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Table 1 Location of the dredge sites of cruise KH-98-1, R/V Hakuho-maru
Cruise
KH-98-1 (R/V Hakuho-maru )
Site
D1
D2
Water depth (m)
6,265
5,979
On bottom
Depth (m)
5,843
4,880
Latitude
12°13.07¢N
12°15.83¢N
Longitude
144°06.38¢N
144°05.19¢E
Fig. 1 Location map showing dredge sites KH-98-1D1 and KH-98-1D2. ( a ) Bathymetry of the
southern Mariana Trough and satellite altimetry map of the Philippine Sea (Data from Smith
and Sandwell 1997 ). Tectonic features are based on Fryer ( 1996 ) and Martinez et al. ( 2000 ).
( b ) Bathymetry of the inner wall of the southern Mariana Trench. Also shown are the location of
previous survey sites, D27 (Bloomer and Hawkins 1983 ), and Shinkai 6500 dives #158 and #159
(Fryer 1993 ), and #973 (Michibayashi et al. 2009 )
 
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