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 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.

Metadata Access
Creator Lavelle, Mark
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 1998
Rights Creative Commons Attribution 3.0 Unported (CC-BY)
Language English
Resource Type Supplementary Collection of Datasets
Format application/zip
Discipline Earth System Research
Spatial Coverage (77S,164E)
Temporal Point 1997-10-17T11:59:59Z