Borehole Seismic Data



ODP logging contractor: LDEO-BRG

Hole: 889B

Leg: 146

Location: Cascadia Margin (NE Pacific)

Latitude: 48° 41.85' N

Longitude: 126° 52.392' W

Logging date: October, 1992

Water depth: 1327 mbrf

Total penetration: 386.5 mbsf

Total core recovered: 48.1m (25 %)


TOOL USED: WST (Well Seismic Tool)


The logging data was recorded by Schlumberger in LIS format. All processing, including first arrival picking and stacking, was performed by Schlumberger during Leg 146. The data was then converted into SEGY format at the Schlumberger processing center.


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).



For any question about the data or about the LogDB database, please contact LogDB support: logdb@ldeo.columbia.edu.