Borehole Seismic Data Processing (Phase 2)
IODP -USIO logging contractor: LDEO-BRG
Hole: U1309D (Phase 2)
Expedition: 305
Location: Atlantis Massif - Mid Atlantic Ridge (central N Atlantic)
Latitude: 30° 10.120' N
Longitude: 42° 7.113' W
Logging date: January 31 - February 2, 2005
Sea floor depth (driller's): 1656 mbrf
Total penetration: 838 mbsf
Total core recovered: 631.5 m (75.36 % of cored section)
Oldest sediment cored: none
Lithologies: diabase, gabbro, oxide gabbro, troctolite
TOOL USED: WST3 (3-Component 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 305 (Phase2). 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).