Spatially limited mud turbidites on the Cascadia margin: Segmented earthquake ruptures?

C. Goldfinger, A. E. Morey, B. Black, J. Beeson, C. H. Nelson, J. Patton

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

A series of 23 thin, mostly mud-silt turbidites are found interspersed between larger, well-dated and regionally correlated paleoseismic sandy turbidites that extend along most of the Cascadia margin, northwestern United States. Investigation of the structure, distribution, and sedimentology of these thin mud-silt units supports the interpretation of these units as turbidites originating on the continental slope. Interpretation of mud turbidites is inhibited by bioturbation and lower response to analytical and imaging techniques; nevertheless most of the 23 interpreted beds exhibit most of the characteristics of coarser turbidites. These characteristics include sharp.

Original languageEnglish (US)
Pages (from-to)2109-2146
Number of pages38
JournalNatural Hazards and Earth System Sciences
Volume13
Issue number8
DOIs
StatePublished - 2013
Externally publishedYes

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

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