Abstract
Populations of sulfide inclusions in diamonds from the Orapa kimberlite pipe in the Kaapvaal-Zimbabwe craton, Botswana, preserve mass-independent sulfur isotope fractionations. The data indicate that material was transferred from the atmosphere to the mantle in the Archean. The data also imply that sulfur is not well mixed in the diamond source regions, allowing for reconstruction of the Archean sulfur cycle and possibly offering insight into the nature of mantle convection through time.
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- We acknowledge and thank DeBeers for providing diamonds; M. Chaussidon for sulfur isotope standards; A. D. Brandon for providing peridotite samples from Kilbourne Hole; A. Paytanfor making her data available to us; NSF NASA and American Chemical Society for support to J.F. and B.A.W.; and the NASA Astrobiologyprogram for supporting sulfur isotope studies at UCLA and University of Maryland College Park. The UCLA ion microprobe facility is partially supported by a grant from the NSF Instrumentation and Facilities program. J.F. acknowledges editing and insights of L.J. Tuit.
Dates
Type | When |
---|---|
Created | 22 years, 8 months ago (Dec. 19, 2002, 7:05 p.m.) |
Deposited | 1 year, 7 months ago (Jan. 9, 2024, 10:53 p.m.) |
Indexed | 3 weeks, 3 days ago (Aug. 5, 2025, 9:11 a.m.) |
Issued | 22 years, 8 months ago (Dec. 20, 2002) |
Published | 22 years, 8 months ago (Dec. 20, 2002) |
Published Print | 22 years, 8 months ago (Dec. 20, 2002) |
@article{Farquhar_2002, title={Mass-Independent Sulfur of Inclusions in Diamond and Sulfur Recycling on Early Earth}, volume={298}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1078617}, DOI={10.1126/science.1078617}, number={5602}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Farquhar, J. and Wing, B. A. and McKeegan, K. D. and Harris, J. W. and Cartigny, P. and Thiemens, M. H.}, year={2002}, month=dec, pages={2369–2372} }