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doi:10.2204/iodp.sp.307.2005

SITE SUMMARIES (continued)

Site: PORC-03A
Priority:
 		Primary
Position:
 		51°22.848'N, 11°43.108'W
Water depth (m):
 		815
Target drilling depth (mbsf):
 		220
Approved maximum penetration (mbsf):
 		220
Survey coverage:
  • P980521 (SP 1850) (Fig. F12)
  • P000658 (SP 0750) (Figs. F13, F17, F18)
  • P000617 (SP 1520)
  • P980525 (SP 0360)
  • P010516 (SP 0172) (Fig. F5)
  • Track map (Fig. F9)
  • Porcupine-Belgica 1998, 2000, and 2001 high-resolution seismic grid
  • TTR7-AT-ORAT8 3.5 kHz and side-scan sonar
  • TOBI 30 kHz mosaic side-scan sonar (Figs. F15, F16)
  • Polarstern ANT-XVII/4 swath bathymetry (Fig. F15)
  • ROV-Videotransect (Fig. F16)
  • Core MD01-2451G (September 2001)
    • Objectives:
         		Carbonate mound sitting on a gently inclined flank overlying an erosional surface. This site may provide insight into deeper biosphere, the mound formation, and microbial mediated early diagenetic cementation.
    Drilling program:
         		Triple-APC or XCB to refusal
    Logging program:
         		Triple combo, FMS-sonic, zero-offset VSP (pending approval)
    Nature of rock anticipated:
         		Carbonate mud mound, lithified micritic carbonate with skeletal grains up to 5 cm diameter forming a typical floatstone and wacke- to packstone fabric

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