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dc.contributor.authorSharman, Glenn R.
dc.contributor.authorSchwartz, Theresa M.
dc.contributor.authorShumaker, Lauren E.
dc.contributor.authorTrigg, Cody R.
dc.contributor.authorNieminski, Nora M.
dc.contributor.authorSickmann, Zachary T.
dc.contributor.authorMalkowski, Matthew A.
dc.contributor.authorHourigan, Jeremy K.
dc.contributor.authorSchulein, Benjamin J.
dc.contributor.authorGraham, Stephan A.
dc.identifier.citationSharman, G.R., Schwartz, T.M., Shumaker, L.E., Trigg, C.R., Nieminski, N.M., Sickmann, Z.T., Malkowski, M.A., Hourigan, J.K., Schulein, B.J., Graham, S.A. (2017) Submarine mass failure within the deltaic Domengine Formation (Eocene), California (USA). Geosphere 13(3): 950-973. doi: 10.1130/GES01442.1en_US
dc.descriptionGeological Society of America PO BOX 9140 BOULDER, CO 80301-9140 USAen_US
dc.description.abstractOutcrops within the Eocene Domengine Formation (central California) provide an exceptional opportunity to observe the relationship between depositional facies and submarine mass failure. The Domengine Formation is interpreted as an assemblage of heterolithic, shallow-to marginal-marine deposits that record progradation and aggradation prior to regional flooding and local collapse of the shelf. Structural analysis of soft-sediment folds and reverse faults within the informally named New Idria mass-transport deposit (MTD) suggests transport toward the west to southwest, which is consistent with paleoflow measurements from cross bedding within the MTD. Depositional facies have a strong influence on the character of soft-sediment deformation (e.g., style and scale of folding and faulting), and major layer-parallel detachment surfaces within and below the New Idria MTD occur where mudstone-dominated or heterolithic units underlie sandstone-dominated units. Conditions favorable to gravitational instability and eventual collapse of the shelf include (1) high sedimentation rates within a rapidly aggrading system; (2) loading of under-compacted, mechanically weak, fine-grained layers by overlying, denser sand bodies; and (3) earthquake seismicity and/or over-steepening of slopes within a tectonically active, convergent margin setting. This study provides a rare detailed glimpse into the collapse of a deltaic stratigraphic sequence, yielding insight into the linkage between marginal marine facies and depositional architecture and the propensity for submarine mass failure of continental shelves.en_US
dc.description.sponsorshipStanford School of Earth, Energy, and Environmental Sciences / Quantitative Clastics Laboratory at the Bureau of Economic Geology, Jackson School of Geosciences, The University of Texas at Austin.en_US
dc.publisherThe Geological Society of Americaen_US
dc.subjectslump foldsen_US
dc.subjecttransport complexesen_US
dc.titleSubmarine mass failure within the deltaic Domengine Formation (Eocene), California (USA)en_US
dc.description.versionPublished articleen_US
dc.description.embargoThis post-print of the article is available for viewing to the public after June 30, 2018en_US
dc.contributor.avlauthorSchwartz, Theresa M.

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