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(Article of periodic en Anglais - 2011)

Document title

The use of ablation-dominated medial moraines as samplers for 10Be-derived erosion rates of glacier valley walls, Kichatna Mountains, AK

Authors(s) and Affiliation(s)

WARD D.J. (1) ; ANDERSON R.S. (1) ;
(1) Dep. of Geological Sciences and Inst. for Arctic and Alpine Research (INSTAAR), Univ. of Colorado, Boulder, ETATS-UNIS

Abstract

The AA. use cosmogenic 10Be concentrations in amalgamated rock samples from active, ice-cored medial moraines to constrain glacial valley sidewall backwearing rates in the Kichatna Mountains, Alaska Range, Alaska. They sampled medial moraines on each of 3 glaciers of different sizes and topographic aspects. Results and discussion about quantitatively several factors that complicate interpretation of cosmogenic concentrations in this material, including the complex scaling of production rates in very steep terrain, the stochastic nature of the rockfall erosion process, the unmixed nature of the moraine sediment, and additional cosmogenic accumulation during transport of the sediment

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2011, vol. 36, no4 [pp. 495-512]

Bibliographic references : 1 p.

Collation : 15 fig., 3 tabl., 1 annexe

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2068

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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