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TOPICAL SESSION ANNOUNCEMENT, BOSTON GSA MEETING, NOVEMBER 5-8, 2001
Topical session T59: "RHEOLOGICAL EFFECTS OF FLUID-ROCK INTERACTIONS AT
DEPTH: FROM EXPERIMENTAL CONSTRAINTS TO INTERPRETATIONS OF FIELD
OBSERVATIONS"
CONVENORS:
Tim Wawrzyniec
Bureau of Economic Geology, University of Texas
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Jane Selverstone
University of New Mexico
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SPONSORS: GSA Structural Geology and Tectonics Division, GSA Geophysics
Division.
The INVITED SPEAKERS for this session will be:
Jan Tullis - Brown University
Bruce Watson - Rennselaer Polytechnic Institute
Chris Spiers - University of Utrecht
Gary Axen - UCLA
RATIONALE: Recent advances in experimentation and field-based analyses
indicate that a minor change in fluid chemistry may result in rapid
permanent or transient shifts between ductile and brittle deformation
mechanisms. The purpose of this session is to bring together a series of
talks from the fields of experimental petrology and microstructural
analysis, structural geology, applied fluid inclusion analysis, and
economic geology to explore the relatively unrecognized but significant
role of fluid composition in controlling transitions between brittle and
ductile behavior. This exploration in turn may provide insight into
seismogenic processes and shear zone initiation.
We encourage contributions from experimental and applied petrology,
microstructural studies, field-based kinematic studies, fluid-inclusion
studies of shear-zone rocks, and studies of rheologic changes associated
with boiling fluids.
SCIENTIFIC CATEGORIES: Structural Geology;
Geophysics/Tectonophysics/Seismology; Petrology, Experimental
We hope to have both an ORAL session and a POSTER session on this topic.
THE DEADLINE FOR ELECTRONIC SUBMISSION OF ABSTRACTS IS JULY 24.
Information on the meeting and on abstract submission is available at:
http://www.geosociety.org/meetings/2001/index.htm
____________________________________________________
Jane Selverstone, Professor
Dept. of Earth & Planetary Sciences
Northrop Hall, 200 Yale Blvd. NE
University of New Mexico
Albuquerque, NM 87131-1116
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505-277-6528 or -4204; 505-277-8843 fax
http://epswww.unm.edu/facstaff/selver/home.htm
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