Aehnelt, M, Worden, RH, Hodgson, DM et al. (3 more authors) (2013) Geochemical correlation in an exhumed submarine channel complex (Tabernas Basin, Se Spain): Comparison to sedimentological correlation at various length scales. Journal of Sedimentary Research, 83 (8). 669 - 690. ISSN 1527-1404
Abstract
Whole-rock, inorganic, geochemical data have previously been used to aid characterization and stratigraphic correlation of fossil-poor clastic sedimentary deposits, although this approach has not yet been calibrated by testing chemostratigraphic correlations against physical stratigraphic correlations from outcrop. Chemical data from a well-exposed siliciclastic succession in a Tortonian (late Miocene) submarine slope channel system in the Tabernas Basin of southern Spain were generated using X-ray fluorescence supplemented by X-ray diffraction, SEM analysis, and light microscopy. Amongst the > 60 elements measured, nearly a quarter of them have proved to be useful or reliable for geochemically based correlation at the tested scales (∼10 m, ∼ 50 m, ∼ 100 m). These elements are SiO, KO, AlO, CaO, and TiO, as well as Zr, Nb, Th, Rb, Cs, As, and the rare earth elements, La, Nd, and Ce. High-resolution, bed-to-bed geochemical correlation is feasible over short distances (∼ 10 m). Geochemical data from sections in beds that are traceable suggest that a given stratigraphic level seems to be geochemically homogeneous with respect to some key elements. Geochemical data also provide a useful aid for high-resolution sedimentary correlation, at distances of several tens of meters up to at least 100 m. Since each individual bed seems to be broadly homogeneous in composition, at a larger scale it is possible to discern a provenance signal in geochemical data. Chemical stratigraphy thus seems to work even in stratigraphically complicated submarine channel complexes.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2013, Society for Sedimentary Geology. This is an author produced version of a paper published inpublication in Journal of Sedimentary Research. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 04 Feb 2014 14:03 |
Last Modified: | 29 Mar 2018 08:31 |
Published Version: | http://dx.doi.org/10.2110/jsr.2013.41 |
Status: | Published |
Publisher: | Society for Sedimentary Geology |
Refereed: | Yes |
Identification Number: | 10.2110/jsr.2013.41 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:77617 |