V022
Hotspots and Plumes - an Interdisciplinary Examination of the Critical Link Between Deep and Shallow Earth Processes
Session ID#: 164542
Session Description:
Hotspots and mantle plumes constitute a critical pathway by which deeply stored materials are brought to the surface, linking the classical plate tectonics model with a longer deep mantle cyclic storage hypothesis. Our evolving understanding of the dynamics of the lower mantle has ignited debate about the origin and evolution of heterogeneous deep mantle reservoirs. Central to these debates are the geochemical, geophysical, and geodynamic insights into the origin, evolution, and characteristics of a diverse range of hotspots. This session will focus upon a collective interweaving the disparate strands of knowledge within the field to yield a coherent tapestry describing the roles played by mantle plumes and hotspots in Earth processes. We welcome contributions from all disciplines studying plumes and hotspots and encourage authors to consider how their work might fit into the larger narrative outlined above.
Index Terms:
1099 General or miscellaneous [GEOCHEMISTRY]
3699 General or miscellaneous [MINERALOGY AND PETROLOGY]
7299 General or miscellaneous [SEISMOLOGY]
8199 General or miscellaneous [TECTONOPHYSICS]
Primary Liaison: Tyrone O Rooney, Michigan State University, East Lansing, United States
Primary Convener: Tyrone O Rooney, Michigan State University, Department of Earth and Environmental Sciences, East Lansing, United States
Conveners: Val Finlayson, University of Maryland College Park, Department of Geology, College Park, MD, United States, Matthew G Jackson, University of California Santa Barbara, Santa Barbara, United States and Aaron J Pietruszka, University of Hawaii at Manoa, Honolulu, HI, United States
Initial Evaluation Using Geochemical Data to Infer Tectonic Setting of Mt. Baekdu / Changbaishan Volcano (1052659)
Sung-Hyo Yun1, Cheolwoo Chang1 and Bo Pan2, (1)Pusan National University, Busan, Korea, Republic of (South), (2)Researcher, Institute of Geology, China Earthquake Administration, Beijing, China
Hemispheric geochemical dichotomy of the mantle is a legacy of austral supercontinent assembly and onset of deep continental crust subduction (1061845)
Matthew G Jackson, University of California Santa Barbara, Earth Science, Santa Barbara, United States and Francis Macdonald, University of California, Santa Barbara, Department of Earth Science, Santa Barbara, CA, United States
The Search for Long-lived Deep-Rooted Mantle Plumes in the Pacific (Invited) (1073114)
Anthony A P Koppers, Oregon State University, College of Earth Ocean and Atmospheric Sciences, Corvallis, United States, Jasper G Konter, University of Hawaiʻi at Mānoa, Earth Sciences, Honolulu, HI, United States and Matthew G Jackson, University of California Santa Barbara, Earth Science, Santa Barbara, United States
A Recurrent, Unusually Wide Double Chain in the Rurutu-Arago Hotspot Track (1079252)
Val Finlayson, University of Maryland College Park, Department of Geology, College Park, MD, United States, Maxim Ballmer, UCL, Dept. of Earth Sciences, London, United Kingdom, Jasper G Konter, University of Hawaiʻi at Mānoa, Earth Sciences, Honolulu, HI, United States, Matthew G Jackson, University of California Santa Barbara, Earth Science, Santa Barbara, United States, Kevin Konrad, University of Nevada Las Vegas, Geoscience, Las Vegas, United States and Anthony Koppers, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
ON RESOLVING MODELS FOR OCEAN ISLAND VOLCANISM (Invited) (1081598)
Barry B Hanan, San Diego State University, San Diego, United States, Hubert Staudigel, University of California San Diego, La Jolla, United States and Janne Blichert-Toft, Ecole Normale Supérieure de Lyon, CNRS, and Université de Lyon, Lyon, France
The geochemical evolution of a magmatically starved ocean island, Isla Santa Cruz, Galápagos Archipelago (1087502)
Emily Wilson, Franklin and Marshall College, Department of Earth and Environment, Lancaster, PA, United States, Karen S Harpp, Colgate Univ, Hamilton, NY, United States, Darin M Schwartz, Boise State University, Geosciences, Boise, United States and Rita Van Kirk, Colgate University, Brandon, SD, United States
The plume zoo of thermal LLSVPs (1094809)
Xiyuan Bao, University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, CA, United States and Carolina R Lithgow-Bertelloni, University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, United States
Linking Magmatism and Strain: A Study of the Pliocene Volcanism in the Turkana Depression (1096296)
Sahira Cancel Vazquez1, Tyrone O Rooney2, Alex Steiner2 and John W Kappelman3, (1)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, MI, United States, (2)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, United States, (3)University of Texas at Austin, Anthropology, Austin, TX, United States
Cosmogenic 3He exposure and 40Ar/39Ar dating of fault scarps and lavas on Isla Santa Cruz, Galápagos Archipelago: Linking low-volume magmatism to flank deformation (1097359)
Darin M Schwartz, Boise State University, Geosciences, Boise, United States, Karen S Harpp, Colgate Univ, Hamilton, NY, United States, Mark D Kurz, WHOI, Woods Hole, MA, United States and Emily Wilson, Franklin and Marshall College, Department of Earth and Environment, Lancaster, PA, United States
Spatial distribution and geochemical characterization of Icelandic mantle end-members: implications for plume geometry and melting processes (1104984)
Sunna Harðardóttir1,2, Simon Matthews2, Saemundur A Halldorsson2 and Matthew G Jackson1, (1)University of California Santa Barbara, Earth Science, Santa Barbara, United States, (2)University of Iceland, NordVulk, Institute of Earth Sciences, Reykjavik, Iceland
A method for examining recent drifts of Pacific hotspots (1105922)
Paul Wessel, University of Hawaii at Manoa, Earth Sciences, Honolulu, HI, United States, Andrew Chase, University of Hawaii at Manoa, Honolulu, United States, L. Neil Frazer, University of Hawaii at Manoa, Honolulu, HI, United States and Clinton P Conrad, University of Oslo, Centre for Earth Evolution and Dynamics, Oslo, Norway
Noble Gas Analysis on Plume Influenced Ocean Island Basalt from the Easter Salas y Gomez Seamount Chain (1111111)
Nathalie Niepagen, University of California Davis, Department of Earth and Planetary Sciences, Davis, CA, United States, Val Finlayson, University of Maryland, College Park, Department of Geology, College Park, United States and Sujoy Mukhopadhyay, University of California Davis, Department of Earth and Planetary Sciences, Davis, United States
Light and Heavy: Fe-Isotopes in Shield And Rejuvenated Hawaiian Lavas Point to Mineralogically Distinct Sources (1119296)
Michael Bizimis, University of South Carolina Columbia, Columbia, SC, United States, Paul Beguelin, Westfälische Wilhelms-Universität Münster, Institut für Mineralogie, Münster, Germany and Jasper G Konter, University of Hawaiʻi at Manoa, Honolulu, United States
Geochemical Insights into the Hawaiian Mantle Plume from the Newly Sampled Submarine Flank of Kaho’olawe Volcano (1125844)
Russell Benoy, Pomona College, Claremont, CA, United States, Jasper G Konter, University of Hawaiʻi at Manoa, Honolulu, United States, Natália Gauer Pasqualon, University of Hawaii at Manoa, SOEST, Honolulu, United States and Aaron J Pietruszka, United States Geological Survey, Denver, United States
Probing the Magmatic Differentiation System of Mt. Kenya - Petrographic Constraints from Optical and Electron Beam Analyses of Crystals (1126205)
Kirsten Fentzke1, Tyrone O Rooney1 and Sahira Cancel Vazquez2, (1)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, United States, (2)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, MI, United States
Geochemical Stratigraphy of a Continental Flood Basalt - the Peleketch section of the Turkana Depression (East African Rift System) (1135602)
Jessica Ruhukya1, Tyrone O Rooney2, Andrew Bollinger2 and John W Kappelman3, (1)Michigan State University, East Lansing, MI, United States, (2)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, United States, (3)University of Texas at Austin, Anthropology, Austin, TX, United States
Does Kamaʻehu Volcano Sample a “Kea” or “Loa” Mantle Source Within the Hawaiian Plume? (1137719)
Aaron J Pietruszka, University of Hawaii at Manoa, Honolulu, HI, United States, Marc D Norman, Australian National Univ, Canberra, ACT, Australia and Michael O Garcia, University of Hawaii at Manoa, Honolulu, United States
Barium Isotopes in Ocean Island Basalts as Tracers of Mantle Processes (1138403)
Ruixia Bai1, Matthew G Jackson1, Fang Huang2, Fred Moynier3, Gabriel Devos3, Saemundur A Halldorsson4, Lorraine E Lisiecki1, Haoming Yin2, Yihang Peng2 and Xiaoyun Nan2, (1)University of California Santa Barbara, Earth Science, Santa Barbara, United States, (2)University of Science and Technology of China, School of Earth and Space Sciences, Hefei, China, (3)Université Paris Cité, Institut de Physique du Globe de Paris, Paris, France, (4)University of Iceland, NordVulk, Institute of Earth Sciences, Reykjavik, Iceland
Investigating Geochemical Diversity of Seamounts Adjacent to the Main Hawaiian-EmperorSeamount Chain: Insights into the Petrogenesis of the Naifeh and Plumeria Seamount Chains. (1138637)
Geoffrey Montour1, V. Dorsey Wanless2, Darin M Schwartz2, Natália Gauer Pasqualon3 and Andrea Balbas4, (1)Boise State University, Boise, ID, United States, (2)Boise State University, Geosciences, Boise, United States, (3)University of Hawaii at Manoa, SOEST, Honolulu, United States, (4)California State University Long Beach, Long Beach, United States
Probing the Relationship Between Magmatism and Extension- Highly Alkaline Mid-Miocene Lavas from Lothagam, Turkana, East African Rift System (1148251)
Andrew Bollinger1, Tyrone O Rooney1, Sahira Cancel Vazquez2, Alex Steiner1 and John W Kappelman3, (1)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, United States, (2)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, MI, United States, (3)University of Texas at Austin, Anthropology, Austin, TX, United States
Discerning Magma Chamber Evolution During Early Stages of Rift Development Using the Kalakol Basalts of the East African Rift System (1148726)
Shelbi Hughes1, Tyrone O Rooney1, Andrew Bollinger1, Alex Steiner1, Nicholas Mariita2 and John W Kappelman3, (1)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, United States, (2)Dedan Kimathi University of Technology, Geothermal Training and Research Institute, Nyeri, Kenya, (3)University of Texas at Austin, Anthropology, Austin, TX, United States
Noble Gas Isotopic Insights into Primordial and Recycled Volatiles in the Cook-Austral HIMU Mantle (1163940)
Xinmu Zhang, Washington University in St. Louis, St. Louis, United States; Scripps Institution of Oceanography, La Jolla, United States, Rita Parai, Washington University in St. Louis, Department of Earth and Planetary Sciences, St. Louis, MO, United States and John C Lassiter, University of Texas at Austin, Dept. of Geological Sciences, Jackson School of Geosciences, Austin, TX, United States
Compositionally Diverse Alkalic Volcanism Along the Emperor Seamount Chain (1170598)
Reed B Mershon1, Aaron J Pietruszka1, Michael O Garcia1, Mike Rhodes2, Michael J Vollinger2 and Brian R Jicha3, (1)University of Hawaii at Manoa, Honolulu, HI, United States, (2)University of Massachusetts Amherst, Amherst, United States, (3)University of Wisconsin Madison, Madison, WI, United States
Intraplate Lithospheric Deformation and the Formation of a Large Volcanic Regions (1173548)
Cesar R Ranero, ICREA at Institute of Marine Sciences-CSIC, Barcelona, Spain, Laura Gomez de la Pena, Barcelona-CSI, ICM-CSIC, Barcelona, Spain, Manel Prada, ICM-CSIC, Barcelona-CSI, Geosciences, Barcelona, Spain, Patricia Cadenas, Memorial University of Newfoundland, Earth Sciences, St John's, Canada, Irene Merino, Barcelona Center for Subsurface Imaging, CSIC, ICM, Barcelona, Spain, Clara Estela Jimenez Tejero, Institute of Marine Sciences-CSIC, Barcelona (Spain, Spain, Alejandra Neri, ICM-CSIC, Barcelona Center for Subsurface Imaging, Barcelona, Spain, Arantza Ugalde, ICM-CSIC, Barcelona, Spain and Ingo Grevemeyer, GEOMAR, Kiel, Germany
Resolving Source Components for Low-Ti Lavas in a Continental Flood Basalt Province using Sr-Nd-Pb-Hf Isotopes (1184989)
Susan R Krans1, Tyrone O Rooney2, John W Kappelman3, Gezahegn Yirgu4 and Dereje Ayalew4, (1)Grand Valley State University, Allendale, MI, United States, (2)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, United States, (3)University of Texas at Austin, Anthropology, Austin, TX, United States, (4)Addis Ababa University, School of Earth Sciences, Addis Ababa, Ethiopia
