V43C:
Continental Intraplate Magmas: Their Origins and Significance Interpreted from Multidisciplinary Studies Posters


Submit an Abstract to this Session


Session ID#: 46460

Session Description:
Intraplate continental magmas span from rhyolites, through dominant basalts, to exceptionally alkalic and carbonatitic compositions. This is probably the most diverse igneous environment accessible on Earth. The stability of the continents has also captured intraplate magmas over exceptionally long periods of time, providing a record of long-term geochemical and geodynamic evolution.  Recent advances in the understanding of intraplate continental magmatism have come from studies that combine geological, geophysical and geochemical methods. This session welcomes investigations, particularly multi-disciplinary studies, of the processes, sources, and conditions within the lithosphere and upper mantle that generate intra-plate continental magmas.
Primary Convener:  Thomas W Sisson, USGS California Volcano Observatory, Menlo Park, CA, United States
Conveners:  Walter D Mooney, USGS Earthquake Science Center, Moffett Field, United States and Katarzyna Maria Liszewska, USGS, Earthquake Science Center, Menlo Park, CA, United States
Primary Liaison:  Thomas W Sisson, USGS, Menlo Park, CA, United States
Chairs:  Thomas W Sisson, USGS, Menlo Park, CA, United States and Walter D Mooney, USGS Earthquake Science Center, Moffett Field, United States
OSPA Liaison:  Thomas W Sisson, USGS, Menlo Park, CA, United States

Cross-Listed:
  • NH - Natural Hazards
  • P - Planetary Sciences
  • S - Seismology
  • T - Tectonophysics
Index Terms:

3615 Intra-plate processes [MINERALOGY AND PETROLOGY]
7218 Lithosphere [SEISMOLOGY]
8121 Dynamics: convection currents, and mantle plumes [TECTONOPHYSICS]
8415 Intra-plate processes [VOLCANOLOGY]

Abstracts Submitted to this Session:

Differentiation of basalts of the Harrat Rahat volcanic field, Saudi Arabia (421802)
Thomas W Sisson1, Drew Tyler Downs2, Mark E Stelten3, Hannah R Dietterich4, Vincent J M Salters5, Andrew T Calvert6, Gail Ann Mahood7, Hani M. Zahran8, Khalid H. Hassan8 and Jamal Shawali8, (1)USGS Volcano Science Center Menlo Park, Menlo Park, CA, United States, (2)USGS Volcano Science Center Menlo Park, Menlo Park, United States, (3)USGS Volcano Science Center, Menlo Park, United States, (4)U.S. Geological Survey Volcano Science Center, Alaska Volcano Observatory, Anchorage, United States, (5)NHMFL, Tallahassee, FL, United States, (6)U.S. Geological Survey, Menlo Park, CA, United States, (7)Stanford University, Stanford, CA, United States, (8)Saudi Geological Survey, Jeddah, Saudi Arabia
Geochemical characteristics and geochronology research of diopside syenite and diopside granite of Kuzigan, Taxkorganin Ailaoshan-Jinshajiang (403045)
Chi Xu, Yajuan Yuan, Xiao Zhang, Ye Lu and Bin Xia, Sun Yat-sen University, Guangzhou, China
Geochemistry characteristics and geological significance of clinopyroxene phenocrysts in the ~4.8 Ma shoshonite from in Quanshuigou area of West Kunlun Mountains, NW Tibetan Plateau (402079)
Yajuan Yuan, Chi Xu, Ye Lu and Xiao Zhang, Sun Yat-sen University, Guangzhou, China
Inter-mineral calcium isotopic fractionation in granitoids in the Early Cretaceous Fangshan pluton, Beijing (392035)
Fang Liu1, Zhekun Zhang2, Lipeng Zhang3 and Zhaofeng Zhang1, (1)State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China, (2)Guangzhou Institute of Geochemistry, CAS, Guangzhou, China, (3)Center of Deep Sea Research, Institute of Oceanology, Guangzhou, China
In situ zircon U/Pb ages of the Neoproterozoic granites of the Seychelles:evidence suggesting a transition from collisional to extensional setting (355280)
Nguyen THI Dieu, Taipei, Taiwan
Late Mesozoic magmatism and tectonic evolution in the Southern margin of the North China Craton (383473)
Xinyu Gao, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China and Taiping Zhao, GIG Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China
Quantifying Relationships Between Magmatism, Asthenospheric Temperature and Dynamic Support: An African Case Study (440387)
Patrick Ball1, Nicky White1, John Maclennan2, Marthe Klöcking1, Finlay M Stuart3, Clive Oppenheimer4 and Mark Hoggard5, (1)University of Cambridge, Bullard Laboratories, Cambridge, United Kingdom, (2)University of Cambridge, Cambridge, United Kingdom, (3)Scottish Universities Environmental Research Center at the University of Glasgow, East Kilbride, United Kingdom, (4)Department of Geography, University of Cambridge, Cambridge, United Kingdom, (5)Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States
Revealing the enigmatic alkaline volcanism of the Rukwa Rift through titanite – a melt inclusion study (344613)
Leigh Lawrence1, Carl Spandler2, Eric Roberts2 and Hannah Hilbert-Wolf2, (1)James Cook University, Department of Geosciences, College of Science & Engineering, Minneapolis, MN, United States, (2)James Cook University, Department of Geosciences, College of Science & Engineering, Townsville, Australia

See more of: Volcanology, Geochemistry and Petrology