-8066, (2)Murphy Exploration and Production Company, Houston, TX 77024, (3)ExxonMobil International Limited, Leatherhead, United Kingdom
74-7
3:15 PM
REVISITING HOTSPOTS AND CONTINENTAL BREAKUP – UPDATING THE CLASSICAL THREE-ARM MODEL
STEIN, Carol A.1, STEIN, Seth2, GALLAHUE, Molly M.2 and ELLING, Reece P.2, (1)Earth & Environmental Sciences, University of Illinois at Chicago, Chicago, IL 60607, (2)Earth & Planetary Sciences, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3130
74-8
3:30 PM
CLIMATE CHANGE THROUGHOUT EARTH HISTORY IS CAUSED BY LARGE BASALTIC LAVA FLOWS IN SUBAERIAL RIFT ZONES CAUSING RAPID GLOBAL WARMING WHILE EXPLOSIVE ERUPTIONS IN VOLCANIC ARCS FORM AEROSOLS THAT CAUSE SLOW, INCREMENTAL COOLING OVER MILLENNIA
WARD, Peter L., US Geological Survey retired, Science Is Never Settled, PO Box 4875, Jackson, WY 83001-4875
 
3:45 PM
discussion 2
 
3:55 PM
break 2
74-9
4:00 PM
40AR/39AR GEOCHRONOLOGY AND VOLUMETRIC ESTIMATIONS OF POST-VALLES-CALDERA ERUPTIONS REVEALS POLYGENETIC DOME EMPLACEMENT WITH IMPLICATIONS FOR FUTURE SILICIC VOLCANISM IN THE SOUTHWESTERN US
NASHOLDS, Morgan, New Mexico Bureau of Geology and Mineral Resources, 801 Leroy Pl, Socorro, NM 87801 and ZIMMERER, Matthew J., New Mexico Bureau of Geology and Mineral Resources, New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, NM 87801
74-10
4:15 PM
BUILDING AND RE-BUILDING A SUPER-ERUPTION: ID-TIMS U-PB ZIRCON GEOCHRONOLOGY OF THE BANDELIER TUFF AND CERRO TOLEDO RHYOLITES
STEINER-LEACH, Travis Lewis, SZYMANOWSKI, Dawid and SCHOENE, Blair, Department of Geosciences, Princeton University, Guyot Hall, Princeton, NJ 08544
74-11
4:30 PM
TIME-EVOLVING SURFACE AND SUBSURFACE SIGNATURES OF QUATERNARY VOLCANISM IN THE CASCADES ARC
O'HARA, Daniel1, KARLSTROM, Leif1 and RAMSEY, David W.2, (1)Department of Earth Sciences, University of Oregon, 100 Cascade Hall, 1272 University of Oregon, Eugene, OR 97403, (2)U.S. Geological Survey, Cascades Volcano Observatory, 1300 SE Cardinal Ct, Bldg 10, Ste 100, Vancouver, WA 98683
74-12
4:45 PM
GEOCHEMISTRY OF MODERN CONTINENTAL BACK-ARC BASINS AND TRIASSIC-JURASSIC COLLISION-INDUCED BACK-ARC SPREADING IN THE CAUCASUS
VASEY, Dylan A., COWGILL, Eric and COOPER, Kari M., Department of Earth & Planetary Sciences, University of California, Davis, One Shields Ave, Davis, CA 95616
 
5:00 PM
discussion 3
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