NOTE: Comment on ``The Rate of Pyrite Decomposition on the Surface of Venus''

Details NOTE: Comment on ``The Rate of Pyrite Decomposition on the Surface of Venus'' NOTE: Comment on ``The Rate of Pyrite Decomposition on the Surface of Venus''

Aug 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997icar..128..472w&link_type=abstract

Icarus, Volume 128, Issue 2, pp. 472-473.

Computer Science

2

Scientific paper

Fegley et al. (1995. B. Fegley Jr., K. Lodders, A. H. Treiman, and G. Klingelhoffer. Icarus 115, 159-180.) describe a series of furnace experiments in which the mineral pyrite was decomposed in various gas environments. They use these data to estimate the rate of pyrite decomposition on the surface of Venus. The issue of the presence or absence of pyrite on the Venus surface is of significance because pyrite has an important potential effect on the electromagnetic properties of planetary surface materials sensed by radar (1997. J. A. Wood. In Venus II (S. Bougher, D. M. Hunten, and R. Phillips, Eds.). Univ. of Arizona Press, Tucson, AZ, in press). We argue that the decomposition rates found by Fegley et al. are not applicable to the surface of Venus, because none of the gas environments used by those authors accurately reproduced the atmospheric composition at the Venus surface.

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