Site: ACE-9a (see map)

Priority: 1
Position: 9°30.387'S, 151°34.393'E
Water Depth: 2211 m
Sediment Thickness: 1000 m
Approved Maximum Penetration: 1000 mbsf
Seismic Coverage: EW9510-1366 (WW01 CMP 3850) and 1379 (WW11 CMP 1624)
Seismic line 1
Seismic line 11

Objectives: The objectives of Site ACE-9a are to determine:

1.sedimentology, biostratigraphy, and vertical motion history of the northern margin, and

2.nature of the forearc basin sequence and the pre-rift history.

Drilling Program

Logging and Downhole Operations: Triple-combo Geophysics, FMS-sonic, GHMT (if on board), temperature (Adara, DVTP/WSTP).

Nature of Rock Anticipated: 780 m Pliocene-Quaternary hemipelagic sediments above 220 m Miocene forearc basin sediments (sandstone, siltstone, and mudstone).

To Scientific Participants

To 180 Table of Contents

ODP Publications

ODP Home