10.1594/PANGAEA.510757
Lavelle, Mark
Mark
Lavelle
Chronostratigraphy on sediment core CRP-2 from the Ross Sea, Antarctica
PANGAEA
2000
Core wireline system
CRP-2
Sampling/drilling from ice
Cape Roberts Project (CRP)
1998-10-01T00:00:00/1998-11-25T14:20:00
en
Supplementary Publication Series of Datasets
10013/epic.28248.d001
2 datasets
application/zip
Creative Commons Attribution 3.0 Unported
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 meters 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 datum and a palaeomagnetic polarity zonation, to produce an age model for the core.
Supplement to: Lavelle, Mark (2000): Strontium isotope stratigraphy and age model for CRP-2/2A, Victoria Land Basin, Antarctica. Terra Antartica, 7(4), 611-619
163.71945000000002
-77.00598166666666
off Cape Roberts, Ross Sea, Antarctica