Site Summaries (continued)
Water depth (m):
Target drilling depth (mbsf):
Approved maximum penetration (mbsf):
Regional site survey lines
Site CAS-04B is the reference site for the transect. It is located in the Cascadia abyssal plain, ~3 km west of the deformation front. It is similar to Site 888 of ODP Leg 146.
Primary targets are determining the pore water chemistry profile and sediment physical properties from core and logging data.
Drilling and Logging program
APC to refusal; XCB; PCS and HYACINTH (pending funding) pressure cores
LWD, triple combo, FMS-sonic, multiple use of APCT, DVTPP
Nature of rock anticipated:
Interlayered silts and clays, some authigenic carbonates possible
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