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CHIKYU MAIL NEWS Vol. 64, October 9th 2007

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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IODP NanTroSEIZE Stage 1:
Expedition 314: NanTroSEIZE LWD Transect
Weekly Report #2
Date 05/Oct/2007
http://www.jamstec.go.jp/chikyu/eng/Expedition/NantroSEIZE/exp314_wr2.html

Preparation for geotechnical coring began on 29 September
at Hole C0001B and 30m cores were taken from the seafloor
at 2189m water depth on 30 September.
Running into the hole with LWD assembly commenced on
October 1st. Hole C0001C was spudded in at 19:15. The hole
inclination was found to be 6 degrees caused by strong Kuroshio
current. Hence the string was pulled out of the hole and moved
to new site nearby. Hole C0001D was spudded on 2nd October.
To prevent a hole deviation, the drill pipe and bit were
jetted 70 meter in and rotary drilling began at 30 m/hr rate of
penetration. Progress was slowed by tight hole and high torque
conditions. Utilized the drilling data of Pilot Hole A, drilling
conditions improved and reached 627 meter below seafloor
on 4th October.

Final confirmation and practice for the LWD data processing was
carried out among four scientists sub-groups with support from
the Core-Log-Seismic-Integration staff. The whole science party
finished Safety Management System (SMS) lectures, and
participated in biweekly Safety Management Meeting.
On Hole C0001B pilot cores, X-ray CT, MSCL-W, and Moisture
and Density measurements were conducted. Science seminars
were held continuously, covering 20 topics. LWD real-time data
was monitored while the data processing specialist was working
and log data quick check, data distribution and processing procedure
were confirmed by scientist's working groups.
In Lab area, continued the preparation for the coming coring
expeditions, maintenance, instrument setup and rearrangements.
Measurements of geo-technical cores were conducted in support
of wellsite geologist.
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Go to NanTroSEIZE Special Site:
http://www.jamstec.go.jp/chikyu/eng/CHIKYU/status.html

Go to Expedition 314 Photo Gallery:
http://www.jamstec.go.jp/chikyu/eng/Expedition/NantroSEIZE/exp314_pg.html

Go to NanTroSEIZE science plan:
http://www.jamstec.go.jp/chikyu/eng/Expedition/NantroSEIZE/index.html

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CHIKYU MAIL NEWS
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http://www.jamstec.go.jp/chikyu/eng/mailnews/

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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