書誌事項
- タイトル別名
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- Experimental study on the mechanism of metasomatism in the scheelite-aqueous MnCl2 solution system.
- 灰重石-MnCl2-H2O系における交代作用のメカニズムに関する実験的研究
- カイジュウセキ MnCl2 H2Oケイ ニ オケル コウタイ サヨウ ノ メカニズム ニ カンスル ジッケンテキ ケンキュウ
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Experiments on metasomatism were carried out in the scheelite-aqueous MnCl2 solution system at 100, 125 and 150°C.<br>As a result, the replacement texture of scheelite by huebnerite was confirmed in all experimental systems. Based on SEM observation of the section of the reacted samples, dissolution of scheelite and precipitation of huebnerite are considered to have occurred simultaneously. The replacement texture of scheelite by huebnerite progresses toward the inside of scheelite because there was no change in the form of the sample after the reaction. Since molar volume of huebnerite and scheelite are 41.88 and 47.05 cm3, respectively, large volume of void space is formed in the reaction layer.<br> Activation energies of the dissolution reaction of scheelite were estimated to be 56.4 kJ/mol in 0.01 mol/l aqueous MnCl2 solution, 70.2 kJ/mol in 0.10 mol/l aqueous MnCl2 solution and 62.2 kJ/mol in 1.00 mol/l aqueous MnCl2 solution.<br> SEM observation, observation in the polished section and estimated activation energies suggest that the dissolution reaction of scheelite is a rate-limiting factor.
収録刊行物
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- 岩石鉱物科学
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岩石鉱物科学 31 (2), 77-86, 2002
一般社団法人 日本鉱物科学会
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詳細情報 詳細情報について
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- CRID
- 1390282681503499776
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- NII論文ID
- 10007962244
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- NII書誌ID
- AA1146088X
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- COI
- 1:CAS:528:DC%2BD38XjslKhtbo%3D
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- ISSN
- 13497979
- 1345630X
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- NDL書誌ID
- 6140306
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可