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doi:10.2204/iodp.sp.311.2005

Site Summaries (continued)

Site CAS-05B
Proposed site:
 		CAS-05B
Priority:
 		Alternate
Position:
 		48°44.161'N; 126°47.537'W
Water depth (m):
 		1360
Target drilling depth (mbsf):
 		350
Approved maximum penetration (mbsf):
 		350
Survey coverage:
  • MCS Line ODP-01
  • MCS line CAS-05a
  • Line 89-08
     Figure F12
    • Objective:
         		Objectives of this site include characterization of
  • pore water chemistry and gas chemistry (headspace and voids)
  • core physical properties
  • gas hydrate occurrence (distribution, concentration)
     An additional objective is to determine the nature of the BSR reflection and the thickness of the free gas zone (if any) underneath the BSR by wireline and LWD logging.
    • Drilling and Logging program
         		APC to refusal; XCB; PCS and HYACINTH (pending funding) pressure cores
    Logging program
         		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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