ALTERNATE SITES

Site: PBS-5A


To PBS-5A Line AGSO 186-1800 NS
To PBS-5A Line BMR 33-5P2

Priority: 2 (alternate to PBS-2A should Prydz Bay be inaccessible)
Position: 66°47.808´S, 063°15.597´E
Water Depth: 315 m
Sediment Thickness: ~1 km
Target Drilling Depth: ~50 mbsf
Approved Maximum Penetration: 50 mbsf
Seismic Coverage: AGSO 186/1800 SP 883, BMR 33-5P2 SP 11760


Objectives: Alternate to PBS-2A if Prydz Bay is inaccessible. Gravity cores containing Paleogene marine fossils indicate that a shallow hole at PBS-5A may recover mid-Eocene sediments.


Drilling Program: RCB to TD


Logging Program: None


Nature of Rock Anticipated: Diamict at surface, then siltstone, sandstone, and mudstone



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