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Izu-Bonin-Marianas IODP expedition opportunities
From: Cathy Busby <cathy@xxxxxxxxxxxx>
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Dear Colleagues
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Izu-Bonin-Marianas IODP expedition opportunities
From: Cathy Busby <cathy@xxxxxxxxxxxx>
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Dear Colleagues
I am emailing you as co-chief scientist of one of the three Izu-Bonin-Marianas IODP legs scheduled for 2014.
These
expeditions should be of great interest to convergent
margin/volcanology types who don't normally apply to sail on an IODP
expedition.
THE APPLICATION DEADLINE IS MAY 1,
and you can hedge your bets by applying to two or three of the cruises.
The application is easy - just a two-page participation plan, your cv
and a couple of simple forms.
The EU is paying
for several berths on each cruise, and there haven't been as many
Europeans as circum-Pacific scientists on the proposals, so I want to
make sure Europeans know about this opportunity. I also understand that
there will be berths for Brazilian, Chinese and Korean scientists, in
addition to berths for Japanese and New Zealand/Australian scientists.
Please contact us (emails below) if you are interested in knowing more.
Leg 350 - IBM Rear Arc Expedition (March – May 2014): This expedition aims to
understand crustal genesis and mantle evolution of the IBM rear arc system by
examining sediments and crust in the Philippine Sea. The primary objective is to
obtain a temporal history of across-arc variation in magma composition during five
main intervals of arc evolution. Co-chief scientists: Yoshihiko Tamura, JAMSTEC;
tamuray@xxxxxxxxxxxxx, Cathy Busby, University of California, Santa Barbara;
Leg 351 - IBM Arc Origins Expedition (May – July 2014):This expedition will
examine the inception and evolution of the IBM arc by obtaining a sedimentary and
crustal record from the Amami Sankaku Basin. The primary objectives are (1) to
examine the petrology and age of the crust to infer the geochemistry of the mantle
prior to IBM arc inception and determine the mantle source of the arc foundation; (2)
to obtain records of IBM arc inception and growth, late Mesozoic-early Paleogene
eastern Tethys paleoceanography, and East Asian monsoon conditions during the
Neogene; and (3) to determine if early uplift or subsidence was associated with
subduction initiation. Co-chief scientists: Richard Arculus, Australian National
University, Richard.Arculus@xxxxxxxxxx, Osamu Ishizuka GSJ/AIST;
Leg 352 - IBM Forearc Expedition (July – September 2014): This expedition will
explore early processes in magmatic evolution, chemostratigraphy and arc crustal
accretion that are associated with subduction initiation at intra-oceanic convergence
plate margins. Scientific objectives are to (1) obtain a high-fidelity record of magmatic
evolution during subduction initiation by coring volcanic rocks down to underlying
intrusive rocks, including obtaining radiometric and biostratigraphic ages; (2)
understand the chemical gradients within the rock units and across their transitions,
as well as their tectonic significance; and (3) provide empirical constraints for
subduction initiation geodynamic models by examining how mantle melting
processes evolve from early decompression melting of fertile asthenosphere to late
flux melting of depleted mantle. Co-chief scientists: Julian A. Pearce, University of
Cardiff; PearceJA@xxxxxxxxxxxxx, Mark K. Reagan, University of Iowa;
Cathy Busby
Professor
Department of Earth Science
University of California
Santa Barbara CA 93106 USA
cathy@xxxxxxxxxxxx
http://www.geol.ucsb.edu/faculty/busby
Professor
Department of Earth Science
University of California
Santa Barbara CA 93106 USA
cathy@xxxxxxxxxxxx
http://www.geol.ucsb.edu/faculty/busby
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