Sediment movement on the continental shelf near Washington and Oregon

M. Grant Gross; Jack L. Nelson

doi:10.1126/science.154.3751.879

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USGS · 70171395

Sediment movement on the continental shelf near Washington and Oregon

M. Grant Gross·Jack L. Nelson

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Abstract

The nuclides zinc-65 and cobalt-60 associated with river-borne particulate matter are incorporated in sediment on the Continental Shelf near the Colum- ia River. Changes in the relative concentrations of zinc-65 and cobalt-60 and in the ratio of the activity of zinc-65 and cobalt-60 suggest that radioactive sediment moves northward 12 to 30 kilometers per year along the shelf and 2.5 to 10 kilometers per year westward away from the coast.

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Source-reported bounding extent: 42.032974332441405° to 48.62564740882851° latitude; -128.9794921875° to -123.167724609375° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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M. Grant Gross, Jack L. Nelson. 1966. Sediment movement on the continental shelf near Washington and Oregon. https://doi.org/10.1126/science.154.3751.879

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