V13A:
Oceanic Intraplate Volcanism I


Submit an Abstract to this Session


Session ID#: 57319

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:  Thor H Hansteen, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany

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:

New Eruptive Ages and New Perspectives on the Eastern Galápagos Archipelago (Invited) (383675)
Karen S Harpp1, Darin M Schwartz2, Zachary Cleary1, Emily Wilson3, Regina Pimentel1, Jake Mahr1, Maggie McGuire1, Hannah Bercovici4 and Rita Van Kirk1, (1)Colgate University, Earth and Environmental Geosciences, Hamilton, United States, (2)Boise State University, Department of Geosciences, Boise, ID, United States, (3)Franklin and Marshall College, Department of Earth and Environment, Lancaster, PA, United States, (4)Colgate University, Hamilton, NY, United States
Identifying and Using Erosional Terraces on Seamounts to Constrain Paleogeography and Subsidence in the Galápagos Archipelago (434516)
Darin M Schwartz, Boise State University, Geosciences, Boise, ID, United States, Adam A Soule, WHOI, Narragansett, United States and V. Dorsey Wanless, WHOI, Woods Hole, United States
Komatiites from the core-mantle boundary in a modern plume (410996)
Esteban Gazel, Cornell University, Department of Earth and Atmospheric Sciences, Ithaca, United States, Alexander V Sobolev, University Grenoble Alpes, ISTerre Institute of Earth Sciences, Grenoble, France, Michael Bizimis, University of South Carolina, School of Earth-Ocean-Environment, Columbia, United States, Cornelia Class, Lamont -Doherty Earth Observatory of Columbia University, Palisades, United States, Valentina G. Batanova, ISTerre, Unversite J Fourier, Grenoble, France and Brian R Jicha, University of Wisconsin-Madison, Department of Geoscience, Madison, United States
Plume Periodicity: Power Spectrum Analysis of Hotspot Melt Production (386574)
Thomas A Morrow, University of Idaho, Moscow, United States and Eric L Mittelstaedt, University of Idaho, Department of Earth and Spatial Sciences, Moscow, ID, United States
GEODYNAMIC-PETROLOGICAL MODELLING OF NEAR-CONTINENT VOLCANIC ISLANDS: THE CASE OF THE EASTERN ATLANTIC (418217)
Antonio Manjón-Cabeza Córdoba, Univ. Oslo, CEED, Oslo, Norway and Maxim Ballmer, Tokyo Institute of Technology, ELSI, Tokyo, Japan; University College London, ETH Zürich, London, United Kingdom
Investigating the Origin of Intraplate Volcanism in the Canary Islands (420627)
Chelsea M Allison1, Lowell Moore2, Esteban Gazel3, Robert J Bodnar2 and Juan-Carlos Carracedo4, (1)Cornell University, Earth and Atmospheric Sciences, Ithaca, NY, United States, (2)Virginia Polytechnic Institute and State University, Department of Geosciences, Blacksburg, VA, United States, (3)Cornell University, Department of Earth and Atmospheric Sciences, Ithaca, United States, (4)Universidad de Las Palmas de Gran Canaria, Departamento de Física-Geología, Las Palmas de Gran Canaria, Spain
Deciphering magma plumbing system at Fogo volcano using Geodetic (InSAR, GNSS and Gravimetric) data (392077)
Rui Manuel Silva Fernandes1, Stephanie Dumont2, Dora Roque3,4, Bento Martins2, Ana Paula Falcão4, Machiel Simon Bos5 and Sandra Heleno da Silva4, (1)University of Beira Interior, SEGAL (UBI/IDL), Covilhã, Portugal, (2)Universidade da Beira Interior, SEGAL (UBI/IDL), Covilhã, Portugal, (3)Laboratório Nacional de Engenharia Civil, Lisboa, Portugal, (4)Instituto Superior Técnico, CERIS, Lisboa, Portugal, (5)Instituto Dom Luiz (IDL), University of Beira Interior (UBI), SEGAL, Covilhã, Portugal
Crystal Segregation in Vertical Conduits as a Potential Process to Explain Magma Differentiation in Oceanic Islands (357389)
Sebastien Pilet1, Evelyne Tornare2, Annelore Bessat2 and Francois Bussy2, (1)University of Lausanne, Institute of Earth Sciences, Lausanne, Switzerland, (2)University of Lausanne, Lausanne, Switzerland

See more of: Volcanology, Geochemistry and Petrology