Strontium-isotope stratigraphy of the CRP-1 drillhole, Ross Sea, Antarctica

Lavelle, M.. 1998 Strontium-isotope stratigraphy of the CRP-1 drillhole, Ross Sea, Antarctica. Terra Antartica, 5 (3). 691-696.

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Strontium isotope stratigraphy was used to date five discrete horizons within CRP- 1. Early and late Quaternary (0 87- 1 3 Ma and 0-0 67 Ma respectively) age sediments overlie a major sequence boundary at 43.15 meters below sea floor (mbsf) This hiatus is estimated to account for -16 m y of missing section. Early Miocene (16 6-20 8-25 Ma) age deposits below this boundary are in turn cut by multiple erosion surfaces representing hiatuses of between 0.2 and 1.2 m.y. Estimated minimum sedimentation rates range between 0.9 and 2.8 cm/k.y. in the Quaternary, and 1.5 and 6.4 cm/k.y. in the lower Miocene.

Item Type: Publication - Article
Programmes: BAS Programmes > Pre 2000 programme
Date made live: 04 Dec 2013 12:13 +0 (UTC)

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