Borehole Seismic Data Processing
IODP operator and logging contractor: LDEO-BRG
Location: Ursa Basin (Gulf of Mexico)
Latitude: 28° 4.786'N
Longitude: 89° 8.357'W
Logging date: June 19-20, 2005
Sea floor depth (driller's): 1065.5 mbrf
Sea floor depth (logger's): 1066.5 mbrf
Total penetration: 612.5 mbsf
Total core recovered: 0 m (LWD only)
Oldest sediment cored: LWD performed first, no coring. In U1324B: Quaternary
Lithologies: LWD performed first, no coring. In U1324B: clay, mud, silt, and sand.
TOOL USED: WST (Well Seismic Tool)
The logging data was recorded by Schlumberger in DLIS format. All processing, including first arrival picking and stacking, was performed by Schlumberger during Expedition 308. The data was then converted into SEGY format at the Borehole Research Group of the Lamont-Doherty Earth Observatory, using the SEGY Save module in GeoFrame.
Stacks are generally calculated with at least seven good traces
All the data in the SEGY files are sorted shot by shot (i.e. chronologically).
E-mail: Gilles Guerin
E-mail: Cristina Broglia