Publication Date:
1997-07-18
Description:
Sulfurization of meteoritic metal in H2S-H2 gas produced three different sulfides: monosulfide solid solution [(Fe,Ni)1-xS], pentlandite [(Fe,Ni)9-xS8], and a phosphorus-rich sulfide. The composition of the remnant metal was unchanged. These results are contrary to theoretical predictions that sulfide formation in the solar nebula produced troilite (FeS) and enriched the remaining metal in nickel. The experimental sulfides are chemically and morphologically similar to sulfide grains in the matrix of the Alais (class CI) carbonaceous chondrite, suggesting that these meteoritic sulfides may be condensates from the solar nebula.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lauretta, D S -- Lodders, K -- Fegley, B Jr -- New York, N.Y. -- Science. 1997 Jul 18;277(5324):358-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Planetary Chemistry Laboratory, Department of Earth and Planetary Sciences, Campus Box 1169, Washington University, One Brookings Drive, St. Louis, MO 63130-4899, USA. lauretta@wunder.wustl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9219690" target="_blank"〉PubMed〈/a〉
Keywords:
Ferrous Compounds/chemistry
;
Hydrogen/chemistry
;
Iron/chemistry
;
*Meteoroids
;
Nickel/chemistry
;
*Solar System
;
Sulfides/*chemistry
;
Temperature
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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