Geomorphic characterization of the U.S. Atlantic continental margin
Brothers, Daniel S.
ten Brink, Uri S.
Andrews, Brian D.
Chaytor, Jason D.
MetadataShow full item record
KeywordPassive margin; Continental slope; Classification; Submarine canyon; Seismic reflection; Multibeam bathymetry
The increasing volume of multibeam bathymetry data collected along continental margins is providing new opportunities to study the feedbacks between sedimentary and oceanographic processes and seafloor morphology. Attempts to develop simple guidelines that describe the relationships between form and process often overlook the importance of inherited physiography in slope depositional systems. Here, we use multibeam bathymetry data and seismic reflection profiles spanning the U.S. Atlantic outer continental shelf, slope and rise from Cape Hatteras to New England to quantify the broad-scale, across-margin morphological variation. Morphometric analyses suggest the margin can be divided into four basic categories that roughly align with Quaternary sedimentary provinces. Within each category, Quaternary sedimentary processes exerted heavy modification of submarine canyons, landslide complexes and the broad-scale morphology of the continental rise, but they appear to have preserved much of the pre-Quaternary, across-margin shape of the continental slope. Without detailed constraints on the substrate structure, first-order morphological categorization the U.S. Atlantic margin does not provide a reliable framework for predicting relationships between form and process.
This paper is not subject to U.S. copyright. The definitive version was published in Marine Geology 338 (2013): 46–63, doi:10.1016/j.margeo.2012.12.008.
Suggested CitationArticle: Brothers, Daniel S., ten Brink, Uri S., Andrews, Brian D., Chaytor, Jason D., "Geomorphic characterization of the U.S. Atlantic continental margin", Marine Geology 338 (2013): 46–63, DOI:10.1016/j.margeo.2012.12.008, https://hdl.handle.net/1912/6124
Showing items related by title, author, creator and subject.
Geomorphology and Neogene tectonic evolution of the Palomares continental margin (Western Mediterranean) Gomez de la Peña, Laura; Gracia, Eulalia; Munoz, Araceli; Acosta, Juan; Gomez-Ballesteros, María; Ranero, Cesar R.; Uchupi, Elazar (2016-03)The Palomares continental margin is located in the southeastern part of Spain. The margin main structure was formed during Miocene times, and it is currently part of the wide deformation zone characterizing the region ...
Data file, Continental Margin Program, Atlantic Coast of the United States : vol. 2 sample collection and analytical data Hathaway, John C. (Woods Hole Oceanographic Institution, 1971-02)The purpose of the data file presented below is twofold: the first purpose is to make available in printed form the basic data relating to the samples collected as part of the joint U.S. Geological Survey - Woods Hole ...
Milliman, John D.; Manheim, Frank T.; Pratt, Richard M.; Zarudzki, E. F. K. (Woods Hole Oceanographic Institution, 1967-12)In late June and July, 1967, the Deep Submergence Research Vehicle (DSRV) ALVIN, aboard its mother snip, LULU, proceeded from the spring base of operations, Nassau, to its home port of Woods Hole. During this trip, from ...