SITE SUMMARY GAB-01C

Site: GAB-01C
(GAB-01C seismic)
(GAB-01C track line)

Priority: 1
Position: 34°23.4672´S, 127°35.4393´E
Water Depth: 3884 m
Sediment Thickness: ‰5950 m
Approved Maximum Penetration: 700 m
Seismic Coverage: Intersection of AGSO Lines 169/08 (SP 729.5) and 169/11 (SP 1962.5)

Objectives: The objectives of GAB-01C are to

1. Recover pelagic ooze from the upper continental rise to construct a Cenozoic and Late Cretaceous paleoceanographic record of the opening of the Southern Ocean and the development of the Circum-Antarctic Current.
2. Determine the history of Cenozoic and Late Cretaceous carbonate compensation depth (CCD) fluctuations and deep-water mass variations during the evolution of the Southern Ocean (in conjunction with Sites GAB-02B and GAB-13B).
3. Determine depositional and diagenetic facies on the upper continental rise.

Drilling Program: Triple APC, XCB, RCB

Logging and Downhole Operations: Triple combo, FMS/Sonic, GHMT, WST

Nature of Rock Anticipated: Nanno-foram ooze and chalk (590 m), sandstone (24 m); and volcanics (1 m)

To 182 Site Summary GAB-02B

To 182 Table of Contents