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(Article of periodic en Anglais - 2011)

Document title

Geological constraints and Al 26-Be 10 burial dating isochrons

Authors(s) and Affiliation(s)

MUZIKAR P. (1) ;
(1) Dep. of Physics, Purdue Univ., West Lafayette, ETATS-UNIS

Abstract

The technique allowing to determine the burial age of quartz-containing sediments by measuring the concentration of cosmogenic 10Be and 26Al in the quartz is discussed. In its most basic form, the method assumes a simple history (single exposure episode followed by burial) for the quartz clasts. Balco and Rovey have recently developed an innovative isochron version of this method, which can take into account a more complicated exposure history for the quartz, and used it to date a series of glacial tills. There can be constraints on the slope and intercept of the isochron, depending on the modelling of the Balco–Rovey approach. The A. shows how to take these constraints into account when fitting the slope and intercept; they apply a Bayesian approach. They discuss the important issues that arise : a variety of choices must be made in choosing the prior, both in what geological insights to include and in how to include them

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, no7 [pp. 946-952]

Bibliographic references : 13 ref.

Collation : 4 fig., 1 annexe

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2124

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