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Multibeam mapping of the Pinnacles region, Gulf of Mexico

Open-File Report 2002-6

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Abstract

Recent USGS mapping shows an extensive deep (~100 m) reef tract occurs on the Mississippi-Alabama outer continental shelf (Figure 1). The tract, known as "The Pinnacles", is apparently part of a sequence of drowned reef complexes along the "40-fathom" shelf edge of the northern Gulf of Mexico (Ludwick and Walton, 1957). It is critical to determine the accurate geomorphology of these deep-reefs because of their importance as benthic habitats for fisheries. The Pinnacles have previously been mapped using a single-beam echo sounder (Ludwick and Walton,1957), sidescan sonar (Laswell et al., 1990), and the TAMU2 towed single-beam sidescan-sonar system (Anonymous, 1999). These existing studies do not provide the quality of geomorphic data necessary for reasonable habitat studies.

Study Area

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Multibeam mapping of the Pinnacles region, Gulf of Mexico
Series title:
Open-File Report
Series number:
2002-6
Year Published:
2002
Language:
English
Publisher:
U.S. Geological Survey
Contributing office(s):
Pacific Coastal and Marine Science Center
Description:
HTML Document
Country:
United States
Other Geospatial:
Gulf Of Mexico
Online Only (Y/N):
Y