IODP

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doi:10.2204/iodp.sp.303306.2004

SITE SUMMARIES (CONTINUED)

Site: IRD4A
Proposed site:
IRD4A
Priority:
Secondary
Position:
42°50.205'N, 23°5.252'W
Water depth (m):
3542
Target drilling depth (mbsf):
300
Approved maximum penetration (mbsf):
400
Survey coverage:
  • Redrill DSDP Site 608
  • CH-94 (12 July 1983)
  • Discovery 33 and 54
  • Objective:
    Establish late Neogene–Quaternary intercalibration of geomagnetic paleointensity, isotope stratigraphies, and regional environmental stratigraphies, and in so doing develop a millennial-scale stratigraphic template.
    such a template is required for understanding the relative phasing of atmospheric, cryospheric, and oceanic changes that are central to our understanding of the mechanisms of global climate change on orbital to millennial timescales.
    Drilling program:
    3X APC to refusal with drillover
    Logging program:
    To be determined
    Nature of rock anticipated:
    Foraminifer-nannofossil ooze

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