Hi All
here's a notice on a forthcoming fieldtrip at this years GSA in Salt Lake
City:
Anatomy of Reservoir-Scale Normal Faults in Central Utah: Stratigraphic
Controls and Implications for Fault Zone Evolution and Fluid Flow.
Led by Peter Vrolijk, Rod Myers, Mike Sweet, Zoe Shipton and Jim Evans
cosponsored by GSA Structural Geology & Tectonics Division
This 2-day (2 night) post-conference field trip will run 19th - 21nd
October 2005, after the annual GSA meeting in Salt Lake City, Utah.
We will examine the way that faults nucleate and grow through complex, 3-D
stratigraphic sequences and more homogeneous sequences in Jurassic
deposits, central Utah. Along-fault and cross-fault fluid flow will be
considered in this context. This trip is intended to attract structural
geologists, stratigraphers, and hydrogeologists interested in
interdisciplinary research.
The Little Grand Wash fault cuts Jurassic fine-grained clastic sequences,
and has large veins, travertine deposits, and active CO2-charged
springs. Abundant evidence for past and recent fluid and gas flow in the
fault zone demonstrates how faults may allow vertical fluid flow, and is an
important geologic example of a leaking CO2-charged system with
implications for proposed CO2 geologic sequestration projects.
Recent studies of the Big Hole fault and the Chimney Rock array, developed
in Jurassic Navajo Sandstone in the northern San Rafael swell constrain
models of fault growth, and provide rich insight into the impact faults may
have on fluid flow in the subsurface. The field trip will examine key
localities of these areas to examine the evidence for fault growth, and
will demonstrate how internal fault structure impacts the bulk permeability
of the rocks.
If you are interested in participating, visit the GSA 2005 Conference website,
http://www.geosociety.org/meetings/2005/ft-post.htm
Thanks
Zoe
************************************
Dr Zoe Shipton
Division of Earth Sciences
Centre for Geosciences
University of Glasgow
Gregory Building, Lilybank Gardens
Glasgow G12 8QQ, Scotland, UK
+44 (0)141 330 2783
http://www.earthsci.gla.ac.uk
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