Wireline Standard Data Processing

ODP logging contractor: LDEO-BRG

Well name: 707C

Leg: 115

Location: Mascarene Plateau (tropical SW Indian)

Latitude: 7° 32.72' S

Longitude: 59° 1.01' E

Logging date: June, 1987

Bottom felt: 1551.9 mbrf (used for depth shift to sea floor)

Total penetration: 443.2 mbsf

Total core recovered: 91.7 m (35.3 %)

Logging Runs

Logging string 1: DIT/BHC/GR

No information could be found in the shipboard logging report about the wireline heave compensator.

Bottom-hole Assembly

The interval processed was recorded entirely open-hole.

Processing

Depth shift: No differential depth shift was required as only one run was recorded. The original logs have been depth shifted to the sea floor (- 1551.9 m).

Acoustic data processing: The borehole compensated sonic (BHC) data were of good quality and did not need any processing. The delay time has been converted into compressional velocity.

Quality Control

Null value=-999.25. This value may replace invalid log values or results.

During the processing, quality control of the data is mainly performed by cross-correlation of all logging data. The data collected at Hole 707C are of very  good quality.

Hole diameter was recorded by the 3-arm mechanical caliper device (MCD)).

Additional information about the logs can be found in the "Explanatory Notes" and Site Chapter, ODP IR volume 115.

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