3.5-kHz Data Collected in the Wilmington Canyon Area During 1980, Endeavor Cruise 80-EN-056
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Abstract
During 1980, geophysical data were collected seaward of New Jersey in the vicinity of Wilmington Canyon on three cruises, GYRE 80-G-7B, GYRE 80-G-BB, and ENDEAVOR 80-EN-056 (discussed here). The objectives of these surveys of the Continental Slope and upper Rise, including Wilmington Canyon and the adjacent margin, were to extend existing geophysical coverage to the south of Wilmington Canyon and to provide detailed geologic and geophysical data on the poss.ible origin and evolution of submarine canyons and on sediment transport and other processes within the canyon domain. The geology of this area near Wilmington Canyon was discussed by McGregor, Stubblefield, and others and Stubblefield and others.
On ENDEAVOR Cruise 80-EN-056, during October 9-10, 1980, a series of 3.5-kHz profiles was collected. The objective of acquiring these data was to supplement data from GYRE 80-G-7B so that a bathymetric map based on 1-km-spaced grid of data could be constructed. The 3.5-k.Hz system consisted of a hull-mounted transducer and a signal correlator. Ship's speed during the survey was 10 knots (18 km/hr). Data were recorded on a strip chart at a 1-second sweep rate. Navigational control for the cruise was based on Loran C. All times given on the data and navigation plots are in Greenwich mean time (GMT or Z).
The quality of the records is very good, although time marks had to be added manually. Maximum subbottom penetration was approximately 100 m.
Original records may be viewed at the u.s. Geological Survey, Woods Hole, MA 02543. Microfilms of the data and 1:40,000 scale trackcharts can be purchased only from the National Geophysical and Solar-Terrestr.ial Data Center, NOAA/EDIS/NGSDC, Code D621, 325 Broadway, Boulder, Colorado, 80303 (303-497-6338).
Suggested Citation
McGregor, B. A., 1982, 3.5-kHz data collected in the Wilmington Canyon area during 1980, Endeavor cruise 80-EN-056: U.S. Geological Survey Open-File Report 1982-498, 4 p., https://pubs.er.usgs.gov/publication/ofr82498.
ISSN: 2331-1258 (online)
Table of Contents
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | 3.5-kHz Data Collected in the Wilmington Canyon Area During 1980, Endeavor Cruise 80-EN-056 |
| Series title | Open-File Report |
| Series number | 82-498 |
| DOI | 10.3133/ofr82498 |
| Year Published | 1982 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | Coastal and Marine Geology Program |
| Description | 4 p. |
| Google Analytic Metrics | Metrics page |