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Scientific reports, journal articles, and information products produced by USGS Pacific Coastal and Marine Science Center scientists.

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Peru-Chile Trench sediments and sea-floor spreading Peru-Chile Trench sediments and sea-floor spreading

The hypotheses of sea-floor spreading and plate tectonics require the removal of sediment from oceanic trenches either by crustal underthrusting or by folding against the base of a continental or insular margin. Accordingly, over a period of time the volume of sediment removed by way of spreading must be equal to the difference between the observable volume of undeformed terrigenous...
Authors
David W. Scholl, Mark N. Christensen, Roland E. von Huene, Michael S. Marlow
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