Age determination with strontium isotopes on sediment core CRP-1 from the Ross Sea, Antarctica, supplement to: Lavelle, Mark (1998): Strontium isotope stratigraphy of the CRP-1 drillhole, Ross Sea, Antarctica. Terra Antartica, 5(3), 691-696

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...

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Bibliographic Details
Main Author: Lavelle, Mark
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA - Data Publisher for Earth & Environmental Science 1998
Subjects:
Core wireline system
CRP-1
Sampling/drilling ice
Cape Roberts Project CRP
Cape Roberts
Ross Sea
Antarc*
Antarctica
antartic*
Online Access:https://dx.doi.org/10.1594/pangaea.510750
https://doi.pangaea.de/10.1594/PANGAEA.510750
Description
Summary: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 surface representing hiatus is 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/ky in the lower Miocene.

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