10.1594/PANGAEA.184981
Lavelle, Mark
Mark
Lavelle
(Table 1) Strontium isotope data for marine carbonates of sediment core CRP-3
PANGAEA
2001
Depth, top/min
Depth, bottom/max
Lithologic unit/sequence
Sample type
Shell debris
Preservation
Comment
Strontium-87/Strontium-86 ratio
Strontium-87/Strontium-86 ratio, error
Age, dated
Age, dated, range, minimum
Age, dated, range, maximum
Core wireline system
Isotope ratio mass spectrometry
Age, strontium isotope, LOWESS fit Howarth & McArthur (1997)
CRP-3
Sampling/drilling from ice
Cape Roberts Project (CRP)
1999-10-09T00:00:00/1999-11-19T00:00:00
en
Supplementary Dataset
10013/epic.28217.d001
150 data points
text/tab-separated-values
Creative Commons Attribution 3.0 Unported
Strontium isotope stratigraphy was used to date 5 discrete horizons within the CRP-3 drillhole. A single in situ modiolid bivalve fragment at 10.88 mbsf gives an age of 30.9 (±0.8) Ma for the associated sediment. The four remaining well preserved fragments recovered from 29.94-190.31 mbsf are within error of this age, indicating a high sedimentation rate and suggesting little time is missing in disconformities. The diagenetic alteration of carbonate macrofossils by continental fluids (and possibly seawater) is a common feature to 320 mbsf.
Supplement to: Lavelle, Mark (2001): Strontium isotope stratigraphy for CRP-3, Victoria Land Basin, Antarctica. Terra Antartica, 8(4), 593-598
163.719
-77.006
Ross Sea