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From: Lisa Morgan <lmorgan@xxxxxxxx>
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Dear colleagues,
We would like to remind you of the following session to be held at the GSA
Annual Meeting in Denver, Colorado, October 28-31, and encourage you to
consider submitting an abstract (deadline July 10). Lisa Morgan, Henrietta
Cathey, and Ken Pierce are convening the session.
T117. The Track of the Yellowstone Hot Spot: What do Neotectonics, Climate
Indicators, Volcanism, and Petrogenesis Reveal about Subsurface Processes?
This session focuses on the track of the Yellowstone hotspot and its
proposed mantle plume origin through the integration of neotectonics,
structural evolution, climate indicators, volcanology, petrogenesis, and
geophysics. Research from field, laboratory, geochemical, geophysical,
conceptual, and computer modeling studies are welcome. This session seeks
to highlight recent advances that test the plume hypothesis, and
multidisciplinary contributions focused on coupled processes are welcome.
Thematic questions include: (1) What is the predicted response of the
lithosphere to passage of the North American plate over an inferred plume
head that evolves into a plume tail, and are there unique indicators
associated with such a process? (2) How can the effects on regional and
global climate of hotspot propagation be quantified? (3) Both active
faulting and uplift are associated with the track of the hotspot, but what
specific mechanisms connect faulting and uplift to the hotspot, and what is
the role of preexisting structures on the location and type of volcanism
and faulting? (4) How do inferred individual magmatic systems and eruptive
centers evolve in space and time – what is the nature of their interaction
with preceding and succeeding systems, and what physical and chemical
conditions are associated with generation and emplacement of magmas? (5)
How has the style of volcanic supereruptions changed over the history of
the hotspot and how does Yellowstone hotspot volcanism inform our
understanding of other large silicic magmatic provinces, including the
hazards they present?
Hope to see you at the GSA session T117.
Additional meeting information is available at:
http://www.geosociety.org/meetings/2007/
The abstract deadline is July 10th. Any questions about this session
should be sent to Lisa Morgan (lmorgan@xxxxxxxx), Henny Cathey
(cathey@xxxxxxxxxxxxxx) or Ken Pierce (kpierce@xxxxxxxx).
thanks,
Lisa, Henny, and Ken
Lisa A. Morgan U.S. Geological Survey
Research Geologist Denver Federal Center,
Box 25046, MS 966
lmorgan@xxxxxxxx Denver, CO 80225-004
phone: 303-273-8646
fax: 303-273-8600
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