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    Improving constraints on apatite provenance: nd measurement on fission-track-dated grains

    Carter, Andrew and Foster, G.L. (2009) Improving constraints on apatite provenance: nd measurement on fission-track-dated grains. In: Lisker, F. and Ventura, B. and Glasmacher, U.A. (eds.) Thermochronological Methods: From Palaeotemperature Constraints to Landscape Evolution Models. London, UK: Geological Society of London, pp. 57-72. ISBN 9781862392854.

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    Abstract

    Detrital thermochronology is commonly used to locate source and improve the understanding of a region's long-term development. Provenance detrital age data typically comprise a number of distinct age modes representing contributions from a number of different sources. For methods such as apatite fission track (FT) this can present a challenge in that direct assignment of age modes to particular lithological or tectono-stratigraphic units is rarely possible, particularly when ancient orogenic sediments are examined. A new approach described here is based on measuring Nd isotopic data on single apatites by laser ablation ICPMS where the 143Nd/144Nd ratios are diagnostic of grain source. By combining Nd isotopic measurement with apatite FT analysis it is possible to link detrital apatite FT ages to specific rock unit sources. The methodology and wider benefits of this new approach are discussed using examples from the Himalaya and Andaman Islands.

    Metadata

    Item Type: Book Section
    School: Birkbeck Schools and Departments > School of Science > Earth and Planetary Sciences
    Depositing User: Sarah Hall
    Date Deposited: 17 May 2016 11:39
    Last Modified: 17 May 2016 11:39
    URI: http://eprints.bbk.ac.uk/id/eprint/15194

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