Late Pleistocene channel-levee development on Monterey submarine fan, central California

W. R. Normark

doi:10.1007/s003670050066

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Late Pleistocene channel-levee development on Monterey submarine fan, central California

W. R. Normark

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Abstract

Much of the modern upper (proximal) Monterey fan is a channel–levee complex, the Upper Turbidite Sequence (UTS), that was deeply eroded after the channel breached a volcanic ridge to reach a deeper base level. Ages of sediment samples collected with the ALVIN submersible from the deepest outcrop within the channel–levee system, 390 m below the adjacent western levee crest, indicate that the UTS deposits accumulated at ≥1 m ka −1 during the last 500 ka. Neogene and Early Pleistocene sediment accumulation on the fan prior to the UTS was much slower (<0.03 m ka −1 ), and underlying turbidite systems(?) had substantially different morphologic expression(s).

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Geo-Marine Letters Article

Source-reported bounding extent: 35.299385520898596° to 37.10209851973849° latitude; -123.7968195975298° to -121.6856342263831° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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W. R. Normark. 1999. Late Pleistocene channel-levee development on Monterey submarine fan, central California. https://doi.org/10.1007/s003670050066

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