Computer Science
Scientific paper
Apr 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987geokh......586b&link_type=abstract
Geokhimiia (ISSN 0016-7525), April 1987, p. 586-590. In Russian.
Computer Science
Barometers, Meteoritic Composition, Troilite, Zincblende, Additives, Iron Compounds, Nickel, Solubility, Sulfides
Scientific paper
Discrepancies were observed by comparing the equation of Barton and Toulmin (1966) for the limiting solubility of FeS in sphalerite (which is the 'scale' in the sphalerite-troilite barometer of Barton and Toulmin) and the data on FeS solubility of Sorokin and Chichagov (1974). For this paper, some of the Barton and Toulmin experiments were repeated; in addition, the effect of Ni as an impurity in metallic Fe on the FeS solubility was investigated. A new relationship was obtained between the limiting solubility of FeS in sphalerite, the absolute temperature, and the pressure, which is slightly different from that obtained on the basis of Barton and Toulmin data and which agrees with the results of Sorokin and Chichagov. Introduction of Ni had little effect. The pressures of formation for several meteorites were estimated and compared with pressures obtained, on the basis of Barton and Toulmin data, by Hutchison and Scott (1983). The greatest discrepancies are observed for meteorites formed at very low pressures.
Balabin Alexey I.
Osadchii Eu. G.
Senin V. G.
Urusov Vadim S.
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