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Lunar apatite with terrestrial volatile abundances

Boyce, Jeremy W. and Liu, Yang and Rossman, George R. and Guan, Yunbin and Eiler, John M. and Stolper, Edward M. and Taylor, Lawrence A. (2010) Lunar apatite with terrestrial volatile abundances. Nature, 466 (7305). pp. 466-469. ISSN 0028-0836. doi:10.1038/nature09274.

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The Moon is thought to be depleted relative to the Earth in volatile elements such as H, Cl and the alkalis. Nevertheless, evidence for lunar explosive volcanism has been used to infer that some lunar magmas exsolved a CO-rich and CO_2-rich vapour phase before or during eruption. Although there is also evidence for other volatile species on glass spherules, until recently there had been no unambiguous reports of indigenous H in lunar rocks. Here we report quantitative ion microprobe measurements of late-stage apatite from lunar basalt 14053 that document concentrations of H, Cl and S that are indistinguishable from apatites in common terrestrial igneous rocks. These volatile contents could reflect post-magmatic metamorphic volatile addition or growth from a late-stage, interstitial, sulphide-saturated melt that contained ~1,600 parts per million H_2O and ~3,500 parts per million Cl. Both metamorphic and igneous models of apatite formation suggest a volatile inventory for at least some lunar materials that is similar to comparable terrestrial materials. One possible implication is that portions of the lunar mantle or crust are more volatile-rich than previously thought.

Item Type:Article
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URLURL TypeDescription ReadCube access
Rossman, George R.0000-0002-4571-6884
Guan, Yunbin0000-0002-7636-3735
Stolper, Edward M.0000-0001-8008-8804
Additional Information:© 2010 Macmillan Publishers Limited. Received 11 March 2010; Accepted 16 June 2010. This work was funded by grants from NASA Cosmochemistry (NNX08AG54G to L.A.T. and NNX09AG40G to E.M.S.), the NSF (OCE-0840983 to J.W.B.) and the Moore foundation for support of the Caltech Microanalysis Center. Author Contributions: J.W.B. led the generation and interpretation of the data, and the writing of the Letter. Y.L. prepared the rock section of 14053, collected BSE and EMP data, and contributed to the data interpretation and paper writing. G.R.R. conducted the infrared analyses of the apatites used for SIMS standards, performed the necessary calibrations of the infrared data and contributed to the data interpretation and paper writing. Y.G. set up the SIMS instrument, assisted in the formulation of the analytical protocol, carried out the SIMS measurements, and assisted in data processing and discussion. J.M.E. is the director of the Caltech Center for Microanalysis, and contributed to the data analysis and paper writing. E.M.S. contributed to the data interpretation and the paper writing. L.A.T initiated the collaboration, was allocated the 14053 sample by NASA, and contributed to the data interpretation and paper writing.
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Gordon and Betty Moore FoundationUNSPECIFIED
Issue or Number:7305
Record Number:CaltechAUTHORS:20100811-091146314
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Official Citation:Boyce, J., Liu, Y., Rossman, G. et al. Lunar apatite with terrestrial volatile abundances. Nature 466, 466–469 (2010).
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:19389
Deposited By: Tony Diaz
Deposited On:13 Aug 2010 17:16
Last Modified:08 Nov 2021 23:52

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