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Strontium isotope stratigraphy and age model for CRP-2/2A, Victoria Land basin, Antarctica

Lavelle, M.. 2000 Strontium isotope stratigraphy and age model for CRP-2/2A, Victoria Land basin, Antarctica. Terra Antartica, 7 (4-5). 611-619.

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Abstract/Summary

Strontium isotope stratigraphy was used to date 16 discrete horizons within the CRP-2/2A drillhole. Reworked Quaternary (<1.7 Ma) and possible Pliocene (<2.4 Ma) sediments overlie a major sequence boundary at 25.92 metres below sea floor (mbsf). This hiatus is estimated to account for c. 16 Myr of missing section. Early Miocene to ?earliest Oligocene (c. 18.6 to >31 Ma) deposits below this boundary were cut by multiple erosion surfaces of uncertain duration. Strontium isotope ages are combined with 40Ar/39Ar dates, diatom and calcareous nannofossil datums and a palaeomagnetic polarity zonation, to produce an age model for the core.

Item Type: Publication - Article
Programmes: BAS Programmes > Pre 2000 programme
Date made live: 28 Nov 2012 11:46
URI: http://nora.nerc.ac.uk/id/eprint/20616

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