V022
Frontiers of Subduction Zone Metamorphism: Fluids, Reactions, and Dynamics
Session ID#: 78349
Session Description:
Exhumed high pressure, ultrahigh pressure, and other related metamorphic rocks are the primary messengers from the deepest parts of subduction zones and represent key rocks to understand plate tectonics and the evolution of the Earth. Their study allows us to better constrain the dynamics of subduction interface processes, geochemical exchanges between the crust and mantle, spatiotemporal scales of fluid migration and interaction, as well as the thermal structures of subduction zones. However, the physicochemical properties and evolution of fluids at the metamorphic reaction front, and the velocity and rate of the fluid flow are still openly debatable.
We invite submissions from state-of-the-art research of subduction-related metamorphic rocks within a multidisciplinary scope, including field observations, geochemistry, experimental petrology, geochronology, and numerical modeling. Studies that help to constrain and link the roles of fluids, rates, and timescales of metamorphic reactions occurring during subduction and exhumation are particularly encouraged.
Index Terms:
1031 Subduction zone processes [GEOCHEMISTRY]
3652 Pressure-temperature-time paths [MINERALOGY AND PETROLOGY]
3653 Fluid flow [MINERALOGY AND PETROLOGY]
3660 Metamorphic petrology [MINERALOGY AND PETROLOGY]
Primary Convener: Kennet E Flores, CUNY Brooklyn College, Brooklyn, NY, United States
Conveners: Tatsuki Tsujimori, Tohoku University, Center for Northeast Asian Studies, Sendai, Japan, Alicia M Cruz-Uribe, University of Maine, Orono, ME, United States and Celine Martin, American Museum of Natural History, Department of Earth and Planetary Sciences, New York, NY, United States
Primary Liaison: Kennet E Flores, Brooklyn College of the City University of New York, Department of Earth and Environmental Sciences,, Brooklyn, NY, United States
Metamorphic reactions, deformation and fluid migration during early subduction (Invited) (569690)
Philippe Agard, Sorbonne Université, ISTeP Institut des Sciences de la Terre de Paris, Paris, France, Cécile Prigent, University Joseph Fourier Grenoble, Grenoble, France, Mathieu Soret, University of British Columbia, Earth, Environmental and Geographic Sciences, Kelowna, BC, Canada, Benoît Dubacq, ISTeP Institut des Sciences de la Terre de Paris, Sorbonne Université, Paris Cedex 05, France and Stephane Guillot, ISTerre Institute of Earth Sciences, Grenoble, France
Oxygen and hydrogen isotopes compositions of circum-pacific blueschist-facies phengites: Insights into isotopic slab-derived fluid signatures (581293)
Tatsuki Tsujimori, Tohoku University, Center for Northeast Asian Studies, Sendai, Japan, Daniel Pastor-Galan, Tohoku University, Frontier Research Institute for Interdisciplinary Sciences, Sendai, Japan and Antonio Álvarez-Valero, Universidad de Salamanca, Department of Geology, Salamanca, Spain
Strontium, Neodymium, Iron Isotope Geochemistry of Clinohumite-bearing Deserpentinization Veins from Erro-Tobbio, Italy (582243)
Claire Hines1, Caitlin Brown1, Paul G Starr1, Michael Tappa1, Ethan Baxter1, Marco Scambelluri2, Edward Inglis3 and Fred Moynier3, (1)Boston College, Department of Earth and Environmental Sciences, Chestnut Hill, MA, United States, (2)University of Genova, Italy, Genova, Italy, (3)University of Paris, Institut de Physique du Globe de Paris, Paris, France
Understanding Fluid Behavior in Monviso Using Chlorite-Bearing Altered Eclogites from the Lower Shear Zone (590233)
Abigail Boak1, William Floyd Hoover2, Sarah Penniston-Dorland2, Philip M Piccoli3 and Richard D Ash4, (1)Mount Holyoke College, South Hadley, MA, United States, (2)University of Maryland, College Park, MD, United States, (3)University of Maryland College Park, College Park, MD, United States, (4)Univ Maryland, College Park, MD, United States
Trace-element immobility during prograde subduction metamorphism: a metabasalt transect through Alpine Corsica (590356)
Nancy Weinheimer1, Maureen D Feineman1, Joshua Garber1, Andrew Smye1 and Alberto Vitale Brovarone2,3, (1)Pennsylvania State University Main Campus, Department of Geosciences, University Park, PA, United States, (2)Università degli Studi di Torino, Dipartimento di Scienze della Terra, Torino, Italy, (3)Sorbonne Université, IMPMC Institut de Minéralogie et de Physique des Matériaux et de Cosmochimie, Paris, France
Open-system major-element behavior during prograde subduction metamorphism: a metabasalt transect through Alpine Corsica (590459)
Joshua M Garber1, Maureen D Feineman1, Andrew Smye1, Alberto Vitale Brovarone2 and Nancy Weinheimer1, (1)Pennsylvania State University Main Campus, Department of Geosciences, University Park, PA, United States, (2)Università degli Studi di Torino, Dipartimento di Scienze della Terra, Torino, Italy
Petrological modeling of subduction of oceanic crust: insights into slab dehydration and melting (596019)
David Hernández Uribe, Colorado School of Mines, Geology and Geological Engineering, Golden, CO, United States, Juan David Hernández-Montenegro, Universidad Nacional de Colombia, Bogota, Colombia and Richard Mark Palin, Colorado School of Mines, Department of Geology and Geological Engineering, Golden, United States
Mixed Igneous Origin and Peak Metamorphic Pressure and Temperature Conditions of Blocks in a Mélange: Possible Evidence for Sedimentary Mixing (601971)
Jessie E. Shields, California State University Fresno, Earth & Environmental Sciences Dept., Fresno, CA, United States and John Wakabayashi, California State University Fresno, Earth and Environmental Sciences, Fresno, CA, United States
High volumes of mineral dissolution by localized fluid pulses in UHPM metasediments of Lago di Cignana, Western Alps (605476)
Hugo van Schrojenstein Lantman1, David Wallis2, Marco Scambelluri3 and Matteo Alvaro1, (1)University of Pavia, Department of Earth and Environmental Sciences, Pavia, Italy, (2)Utrecht University, Department of Earth Sciences, Utrecht, Netherlands, (3)University of Genova, Italy, Genova, Italy
Zircon Geochronology of Subducted Crust: Interpreting Zircon-Garnet Equilibrium and Disequilibrium, North Qaidam Terrane, Western China (614050)
Chris G Mattinson1, Wesley R. Weisberg1, David Hernández-Uribe2, Katie Stubbs1 and Jianxin Zhang3, (1)Central Washington University, Geological Sciences, Ellensburg, WA, United States, (2)Colorado School of Mines, Geology and Geological Engineering, Golden, CO, United States, (3)Chinese Academy of Geological Sciences, Institute of Geology, Beijing, China
Tracing the Release of Oxidizing Fluids during Subduction: Insights from Zoned Fe Isotope Measurements within Garnet (615628)
Paul G Starr1, Anna R Gerrits2, Edward Inglis3, Besim Dragovic4, Ethan Baxter1, Kevin W Burton5 and Fred Moynier6, (1)Boston College, Department of Earth and Environmental Sciences, Chestnut Hill, MA, United States, (2)Boston College, Department of Earth and Environmental Sciences, Chestnut Hill, United States, (3)University of Paris, Institut de Physique du Globe de Paris, Paris, France, (4)University of South Carolina, School of Earth, Ocean and Environment, Columbia, United States, (5)University of Durham, Department of Earth Sciences, Durham, United Kingdom, (6)Institut de Physique du Globe de Paris, Université Paris Diderot, CNRS UMR 7154, Paris, France
Highly Variable Fluid Composition Associated with 1.8 Gya UHP Subduction Metamorphism in West Greenland (619236)
William E Glassley, University of California Davis, Davis, CA, United States, John Korstgård, Department of Geoscience, Arhus, Denmark and Kai Sorensen, Geological Survey of Denmark and Greenland, Retired, Copenhagen, Denmark
Metamorphic evolution and exhumation of high-pressure assemblages of the Cordillera Real (Ecuador) (632383)
Kennet E Flores, CUNY Brooklyn College, Brooklyn, NY, United States, Jeffrey Marsh, Laurentian University, Mineral Exploration Research Centre, Harquail School of Earth Sciences, Sudbury,, ON, Canada, Benjamin Strauss, CUNY Queens College, School of Earth and Environmental Sciences, Flushing, NY, United States and Nicolás Estrada, Laurentian University, Harquail School of Earth Sciences, Sudbury, ON, Canada
Re-evaluation of Lead Isotope Compositions of Ni-Fe Alloy Associated with Antigorite Serpentinite from the Josephine Ophiolite, USA (485731)
Mayu Kakefuda, Tohoku University, Sendai, Japan, Tatsuki Tsujimori, Tohoku University, Center for Northeast Asian Studies, Sendai, Japan, Katsuyuki Yamashita, Okayama University, Okayama, Japan and Yoshiyuki Iizuka, Academia Sinica, Institute of Earth Sciences, Taipei, Taiwan
Juxtaposition of HP Rocks Exhumed from Different Maximum Pressures After Subduction: P–T Evolution of Lawsonite-bearing Schists from the Chinese SW Tianshan (487386)
Bin Xia, China University of Geosciences Wuhan, School of Earth Sciences, Wuhan, China, Michael Brown, Univ Maryland, College Park, MD, United States and Lifei Zhang, Peking Univ, Beijing, China
Distribution and redistribution of Mo and Tl in high pressure-low temperature metamorphic rocks (493772)
Richard M Gaschnig, University of Massachusetts Lowell, Lowell, MA, United States, Shelby T Rader, Indiana University Bloomington, Bloomington, United States, Michael Mirakian, University of Massachusetts Lowell, Lowell, United States and Gray E Bebout, Lehigh University, Dept. Earth and Environmental Sciences, Bethlehem, PA, United States
Lawsonite oxygen isotope and trace element records of subduction fluids (500549)
Patricia Kang, University of Minnesota Twin Cities, Minneapolis, MN, United States, Donna L Whitney, University of Minnesota Twin Cities, Department of Earth and Environmental Sciences, Minneapolis, MN, United States, Laure Martin, University of Western Australia, Centre for Exploration Targeting, Perth, WA, Australia, Alberto Vitale Brovarone, IMPMC - Institut de Mineralogie et de Physique des Materiaux et de Cosmochimie, Paris, France, Edward D Ghent, University of Calgary, Calgary, AB, Canada and Katherine F Fornash, Ohio University, Athens, OH, United States
Kinetics of near hydrous solidus reaction through dehydration melting of nominally anhydrous minerals: an analogue experiment in jadeite-spodumene system (515075)
Naoko Takahashi1, Takayuki Nakatani2, Tatsuki Tsujimori3 and Michihiko Nakamura1, (1)Tohoku University, Sendai, Japan, (2)Geological Survey of Japan, AIST, Tsukuba, Japan, (3)Tohoku University, Center for Northeast Asian Studies, Sendai, Japan
Melts from continental crust at mantle depths: a metasomatic agent still preserved as melt inclusions in eclogite/pyroxenite garnets (515881)
Alessia Borghini1, Silvio Ferrero1, Patrick J O'Brien1, Bernd Wunder2, Oscar Laurent3, Giulio Borghini4, Sula Milani5, Cristina Guenter1 and Martin A Ziemann6, (1)University of Potsdam, Potsdam, Germany, (2)Helmholtz-Zentrum Potsdam GFZ, Potsdam, Germany, (3)ETH Zurich, Zurich, Switzerland, (4)Università degli Studi di Milano, Dipartimento di Scienze della Terra “Ardito Desio”, Milano, Italy, (5)Università degli Studi di Milano, Dipartimento di Scienze della Terra "Ardito Desio", Milano, Italy, (6)Universitaet Potsdam, Potsdam-Golm, Germany
Rb/Sr Geochemistry and Geochronology on Lawsonite from the Schiste Lustrés, France (517808)
Alexander Clark Ronan1, Michael Tappa1, Caitlin Brown1, Ethan Baxter1, Benjamin Lefeuvre2 and Philippe Agard2, (1)Boston College, Department of Earth and Environmental Sciences, Chestnut Hill, MA, United States, (2)Sorbonne Université, Institut des Sciences de la Terre de Paris, Paris, France
The Th/U cycle in serpentinites (Invited) (518353)
Emily H. G. Cooperdock, University of Southern California, Los Angeles, CA, United States and Andrew Smye, Pennsylvania State University, Department of Geosciences, University Park, PA, United States
Finding of overprinted granulites from the Da Nang-P Rao shear zone in the Truong Son Belt, central Vietnam (531893)
Nguyen Duc Nam, Department of Geoscience, National Taiwan University, Taipei, Taiwan, Ching-Hua Lo, National Taiwan University, Taipei, Taiwan and Tadashi Usuki, Institute of Earth Sciences Academia Sinica, Taipei, Taiwan
Epitactic mineral growth in fluid inclusions monitors redox equilibria in subducting ultramafic rocks (532889)
Nadia Malaspina1, Marcello Campione2, Mattia La Fortezza2, Matteo Alvaro3 and Marco Scambelluri4, (1)University of Milano-Bicocca, Earth and Environmental Sciences, Milano, Italy, (2)University of Milano-Bicocca, Milano, Italy, (3)University of Pavia, Department of Earth and Environmental Sciences, Pavia, Italy, (4)University of Genova, Italy, Genova, Italy
Late Permian cold subduction in the Yukon-Tanana Terrane, Yukon Territory, Canada: Progressive elcogitization in the lawsonite stability field recorded by lawsonite and garnet inclusions in garnet (541138)
Carly Faber, McGill University, Department of Earth and Planetary Sciences, Montreal, QC, Canada and Christie D Rowe, McGill University, Montreal, QC, Canada
Distinct P-T histories in a subduction mélange reveal underplating/mixing processes at the plate interface (North Motagua Mélange, Guatemala) (544072)
Guillaume Bonnet1, Kennet E Flores2, Celine Martin3 and George E Harlow3, (1)University of California Santa Barbara, Santa Barbara, United States, (2)Brooklyn College of the City University of New York, Department of Earth and Environmental Sciences,, Brooklyn, NY, United States, (3)American Museum of Natural History, Department of Earth and Planetary Sciences, New York, NY, United States
The metamorphic rock record of multiple veining, prograde dehydration and transient high pore fluid pressures along the subduction interface (545447)
Jesús Munoz, Institut de Physique du Globe de Paris, Tectonique et mécanique de la lithosphère, Paris, France, Samuel Angiboust, Institut de Physique du Globe de Paris, Paris, France, Aitor Cambeses, Institut für Geologie, Mineralogie and Geophysik Ruhr-Universität Bochum, Bochum, Germany and Antonio García-Casco, Department of Mineralogy and Petrology, Faculty of Sciences, University of Granada, Granada, Spain
The fate of subduction fluids above the subduction interface: implications for mantle wedge deformation processes (553043)
Samuel Angiboust, Institut de Physique du Globe de Paris, Paris, France, Johannes Glodny, GeoForschungsZentrum Potsdam, Potsdam, Germany, Aitor Cambeses, Institut für Geologie, Mineralogie and Geophysik Ruhr-Universität Bochum, Bochum, Germany, Tom Raimondo, University of South Australia, School of Natural and Built Environments, Adelaide, Australia, Patrick Monie, Géosciences Montpellier, Montpellier Cedex 05, France, Michael Popov, Ural State Mining University, Department of Petrography, Ekaterinburg, Russia and Michael G Bostock, University of British Columbia, Vancouver, BC, Canada
P-T Estimates in Metabasites from the Eastern Blue Ridge, North Carolina:Have these Retrogressed Eclogites Even Been Eclogites? (559362)
Matthew Goulding Guilin, University of North Carolina at Charlotte, Department of Geography and Earth Sciences, Charlotte, NC, United States and Celine Martin, American Museum of Natural History, Department of Earth and Planetary Sciences, New York, NY, United States;
Detecting the Pressure and Bulk Composition Effect on the Al-OH Absorption Band of White Micas: A Case Study in Northwest Turkey and Applications to the Guatemala Suture Zone (560844)
Taran William Bradley, South Dakota School of Mines and Technology, Rapid City, SD, United States, Gokce K Ustunisik, American Museum of Natural History, New York, NY, United States, Edward F Duke, Retired, Rapid City, SD, United States, Kennet E Flores, Brooklyn College of the City University of New York, Department of Earth and Environmental Sciences,, Brooklyn, NY, United States, Ali Tuğcan Ünlüer, Istanbul Technical University, Faculty of Mines, Maslak, Turkey and Demet Kiran Yildirim, Istanbul Technical University, Istanbul, Turkey
ORIGIN OF THE META-ULTRAMAFIC ROCKS FROM MASSACHUSETTS AND STATEN ISLAND, NEW YORK: A COMPLEX HISTORY (561082)
Celine Martin, American Museum of Natural History, Earth and Planetary Sciences, New York, NY, United States, Kennet E Flores, Brooklyn College of the City University of New York, Department of Earth and Environmental Sciences,, Brooklyn, NY, United States and George E Harlow, American Museum of Natural History, Department of Earth and Planetary Sciences, New York, NY, United States
