Borehole Seismic Data
IODP logging
contractor: USIO/LDEO
Hole: U1399C
Expedition:
Location: Lesser Antilles, off Martinique (Caribbean Sea)
Latitude: 14° 23.2593' N
Longitude: 61° 42.6665' W
Logging date:
Sea floor
depth (driller's):
2912.4 m DRF
Sea floor depth (logger's): 2910 m WRF (HRLA/HLDS/MSS/EDTC-B main)
Total
penetration: 240 m DsF (3160 m DRF)
Total core recovered: 0 m (logging-dedicated hole)
Oldest
sediment recovered:
Lithologies: Alternating layers of hemipelagic mud, volcaniclastic fine sand and tephra
TOOL USED: VSI (Versatile
Seismic Imager)
The logging data
was recorded by Schlumberger in LDF format. All processing, including first
arrival picking and stacking, was performed by Schlumberger during
Expedition 340T. The data was then
converted into SEGY format at USIO/LDEO, using code 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 340.
For further questions about the logs, please contact:
Gilles Guerin
Phone: 845-365-8671
Fax: 845-365-3182
E-mail: Gilles Guerin
Cristina Broglia
Phone: 845-365-8343
Fax: 845-365-3182
E-mail: Cristina Broglia