SITE SUMMARY GAB-08A

Site: GAB-08A
(GAB-08A seismic)
(GAB-08A track line)

Priority: 2
Position: 3319.5628S, 12828.8788E
Water Depth: 332 m
Sediment Thickness: ‰2880 m
Approved Maximum Penetration: 650 m
Seismic Coverage: Intersection at SPs 879 and 8253.5 on AGSO Line 169/05

Objectives: The objectives of GAB-08A are to

  1. Collect a detailed, high-resolution profile through a late Neogene succession deposited within a moderate-energy, cool-water carbonate environment to determine the response of such a depositional system to Plio-Pleistocene sea-level fluctuations.
  2. Obtain a high-resolution record of late Neogene paleoceanographic variation within an upper slope setting, as a component of the shelf-to-basin paleoceanographic transect.
  3. Evaluate the diagenetic history of calcitic sediments deposited within a moderate-energy environment below storm wavebase, for comparison with the higher energy environment at Site GAB-09A.

Drilling Program: Triple APC, XCB

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

Nature of Rock Anticipated: Wackestone; foram-nanno ooze and chalk; minor grainstone

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