Sulfidation Textures of FeNi Alloy in Unequilibrated Chondrites and Its Petrogenesis.
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- IMAE Naoya
- National Institute of Polar Research
Bibliographic Information
- Other Title
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- 非平衡コンドライトいん石に見られるFeNi合金の硫化反応組織とその成因
- ヒヘイコウ コンドライトインセキ ニ ミラレル FeNi ゴウキン ノ リュウ
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Abstract
A lot of troilite reaction rim textures formed through sulfidation of FeNi alloy of kamacite and taenite with sulfur rich gas have been identified especially in CO3 unequilibrated carbonaceous chondrites. Troilite formation through sulfidation of FeNi alloy of kamacite and taenite with sulfur rich gas in the solar nebula is expected from the reaction kinetics as well as from the equilibrium condensation theory. On the other hand, heating experiments of mixtures including metallic iron grains and troilite powder show that troilite rim textures can be formed on chondrite parent body. Recent study shows that troilite reactionrim textures are more abundant for higher petrologic subtype (≥ 3.2). This would mean that sulfidation of metallic iron would have also proceeded in CO3 parentbody when petrologic subtype in CO3s is due to thermal metamorphism in CO3 parent body.
Journal
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- Journal of the Mineralogical Society of Japan
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Journal of the Mineralogical Society of Japan 27 (2), 105-112, 1998
Japan Association of Mineralogical Sciences
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Details 詳細情報について
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- CRID
- 1390282681503249792
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- NII Article ID
- 10008769601
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- NII Book ID
- AN00084868
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- ISSN
- 18837018
- 04541146
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- NDL BIB ID
- 4474795
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed