Controls on pebbles size and shape in streams of the Swiss Alps

Litty, Camille; Schlunegger, Fritz (2017). Controls on pebbles size and shape in streams of the Swiss Alps. Journal of geology, 125(1), pp. 101-112. University of Chicago Press, Journals Division 10.1086/689183

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Although the size and shape of pebbles reflect the ensemble of sediment supply and transport processes along a stream, neither positive nor negative correlations have been found between the grain size of gravel bars, sediment flux, water discharge, and river flow strengths in Swiss streams. The relative frequency of 207–307 hillslope angles per catchment is the only variable that positively correlates with the size of the largest clasts (D96 percentile). We relate these observations to the detachment-limited states of the Swiss streams where ongoing fluvial dissection steepens the bordering hillslopes, thereby promoting the supply of material through lithology-controlled failure.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Geological Sciences

UniBE Contributor:

Litty, Camille and Schlunegger, Fritz

Subjects:

500 Science > 550 Earth sciences & geology

ISSN:

0022-1376

Publisher:

University of Chicago Press, Journals Division

Language:

English

Submitter:

Camille Litty

Date Deposited:

03 Aug 2017 10:39

Last Modified:

03 Aug 2017 10:39

Publisher DOI:

10.1086/689183

BORIS DOI:

10.7892/boris.101089

URI:

https://boris.unibe.ch/id/eprint/101089

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