Site Summaries: Site MAF-4B | Table of Contents


Track Line
Seismic Line EW9509-1
Seismic Line QCS524-30

Site: KS-1

Priority: 2
Position: 24°48.24'N, 122°30.00'E
Water Depth: 1270 meters below sea level (mbsl)
Sediment Thickness: >410 m
Target Drilling Depth: 410 mbsf
Approved Maximum Penetration: Pending PPSP approval
Seismic Coverage: Intersection of EW9509-1 and QCS524-30

Objectives: The objectives of Site KS-1 are to sample Pleistocene high-resolution sedimentary records to obtain information about the circulation history of the Kuroshio Current by

  1. Identifying patterns of long-term climate change associated with the western Pacific boundary current during the past 2.0 m.y.

  2. Examining the western Pacific component of long-term changes due to orbital forcing in the mid-Pleistocene (~0.7 Ma) when Earth's climate system switched from a regime of dominant 41-k.y. cycles to 100-k.y. cycles

  3. Exploring any long-term El Niño/La Niña type of climate oscillation in the low-latitude Pacific over the late Pleistocene glacial-interglacial cycles by comparing the Kuroshio record to other Pacific ODP records

  4. Documenting the temporal and spatial variability of millennial climate changes in the Kuroshio Current

Drilling Program: Triple APC/XCB to 410 mbsf

Logging and Downhole Operations: Triple combo, FMS/sonic, GHMT

Nature of Rock Anticipated: Hemipelagic mud and silt

Site Summaries: Site MAF-4B | Table of Contents