SITE SUMMARY GAB-09A

Site: GAB-09A
(GAB-09A seismic)
(GAB-09A track line)

Priority: 1
Position: 3317.3793S, 12828.8748E
Water Depth: 200 m
Sediment Thickness: ‰2480 m
Approved Maximum Penetration: 600 m
Seismic Coverage: Intersection at SPs 1202 and 5574.5 on AGSO Line 169/05

Objectives: The objectives of GAB-09A are to

  1. Collect detailed, high-resolution profiles through a late Neogene succession deposited within a high-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 a shelf edge setting, as a component of the shelf-to-basin paleoceanographic transect.
  3. Evaluate the diagenetic history of calcitic sediments deposited within a high-energy environment below storm wave base, for comparison with the lower energy environments at Sites GAB-07A and GAB-08A.

Drilling Program: Triple APC, XCB

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

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

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