V029: Metasomatism: geochemistry, petrology, ore deposits, geophysics
From: Dan Harlov <dharlov@xxxxxxxxxxxxxx>
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Hi Folks,
Igor Villa ( igor.villa@xxxxxxxxxxxx )
and I cordially invite you to participate in a session devoted to the
rather broad topic of Metasomatism in both terrestrial and
extraterrestrial systems at the 2012 Fall AGU Meeting ( http://fallmeeting.agu.org/2012/ ).
V029: Metasomatism: geochemistry, petrology, ore deposits, geophysics
Metasomatism played a major role in the formation and evolution of continental and oceanic crust and the lithospheric mantle. Metasomatic processes include ore mineralization and mass transport in, and alteration of, subducted oceanic crust and overlying mantle wedge. Fluid-aided mass transfer and subsequent mineral re-equilibration are the two defining features of metasomatism and metamorphism. Fluid flow is coupled with HP rocks such as granulites and eclogites. Present day movement of fluids in mantle and deep-mid crust can be observed by geophysical data such as seismicity and electrical resistivity. Metasomatism has also played a role in the geochemical and geophysical evolution of extraterrestrial worlds such as volatile-rich asteroids and Mars.
This MSA sponsored session aims to bring together a diverse group of geologists and geophysicists specializing and experienced in all aspects of metasomatism.
These can include metamorphic and
igneous petrologists, ore geologists, geophysicists, cosmochemists,
experimental petrologists, oceanographers, researchers in subduction
zone processes, and modelers of crustal, mantle, and subduction
fluid-related processes.
Invited speakers and the general subjects on which their talks will specifically focus include:
Jay Ague, Yale University - the role of fluids during metamorphism
Bob Bodnar, Virginia Tech - fluids and ore deposition
Adrian Brearley, University of New Mexico - metasomatic processes during the early history of asteroids
Martyn
Unsworth, University of Alberta - observation of fluid movement in the
crust and upper mantle in real time using geophysics
Please
encourage your students, postdocs, etc. to contribute to the session.
It is designed to cover the broad areas of geology in which
metasomatism plays a role in the chemical and physical transformation of
rocks from the nano-scale up to the kilometer scale.
Information on the session can be found on the following web site:
The on-line abstract submission deadline is August 8, 2012.
Information on the abstract submission process is available at:
Should any questions arise as to the suitability of the topic for
an abstract to the session, please feel free to contact us.
Best regards,
Igor Villa and Daniel Harlov
Daniel Harlov
Section 3.3 Chemistry and Physics of Earth Materials
Helmholtz-Zentrum Potsdam
Deutsches GeoForschungsZentrum - GFZ
Stiftung des öff. Rechts Land Brandenburg
Telegrafenberg
D-14473 Potsdam
FR Germany
international tel +49 (331) 288-1456
international fax +49 (331) 288-1402
email: dharlov@xxxxxxxxxxxxxx
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