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Coastal and Marine Geology Program || Woods Hole Field Center

U. S. Geological Survey, Open-File Report 01-123
Version 1.0

Deep-Towed Chirp Profiles of the Blake Ridge Collapse Structure Collected on USGS Cruises 92023 and 95023 Aboard the R/V Cape Hatteras in 1992 and 1995

By Jeffrey W. Nealon, William P. Dillon, William W. Danforth, and Thomas F. O'Brien

U.S. Geological Survey, Woods Hole, MA, 02543

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This CD-ROM contains data collected over an area offshore of South Carolina on the crest of the Blake Ridge in water depths of about 2600 meters. Eight deep-towed, subbottom profile ("chirp") lines were collected across a depression in the sea bottom known as the Blake Ridge collapse structure.

This CD-ROM is available for purchase from USGS Information Services. See Ordering U.S. Geological Survey Products, call toll-free (from the U.S.) 1-888-ASK-USGS, or e-mail


1. Introduction:

Brief description of the study.

2. Cruise Reports:

Information on the equipment, data and personnel.

3. Trackline Map:

Map with links to profile images and data files

4. Data Files:

Access to the data directories

5. References:

Selected References

6. Metadata:

FGDC-metadata files

7. Help page:

Details regarding the formatting and use of this CD-ROM.

Although all the data released on this CD-ROM have been processed and used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials, or the functioning of any cited software. Any use of trade, product or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government or the USGS. For access to the data and information the files use HyperText Markup Language (HTML) and active hyperlinks, written for World Wide Web (WWW) browsers (e.g., Netscape, Microsoft Internet Explorer). The HTML version used here may not be rendered correctly by some older WWW browsers.

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