Borehole Seismic Data Processing
IODP-USIO logging contractor: LDEO-BRG
Hole: U1317D
Expedition: 307
Location: Porcupine Basin, Challenger Mound (eastern N Atlantic)
Latitude: 51° 22.832' N
Longitude: 11° 43.092' W
Logging date: May 6-7, 2005
Sea floor depth (drillers'): 805 mbrf
Sea floor depth (step in GR log): 816 mbrf
Total penetration: 270 mbsf
Total core recovered: 101.62 m (63.5 % of cored section)
Oldest sediment cored: siltstone (Miocene)
Lithologies: Coral floatstone, rudstone, wackestone, packstone, and siltstone
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).