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Van de Velde, K

Current S-Index

3.0

Sum of Dataset Indices for all datasets

Average Dataset Index per Dataset

1.0

Average Dataset Index per dataset

Total Datasets

3

Total datasets for this author

Average FAIR Score

93.6%

Average FAIR Score per dataset

Total Citations

0

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

Table 2. Lead and Ba concentrations and Pb isotopic compositions measured in Law Dome ice cores

Lead isotopic compositions and Pb and Ba concentrations have been measured in ice cores from Law Dome, East Antarctica, covering the past 6500 years. 'Natural' background concentrations of Pb (ab. 0.4 pg/g) and Ba (ab. 1.3 pg/g) are observed until 1884 AD, after which increased Pb concentrations and lowered 206Pb/207Pb ratios indicate the influence of anthropogenic Pb. The isotopic composition of 'natural' Pb varies within the range 206Pb/207Pb=1.20-1.25 and 208Pb/207Pb=2.46-2.50, with an average rock and soil dust Pb contribution of 8-12%. A major pollution event is observed at Law Dome between 1884 and 1908 AD, elevating the Pb concentration four-fold and changing 206Pb/207Pb ratios in the ice to ab. 1.12. Based on Pb isotopic systematics and Pb emission statistics, this is attributed to Pb mined at Broken Hill and smelted at Broken Hill and Port Pirie, Australia. Anthropogenic Pb inputs are at their greatest from 1900 to 1910 and from ab. 1960 to ab. 1980. During the 20th century, Ba concentrations are consistently higher than 'natural' levels and are attributed to increased dust production, suggesting the influence of climate change and/or changes in land coverage with vegetation.

Authors

  • Vallelonga, Paul T ;
  • Van de Velde, K ;
  • Candelone, Jean-Pierre ;
  • Morgan, V I ;
  • Boutron, Claude F ;
  • Rosman, K J R
0 Citations0 Mentions94% FAIR0.3 Dataset Index
10.1594/pangaea.7636852011

Table 1. Lead and Ba concentrations and Pb isotopic compositions measured in firn core samples from Styx glacier in Victoria Land, Antarctica

No description available

Authors

  • Van de Velde, K ;
  • Vallelonga, Paul T ;
  • Candelone, Jean-Pierre ;
  • Rosman, K J R ;
  • Gaspari, Vania ;
  • Cozzi, Giulio ;
  • Barbante, Carlo ;
  • Udisti, Roberto ;
  • Cescon, Paolo ;
  • Boutron, Claude F
0 Citations0 Mentions94% FAIR0.3 Dataset Index
10.1594/pangaea.7637752011

Table 2. Lead and Ba concentrations and Pb isotopic compositions measured in snow pit samples from Hercules Névé in Victoria Land, Antarctica

No description available

Authors

  • Van de Velde, K ;
  • Vallelonga, Paul T ;
  • Candelone, Jean-Pierre ;
  • Rosman, K J R ;
  • Gaspari, Vania ;
  • Cozzi, Giulio ;
  • Barbante, Carlo ;
  • Udisti, Roberto ;
  • Cescon, Paolo ;
  • Boutron, Claude F
0 Citations0 Mentions92% FAIR2.3 Dataset Index
10.1594/pangaea.7637772011