V003
A multidisciplinary approach to investigating subduction zone fluids and their role in Earth evolution

Session ID#: 74359

Session Description:
Fluids in subduction zones are believed to play an essential role in the long-term, deep geochemical cycles of the elements through magmatism and metasomatism in the upper mantle. Such fluids have previously been thought of as C-H-O fluids. However, advances in experimental techniques and geochemical analyses of fluids trapped inside mantle-derived samples have revealed very high solute contents of rock-forming elements in subduction zone related fluids, particularly under supercritical conditions. A spectrum of heterogeneous compositions of high-pressure, high temperature fluids may flow through the mantle. Experiments and geochemical modeling are enabling a better understanding of fluid flow and elemental transfer in the mantle.
Index Terms:

1011 Thermodynamics [GEOCHEMISTRY]
1043 Fluid and melt inclusion geochemistry [GEOCHEMISTRY]
3621 Mantle processes [MINERALOGY AND PETROLOGY]
3630 Experimental mineralogy and petrology [MINERALOGY AND PETROLOGY]

Primary Convener:  Ronit Kessel, Hebrew University of Jerusalem, Jerusalem, Israel
Conveners:  Dimitri A Sverjensky, Johns Hopkins University, Department of Earth & Planetary Sciences, Baltimore, MD, United States and Craig E Manning, Univ California Los Angeles, Los Angeles, CA, United States
Primary Liaison:  Ronit Kessel, Hebrew University of Jerusalem, Jerusalem, Israel
 
Boron isotopic constraints on slab and mantle-derived fluid and melt sources of Nicaraguan volcanics (487735)
Mattison H. Barickman, Stephen J. Turner, Rita Parai, David A Fike, Mike Krawczynski and Kun Wang, Washington University in St. Louis, Department of Earth and Planetary Sciences, St. Louis, MO, United States
 
A radiogenic isotopes perspective of island arc volcanism (494552)
Catherine Chauvel, Institut de Physique du Globe de Paris, Paris, France
 
Dissolution Susceptibility of Amorphous Carbon versus Crystalline Graphite in High-Pressure Aqueous Fluids (495004)
Simone Tumiati, Università di Milano, Dip. Scienze della Terra, Milano, Italy
 
New genesis of felsic magma: the unmixing of slab-derived supercritical liquid (498043)
Hajime Taniuchi, Hokkaido University, Department of Natural History Science, Sapporo, Japan, Takeshi Kuritani, Hokkaido University, Department of Earth and Planetary Sciences, Sapporo, Japan, Tetsuya Yokoyama, Tokyo Institute of Technology, Tokyo, Japan, Eizo Nakamura, Okayama University, Okayama, Japan and Mitsuhiro Nakagawa, Hokkaido Univ, Sapporo, Japan
 
The Solubility of CO2 and H2O in Granitic Melts at Pressures Relevant for Subduction Zones (505568)
Fabio Cafagna, ETH Zurich Swiss Federal Institute of Technology Zurich, Institute of Geochemistry and Petrology, Zurich, Switzerland, Max W Schmidt, ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland and Simone Tumiati, Università degli Studi di Milano, Dipartimento di Scienze della Terra, Milan, Italy
 
The role of deep hydrous partial melt zone in subduction zone magmatism (513756)
Eiichi Takahashi, Guangzhou Institute of Geochemistry, High Pressure Center, State Key Laboratory of Isotope Geochemistry, Guangzhou, China and Jintuan Wang, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China
 
Helium and carbon isotopes in southern Costa Rica and western Panama (517101)
Peter H Barry1, Bina S Patel2, Maarten J de Moor3, Mayuko Nakagawa4, Donato Giovannelli5, Carlos J Ramirez6, Matthew O Schrenk7, Esteban Gazel8, Alan M Seltzer9, Saemundur A Halldorsson10, Justin T Kulongoski2, Stephen J. Turner11, Chris J Ballentine12, Tobias P Fischer13, David R Hilton2, Cristian Virrueta2, Keith Blackmon2 and Karen G Lloyd14, (1)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (2)Univ California San Diego, La Jolla, CA, United States, (3)Observatorio Vulcanológico y Sismológico de Costa Rica, Heredia, Costa Rica, (4)Earth-Life Science Institute, Meguro, Tokyo, Japan, (5)University of Naples Federico II, Department of Biology, Naples, Italy, (6)Servicio Geológico Ambiental (SEGEOAM) - Costa Rica, Heredia, Costa Rica, (7)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, MI, United States, (8)Cornell University, Earth and Atmospheric Sciences, Ithaca, NY, United States, (9)Scripps Institution of Oceanography, La Jolla, CA, United States, (10)University of Iceland, Institute of Earth Sciences, Reykjavik, Iceland, (11)Washington University in St. Louis, Department of Earth and Planetary Sciences, St. Louis, MO, United States, (12)University of Oxford, Department of Earth Sciences, Oxford, United Kingdom, (13)University of New Mexico, Department of Earth and Planetary Sciences, Albuquerque, NM, United States, (14)University of Tennessee, Knoxville, TN, United States
 
Supercritical fluids in the system NaAlSi3O8 − H2O at high pressures and temperatures (526681)
Yang Li, University of California Los Angeles, Los Angeles, CA, United States and Craig E Manning, Univ California Los Angeles, Los Angeles, CA, United States
 
Decreasing temperature and increasing XCO2 boost silica dissolution in the system MgO-SiO2-H2O-CO2 (543163)
Daniel Fineman, University of California Los Angeles, Los Angeles, CA, United States and Craig E Manning, Univ California Los Angeles, Los Angeles, CA, United States
 
Water-saturated solidus and second critical endpoint of peridotite determined from liquid texture and chemistry (558652)
Jintuan Wang, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China, Eiichi Takahashi, Guangzhou Institute of Geochemistry, High Pressure Center, State Key Laboratory of Isotope Geochemistry, Guangzhou, China and Xiaolin Xiong, GIG Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China
 
Stability of Immiscible Hydrocarbons in Aqueous Subduction Zone Fluids (572980)
Jingyi Huang1, Isabelle Daniel2, Dimitri A Sverjensky1, Herve Cardon3 and Gilles Montagnac3, (1)Johns Hopkins University, Department of Earth & Planetary Sciences, Baltimore, MD, United States, (2)University Lyon 1, Villeurbanne, France, (3)Ecole Normale Supérieure Lyon, Lyon, France
 
Geochemistry and petrogenesis of the Neoarchean Sandur metavolcanic rocks (600824)
Subarna Baidya, Dhanbad, Jharkhand, India, Anshuman Giri, IIT ISM DHANBAD, APPLIED GEOLOGY, Dhanbad, India and Rajagopal Anand, Indian Institute of Technology(Indian School of Mines), Dhanbad, Department of Applied Geology, Dhanbad, India
 
Linking hydrous mineral chemistry to fluid speciation in the subduction channel (604583)
Meghan R Guild1, Christy B. Till1, Richard L Hervig2, Everett Shock2, Tomoyuki Mizukami3 and Simon Richard Wallis4, (1)Arizona State University, School of Earth & Space Exploration, Tempe, AZ, United States, (2)Arizona State University, Tempe, AZ, United States, (3)Kanazawa University, Kanagawa, Japan, (4)University of Tokyo, Bunkyo-ku, Japan
 
Thermodynamic solution properties of the albite dissolution process and its effect on the solubility of quartz at high pressures and temperatures (632887)
Adam R Makhluf, University of California Los Angeles, Los Angeles, CA, United States and Craig E Manning, Univ California Los Angeles, Los Angeles, CA, United States
See more of: Volcanology, Geochemistry and Petrology
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