Borehole Seismic Data
IODP logging contractor: USIO/LDEO
Hole: U1359D
Expedition: 318
Location: Wilkes Land Margin (Antarctic Ocean)
Latitude: 64° 54.2596' S
Longitude: 143° 57.5624 ' E
Logging date: February 22-23, 2010
Sea floor depth (driller's): 3023 m DRF
Sea floor depth (logger's): 3019.5 m WRF
Total penetration: 3625.2 m DRF (602.2 m DSF)
Total core recovered: 450 m ( 59.9 % of cored section)
Oldest sediment recovered: Middle Miocene
Lithology: Diatomaceous silty claystones and finely-laminated claystones
TOOL USED: VSI (Versatile
Seismic Imager)
The logging data
was recorded by Schlumberger in LDF/DLIS format. All processing, including first
arrival picking and stacking, was performed by Schlumberger during
Expedition 318. The data was then
converted into SEGY format at USIO/LDEO, using tcode developed in house.
Stacks are
generally calculated with at least nine good traces.
All the data in
the SEGY files are sorted shot by shot (i.e. chronologically).
Additional
information about the drilling and logging operations can be found in the
Operations and Downhole Measurements sections of the expedition report,
Proceedings of the Integrated Drilling Program, Expedition 318.
For further questions about the logs, please contact:
Gilles Guerin
phone: 845-365-8671
fax: 845-365-3182
E-mail: guerin@ldeo.columbia.edu
Phone: 845-365-8343
Fax: 845-365-3182
E-mail: chris@ldeo.columbia.edu