V14A:
Oceanic Intraplate Volcanism II


Submit an Abstract to this Session


Session ID#: 57325

Session Description:
Oceanic intraplate volcanism can be related to mantle plume activity and/or within-plate tectonic processes. The interplay between tectonic, volcano-tectonic, and igneous activity control compositional evolution, growth, and destruction of seamounts and ocean islands. These processes have been a focus of research for many years, but are only partially understood. Processes and timescales controlling the evolution of oceanic intraplate volcanoes, and their geometry and longevity, can be studied at macroscopic- to microscopic scale. The integration of these processes in a coherent holistic view, however, is key to our comprehension of ocean island volcanoes and their origins.

The aim of the session is to discuss recent research on a variety of topics on (submarine and subaerial) oceanic intraplate volcanism, to test similarities and differences between the various volcanic groups/archipelagos, and to improve our understanding of evolution and processes of oceanic intraplate volcanoes in general.

Primary Convener:  Lisa K. Samrock, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Conveners:  Thor H Hansteen, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, Ricardo Ramalho, Instituto Dom Luiz, Universidade de Lisboa, Lisboa, Portugal and Dennis Geist, National Science Foundation, Arlington, VA, United States
Primary Liaison:  Lisa K. Samrock, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Chairs:  Lisa K. Samrock, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany and Ricardo Ramalho, Instituto Dom Luiz, Universidade de Lisboa, Lisboa, Portugal
OSPA Liaison:  Dennis Geist, University of Idaho, Moscow, ID, United States

Cross-Listed:
  • MR - Mineral and Rock Physics
  • NH - Natural Hazards
  • OS - Ocean Sciences
Index Terms:

3037 Oceanic hotspots and intraplate volcanism [MARINE GEOLOGY AND GEOPHYSICS]
3075 Submarine tectonics and volcanism [MARINE GEOLOGY AND GEOPHYSICS]
3618 Magma chamber processes [MINERALOGY AND PETROLOGY]
8428 Explosive volcanism [VOLCANOLOGY]

Abstracts Submitted to this Session:

Temporal and geochemical evolution of the Afanasy Nikitin - 85° E Ridge, Central Indian Ocean, R/V SONNE cruise SO258/1 (374019)
Stephan Homrighausen1, Kaj Hoernle1, Joerg Geldmacher1, Folkmar Hauff1, Maxim Portnyagin1, Reinhard Werner1, Bruce F Schaefer2, Jo-Anne Wartho1 and Dieter Garbe-Schönberg3, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)Macquarie University, Sydney, Australia, (3)Institute of Geosciences, Geology, Kiel, Germany
Plume-Ridge Interaction During Large Igneous Province Formation (412271)
Pilar Madrigal, University of Costa Rica, San Jose, Costa Rica, Esteban Gazel, Cornell University, Ithaca, NY, United States, Kennet E Flores, University of North Carolina at Chapel Hill, Department of Earth, Marine and Environmental Sciences, Chapel Hill, NC, United States, Michael Bizimis, University of South Carolina, School of Earth-Ocean-Environment, Columbia, United States and Brian R Jicha, University of Wisconsin-Madison, Department of Geoscience, Madison, United States
Volatile composition of asthenosphere below NW Pacific lithosphere revealed by petit-spot basalt (403658)
Yuki Katsuragi, Tohoku University, Sendai, Japan, Naoto Hirano, Tohoku University, Center for Northeast Asian Studies, Sendai, Japan, Yuki Sato, Hokkaido University, Sapporo, Japan and Kenji Shimizu, JAMSTEC, Kochi, Japan
Recent eruptions between 2009-2018 discovered at West Mata submarine volcano (NE Lau Basin, SW Pacific) and characterized by new ship, AUV, and ROV data (382128)
William W. Chadwick Jr, Dr. Kenna Harmony Rubin, Ph.D., Univ Hawaii, Honolulu, HI, United States, Susan G Merle, Oregon State University, Cooperative Institute for Marine Ecosystem and Resource Studies, Newport, United States and Robert W Embley, Oregon State University, CIMRS, Corvallis, OR, United States
Hawaii’s subaerial intraplate volcanic activity: Thermal infrared measurements of Kilauea’s lava lake and flows (425745)
James Oliver Thompson, University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, PA, United States and Prof. Michael S Ramsey, PhD, University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, United States
Time Series Study of Hydrothermal Venting at Lōʻihi Seamount Following The 2018 Kilauea Eruption (415687)
Christopher R German, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Darlene Sze Shien Lim, NASA Ames Research Center, Moffett Field, CA, United States, John A Breier Jr, University of Texas Rio Grande Valley, Edinburg, TX, United States, Julie A Huber, Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States, Shannon Kobs Nawotniak, Idaho State University, Pocatello, ID, United States, Everett Shock, Arizona State Univ, Tempe, United States, Nicole Raineault, Ocean Exploration Trust, Narragansett, United States and EV Nautilus NA100 and NASA SUBSEA Research Team

See more of: Volcanology, Geochemistry and Petrology