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Imbrication and initial dip in a Keweenawan conglomerate bed [Michigan]

Imbrication and initial dip in a Keweenawan conglomerate bed [Michigan]

Authors :
Walter Stanley White
Source :
Journal of Sedimentary Research. 22:189-199
Publication Year :
1952
Publisher :
Society for Sedimentary Geology, 1952.

Abstract

The source of rhyolitic debris composing conglomerate beds in the Keweenawan lava series of northern Michigan has not been firmly established heretofore. Statistical measurement of imbrication in one bed, the Houghton conglomerate, indicates that the depositing stream flowed from southeast to northwest. The average inclination of pebbles, corrected for the present dip of the bed, is 8 degrees SE. This is compared with the inclinations of imbricated pebbles measured by Krumbein in California flood gravels. In addition, many pebbles in the Houghton conglomerate are inclined at about 40 degrees to bedding it is suggested that these pebbles may have slumped into small scour craters.

Details

ISSN :
15271404
Volume :
22
Database :
OpenAIRE
Journal :
Journal of Sedimentary Research
Accession number :
edsair.doi...........9a60543459161a9cce9dbdd9ff6aebc4
Full Text :
https://doi.org/10.1306/d42694f9-2b26-11d7-8648000102c1865d