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A new mechanism for seaward dispersion of midshelf sediments
Author(s) -
LARSEN LAWRENCE H.
Publication year - 1982
Publication title -
sedimentology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.494
H-Index - 108
eISSN - 1365-3091
pISSN - 0037-0746
DOI - 10.1111/j.1365-3091.1982.tb01724.x
Subject(s) - geology , swell , sediment , seafloor spreading , silt , continental shelf , oceanography , sorting , continental margin , amplitude , dispersion (optics) , storm , geomorphology , seismology , tectonics , physics , quantum mechanics , computer science , optics , programming language
Silt‐ to sand‐size particles may be transported across middle continental shelves by currents forced by the radiation stress of variable‐amplitude swell. With the passage of each group of waves of sufficient amplitude for the high waves in the group to resuspend bottom sediments, there is a seaward bias in the return of sediments to the seafloor. Over a storm season, with the passage of many wave groups, the net seaward sediment displacement may be 1‐5 km.