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CHIKYU MAIL NEWS Vol. 99, April 11th 2008

This mail news service provides you with information
about the Deep Sea Drilling Vessel "Chikyu" and
science and technology for the IODP Earth exploration.

CHIKYU HAKKEN WEB SITE
http://www.jamstec.go.jp/chikyu/
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[Update]
IODP Exp. 316 NanTroSEIZE Stage 1A
Preliminary Report Available Online
http://dx.doi.org/10.2204/iodp.pr.316.2008
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The preliminary report of the 3rd expedition of NanTroSEIZE
is published and available online at following address;
http://dx.doi.org/10.2204/iodp.pr.316.2008

Expedition 316 was designed to evaluate the deformation, inferred
depth of detachment, structural partitioning, fault zone physical
characteristics, and fluid flow at the frontal thrust and at the
shallow portion of the megasplay system. During the expedition,
the accretionary prism was sampled and the megasplay fault zone
was successfully drilled. Structural observations of core material
from the fault zone and two age reversals suggested by nannofossils
indicate a complex history of deformation. Also the plate boundary
frontal thrust was successfully drilled and thrust fault material
ranging from breccia to fault gouge was successfully recovered.
Dr. Gaku Kimura (Professor, Department of Earth and Planetary
Science, University of Tokyo, Japan) and Dr. Elizabeth J. Screaton
(Associate Professor, Department of Geological Sciences, University
of Florida, USA) are the Co-Chief Scientists, while the science
party comprises 26 onboard scientists from 10 countries.

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doi:10.2204/iodp.pr.316.2008
Integrated Ocean Drilling Program
Expedition 316 Preliminary Report
NanTroSEIZE Stage 1A:
NanTroSEIZE Shallow Megasplay and Frontal Thrusts
19 December 2007 - 5 February 2008
Gaku Kimura, Elizabeth J. Screaton, Daniel Curewitz,
and the Expedition 316 Scientists
Published by Integrated Ocean Drilling Program
Management International, Inc., for
the Integrated Ocean Drilling Program
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*Other Expedition reports are available from IODP web portal,
http://www.iodp.org/scientific-publications/

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CHIKYU HAKKEN web site introduces you to every
aspect of the Deep Sea Drilling Vessel "Chikyu" and
science and technology for the IODP Earth exploration.
http://www.jamstec.go.jp/chikyu/

The Integrated Ocean Drilling Program (IODP) is an
international marine research drilling program dedicated
to advancing scientific understanding of the Earth by
monitoring and sampling sub seafloor environments.
IODP drilling operations aboard the Chikyu are managed by
JAMSTEC through CDEX, Japan Implementing Organization.
http://www.iodp.org

"CHIKYU HAKKEN" means Discover the Earth in Japanese.
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