Gulf of Alaska

Chatham fan and adjacent upper Baranof Fan channels and levee, U.S. Gulf of Alaska margin

Gardner, James V. and Mayer, L. A., Chatham fan and adjacent upper Baranof Fan channels and levee, U.S. Gulf of Alaska margin, in Atlas of Submarine Glacial Landforms: Modern, Quaternary and Ancient. Geological Society, vol. Memoir, Submitted.

The University of New Hampshire’s Center for Coastal & Ocean Mapping collected ~321,500 km2 of bathymetry and backscatter data of the U.S. Gulf of Alaska continental margin (Fig. 1a) using a 12-kHz multibeam echosounder in support of the U.S. Extended Continental Shelf (United Nations Law of the Sea Treaty) project (Gardner and Mayer, 2005). A previously unmapped small submarine fan, unofficially named Chatham fan (Figs. 1b and 1c), was identified that has buried a portion of the head of the much larger Baranof Fan (Stevenson and Embley, 1987; von Huene, 1989; LeVoir et al., 2011).

Gulf Of Alaska - Backscatter

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