National Geophysical Data Center
MULTICHANNEL COMMON DEPTH POINT (CDP)
SEISMIC REFLECTION DATA
Additional Atlantic Survey Lines - TD 1 through 6
Data Announcement 81-MGG-13
Additional multichannel seismic reflection data collected as
part of a program by the U.S. Geological Survey (USGS) to survey
the geological framework of U.S. coastal areas are now available
Approximately 3,700 km of profiles were collected between
August 15 and October 30, 1977 by Teledyne Exploration Company
under USGS contract 14-08-000-1-16209. Teledyne used a four 540-
in(cubed) (8,850-cm(cubed)) air-gun array as a source and a 3,600
meter-long receiving streamer.
Teledyne processed lines TD-1, TD-3, TD-4, TD-5, and parts
of TD-2. The USGS processed parts of TD-2 and all of TD-6. Most
data were processed with 48-fold stacking. Details of the
processing are contained in the corresponding USGS Open File
Report 81-726 by Lewis E. Gilbert and William P. Dillon.
Lines: TD-1, TD-2, TD-3, TD-4, TD-5, and TD-6 are available on
plastic sepia, paper sepia, and blackline.
The following documentation is provided with each line:
- location maps (sepia or blackline)
- velocity proviles (microfilm)
- shot-point listings (microfilm)
- copy of supportive USGS Open File Report
The shot-point locations are also available on magnetic tape or
CD-ROM. Please contact NGDC for prices.