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Andy Kingdon writes ...

Dear Colleagues,

There are currently no UK applicants for this leg between 5 Mar (Guam)
- 11 April 2001(Kaohsiung, Japan); formal staffing will begin in late
summer.  Preliminary details available at
http://www-odp.tamu.edu/publications/tnotes/fy0102/195ab.html.
(partially reprinted below). Fuller details will be placed here
shortly.

There are currently few geophysicists / seismologists involved in ODP
in the UK, so please pass these details onto any geophysicists
etc. who may be interested in your departments

best regards, 
ANDY KINGDON 

********************************************

Plate consuming boundaries are concentrated in the Western Pacific
area. It is most suitable region to study the dynamics of plates
undergoing subduction, formation and evolution of island arcs and
marginal seas, and the relation of these processes to mantle
convection. Over the past years a dense regional geophysical network
has been established on land. The network in Japan is one of the
densest arrays of seismic stations in the world, and good coverage
extends throughout eastern Asia. However, the land network must be
supplemented by stations to provide data from the mid-ocean floor and
from the plate subduction boundary. Development of the ocean seismic
network is proceeding using ODP boreholes that are outfitted as
long-term geophysical observatories. They provide unique seismic data
hitherto unavailable. These data help quantify the dynamics of
subducting plates from their entry into the mantle to their
destruction in the deep mantle.

The proposal for the Western Pacific Geophysical Network called for
two sites which were endorsed by the International Ocean Network
(ION). The long-term ocean seismic observatory network was included as
an initiative in the ODP Long Range Plan (LRP) as a contribution to
the Global Seismic Network. The GSN has been successful is resolving
the earth's interior from land and island based seismic installations,
but still lacks coverage in large areas of the oceans. Two Western
Pacific sites are designed to aid study of earthquake dynamics, the
dynamics of the subducting plates, the formation of island arcs, and
the relation of these processes to mantle convection. The first of the
sites is scheduled for drilling during FY 00 and the second is
scheduled here for drilling in 2001. Long-term seismic observatories
will be installed at both sites. Both observatories will be connected
to nearby telecommunications cables, in future

********************************************
Andrew Kingdon
UK ODP Programme Manager
British Geological Survey
Keyworth, Nottingham,
NG12 5GG, UK
Phone:  +44 (0)115 936 3415
Fax:      +44 (0)115 936 3549
Email:   [log in to unmask]
http://www.bgs.ac.uk/odp
http://www.british-geological-survey.co.uk



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