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Dendritic surge marks ('Dendrophycus') along modern stream banks

Lee R. High and M. Dane Picard
Dendritic surge marks ('Dendrophycus') along modern stream banks
Contributions to Geology (1968) 7 (1): 1-6


Dendrophycus, originally described as the imprint of a marine alga of uncertain affinities, has long been suspect and is now generally considered to be a rill-mark. Several structures identical to Dendrophycus have been seen along creek banks in Wyoming and Colorado. These structures were observed to form as flood waters surged against the bank and eroded a modified dendritic pattern. The requirements for formation are: steep slope, semi-consolidated silt or fine sand, standing water, and surging currents. These conditions occur in marine and paralic settings, as well as fluvial. Because thestructure is inorganic, the term dendritic surge marks is suggested.

ISSN: 0010-7980
Serial Title: Contributions to Geology
Serial Volume: 7
Serial Issue: 1
Title: Dendritic surge marks ('Dendrophycus') along modern stream banks
Pages: 1-6
Published: 1968
Text Language: English
Publisher: University of Wyoming, Laramie, WY, United States
Accession Number: 1968-051551
Categories: Sedimentary petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
N37°00'00" - N41°00'00", W109°00'00" - W102°00'00"
N41°00'00" - N45°00'00", W111°04'60" - W104°04'60"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States
Update Code: 1968
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