IODP Expedition 301 Scientific Prospectus

doi:10.2204/iodp.sp.301.2004

Site Summaries (continued)

Site: SR-2

Priority:
Secondary (planned for subsequent return expedition)

Position:
47°45.662'N, 127°45.674'W;
approved for 500 m radius surrounding position

Water depth (m):
2600

Target drilling depth (mbsf):
475

Approved maximum penetration (mbsf):
475

Survey coverage:
GeoB 00-482: CDP 439
(track map–Fig. F4; seismic profile–Fig. F6)

Objective:

Characterize upper basaltic crust and hydrologic properties

Conduct cross-borehole hydrologic and geochemical experiments

Install long-term borehole observatory (pressure, geochemistry, microbiology)

Drilling and logging program:

Core into upper basement

Conduct wireline logging, vertical/offset seismic profile, and packer experiments

Install borehole observatory (Cork)

Nature of rock anticipated:
Turbidites (sand, silt, clay) and hemipelagic mud, overlying basalt

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