V24A:
From Hydrothermal Systems to Mud Volcanoes: Structure, Evolution, and Monitoring of Active and Fossil Piercements I

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Session ID#: 35693

Session Description:
Hydrothermal systems, mud volcanoes, sedimentary-hosted hydrothermal systems and piercement structures are usually characterized by deep-rooted plumbing systems and complex geochemical reactions where life can adapt to thrive in extremely harsh environments. Geophysical signals associated to such environments are often ambiguous and difficult to interpret. However, the elevated pore pressures often encountered at depth and the high flow rates make these environments ideal natural laboratories to investigate precursors of seismic events and dynamically triggered geological responses.

The session welcomes studies related to the: 1) investigation of such systems with geophysical methods; 2) geochemical reactions occurring at depth and at the surface including microbiological studies; 3) survey and the monitoring of these settings to learn the dynamics of the extinct systems from the active ones; 4) experimental and numerical studies; 5) study of palaeo piercements and their effects on palaeo-climates; 6) relation between the pre-existing geology and the emplacement of piercement structures.
Primary Convener:  Matteo Lupi, University of Geneva, Geneva, Switzerland
Convener:  Adriano Mazzini, University of Oslo, Centre for Earth Evolution and Dynamics, Oslo, Norway
Chairs:  Adriano Mazzini, University of Oslo, Centre for Earth Evolution and Dynamics, Oslo, Norway and Matteo Lupi, University of Geneva, Geneva, Switzerland
OSPA Liaison:  Matteo Lupi, University of Geneva, Geneva, Switzerland

Cross-Listed:
  • B - Biogeosciences
  • S - Seismology
  • T - Tectonophysics
Index Terms:

8424 Hydrothermal systems [VOLCANOLOGY]
8426 Mud volcanism [VOLCANOLOGY]

Abstracts Submitted to this Session:

Cryptic oxygen oases: Hypolithic photosynthesis in hydrothermal areas and implications for Archean surface oxidation (236710)
Jeff R Havig, University of Minnesota, Earth Sciences, Minneapolis, United States and Trinity L Hamilton, Pennsylvania State University Main Campus, University Park, PA, United States
Anatomy of Old Faithful hydrothermal system from subsurface seismic imaging of the Yellowstone Upper Geyser Basin (248798)
Sin-Mei Wu1, Fan-Chi Lin1, Jamie Farrell2, Kevin Michael Ward1, Marianne S. Karplus3 and Robert B Smith4, (1)University of Utah, Salt Lake City, UT, United States, (2)University of Utah, Department of Geology and Geophysics, Salt Lake City, United States, (3)University of Texas at El Paso, Geological Sciences, El Paso, TX, United States, (4)University of Utah, Geology & Geophysics, Salt Lake City, UT, United States
Plumbing the depths of Yellowstone’s hydrothermal system from helicopter magnetic and electromagnetic data (264046)
Carol Finn, USGS, Geology, Geophysics, and Geochemistry Science Center, Denver, United States, Paul Bedrosian, USGS, Denver, CO, United States, W. Steven Holbrook, Virginia Polytechnic Institute and State University, Geosciences, Blacksburg, VA, United States, Esben Auken, Aarhus University, Aarhus C, Denmark, Jacob B. Lowenstern, USGS, Menlo Park, CA, United States, Shaul Hurwitz, U.S. Geological Survey, Menlo Park, United States, Kenneth W W Sims, University of Wyoming, Geology & Geophysics, Laramie, United States, Bradley Carr, University of Wyoming, Geology and Geophysics, Laramie, United States and Kira Dickey, University of Wyoming, Department of Geology and Geophysics, Laramie, WY, United States
Back-Projection Imaging of extended, high-frequency pre-, co-, and post-eruptive seismicity at El Jefe Geyser, El Tatio Geyser Field, Chile (293974)
Cyndi L Kelly, Stanford University, Stanford, CA, United States, Jesse Fisher Lawrence, Stanford University, Los Altos Hills, CA, United States and Gregory C Beroza, California Geological Survey Menlo Park, Menlo Park, CA, United States
Characterizing the dynamics of hydrothermal systems with muon tomography: the case of La Soufrière de Guadeloupe (249781)
Marina Rosas-Carbajal1, Jacques Marteau2, Matias Tramontini3, Jean de Bremond d Ars4, Yves Le Gonidec5, Bruno Carlus2, Jean-Christophe Ianigro2, Sébastien Deroussi6, Jean-Christophe Komorowski1 and Dominique Gibert7, (1)Institut de Physique du Globe de Paris, Paris, France, (2)IPNL, Lyon, France, (3)Universidad Nacional de La Plata, Facultad de Ciencias Astronomicas y Geofisicas, La Plata, Argentina, (4)CNRS, Geosciences Rennes UMR 6118, Rennes, France, (5)CNRS, Paris Cedex 16, France, (6)Observatoire volcanologique et sismologique de Guadeloupe, Institut de Physique du Globe de Paris, Paris, France, (7)Géosciences Rennes, Université Rennes 1, Rennes Cedex, France
Long-lasting Microbial Methane Release at the Aquitaine Shelf Break (Bay of Biscay): Relation with the (Plio)-Pleistocene Sedimentary Progradation of the Continental Margin (231144)
Stéphanie Dupré1, Guillaume Michel1, Catherine Pierre2, Livio Ruffine3, Carla Scalabrin1, Axel Ehrhold1, Benoit Loubrieu1, Emeric Gautier1, Agnes Baltzer4, Patrice Imbert5, Anne Battani6, Eric Deville7, Pauline Dupont8, Yannick Thomas8 and Estelle Théréau8, (1)IFREMER, Plouzané, France, (2)Sorbonne University, LOCEAN, Paris, France, (3)Geo-Ocean, Univ. Brest-CNRS-IFREMER, Plouzane, France, (4)Université de Nantes, Nantes, France, (5)Total SA EP France, Pau, France, (6)IFP Energies nouvelles, Rueil-Malmaison, France, (7)IFP Energies Nouvelles, Rueil-Malmaison, France, (8)Geo-Ocean, UMR6538, CNRS, Univ Brest, Ifremer, Plouzané, France
Surface deformation of Ayaz-Akhtarma Mud volcano in Azerbaijan detected by ALOS/ALOS-2 InSAR and its source modeling (235543)
Kento Iio, Hokkaido University, Sapporo, Japan and Masato Furuya, Hokkaido University, Department of Earth and Planetary Sciences, Earth and Planetary Dynamics, Sapporo, Japan

See more of: Volcanology, Geochemistry and Petrology