Deep-sea fan paleocurrent patterns of the Eocene Butano Sandstone, Santa Cruz Mountains, California

Journal of Research of the U.S. Geological Survey
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Abstract

The Butano Sandstone is an Eocene continental borderland deep-sea fan deposit located in the Santa Cruz Mountains, Calif.  Paleoslope measurements from contorted strata within it yield a regional northward paleoslope for the fan. Detailed paleocurrent measurements from conglomerate clast orientations, flute casts, groove casts, current-ripple markings, small-scale cross-strata, convolute laminations, and flame structures yield a sediment-dispersal pattern characterized by northward transport of coarser grained sediments downfan along major channels and transport of finer grained sediments outward and away from channels by overspilling. The overall paleocurrent pattern is oriented radially outward from the fan apex and indicates that the growth, development, and dispersal of sediments on this
ancient deep-sea fan resembled that on modern deep-sea fans.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Deep-sea fan paleocurrent patterns of the Eocene Butano Sandstone, Santa Cruz Mountains, California
Series title Journal of Research of the U.S. Geological Survey
Volume 1
Issue 4
Year Published 1973
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Description 14 p.
First page 439
Last page 452
Country United States of America
State California
Other Geospatial Santa Cruz Mountains
Online Only (Y/N) N
Additional Online Files (Y/N) N
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