Marine Ice-Pushed Boulder Ridge, Beaufort Sea, Alaska | Zendy

Peter W. Barnes | Zendy

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Marine Ice-Pushed Boulder Ridge, Beaufort Sea, Alaska

Author(s) -

Peter W. Barnes

Publication year - 1982

Publication title -

arctic

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.503

H-Index - 59

eISSN - 1923-1245

pISSN - 0004-0843

DOI - 10.14430/arctic2330

Subject(s) - ridge , geology , cobble , oceanography , beaufort sea , sea ice , arctic , bay , arctic ice pack , beaufort scale , antarctic sea ice , paleontology , ecology , habitat , biology

A steep-faced boulder ridge up to 4 m high by 300 m long was encountered along the arctic coast east of Prudhoe Bay, Alaska, in the summer of 1979. Marine occurrences of similar ridges are rare. Since ice-push sorts cobble- and boulder-sized material in the construction of a ridge, recent onshore excursions of ice due to wind stress on the fast ice are believed to be responsible for building the boulder ridge. Ice push is a mechanism that preferentially sorts cobble- and boulder-sized material from 1-2 m water depths and that forms boulder ridges in areas of high boulder concentrations.

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