Automated Author Profile

Oxburgh, Rachel

Current S-Index

2.7

Sum of Dataset Indices for all datasets

Average Dataset Index per Dataset

2.7

Average Dataset Index per dataset

Total Datasets

1

Total datasets for this author

Average FAIR Score

96.2%

Average FAIR Score per dataset

Total Citations

1

Total citations to the author's datasets

Total Mentions

0

Total mentions of the author's datasets

S-Index Interpretation

S-Index Over Time

Cumulative Citations Over Time

Cumulative Mentions Over Time

Datasets

Osmium concentration and isotope composition of ODP Hole 165-1002C (Table 1)

A high resolution record of seawater osmium isotopic composition (35 samples over the past 191,000 yr) has been obtained from sediments from Ocean Drilling Program (ODP) Leg 165 Site 1002 in the Cariaco Basin, Venezuela. Strong correlations are observed between 187Os/188Os and both the local and global oxygen isotopic records, with less radiogenic values observed during glacial intervals. In conjunction with previous analyses of sediments from the East Pacific Rise, the Santa Barbara Basin, and the Japan Sea, the data demonstrate conclusively that there have been ocean-wide changes in seawater 187Os/188Os over the Pleistocene. Global seawater excursions to relatively unradiogenic 187Os/188Os, indicating decreased continental inputs, occur during cold intervals, times of increased aridity and increased ice cover of old (radiogenic) continental masses. The data thus indicate a direct climatic control on chemical weathering rates and/or composition of weathering products on a glacial-interglacial timescale.

Authors

  • Oxburgh, Rachel ;
  • Pierson-Wickmann, Anne-Catherine ;
  • Reisberg, Laurie ;
  • Hemming, Sidney R
1 Citation0 Mentions96% FAIR2.7 Dataset Index
10.1594/pangaea.7255072007