書誌事項
- タイトル別名
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- The titanian esseneitic diopside in Al-skarn from Myojin and Mutsuki islands in Seto Inland Sea, Japan
- ミョウジンジマ オヨビ ムツキジマ ニ ミラレル Alシツ スカルン ニ サンスル titanian esseneitic diopside
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The reinvestigation of so-called titanian fassaite from Myojin island, Seto Inland Sea of Japan, has revealed that the minerals are titanian-esseneitic-diopside by chemistry. The diopsides with similar chemical compositions were found in Mutsuki island.<br>These diopsides occur as dark crystalline aggregates of nodule in saccharodial limestone. The dark fragments in this area are recrystallized skarns, which underwent Al-Ti-Fe concentration composed of titanian esseneitic diopside, potassic-magnesiosadanagaite, hercynite, ilmenite, and aluminian titanite, as accessory phlogopite, apatite, and perovskite. These minerals almost all are rich in Ca-Al-Ti-Fe.<br> The electron microprobe analysis shows that the diopsides in this area have high Al2O3, TiO2 and Fe2O3 contents. Al ≥0.894, Ti ≥0.183, and Fe3+≥0.276 on the basis of O=6 and total cations=4. The diopsides have high molecule contents of esseneite, Ti-Tschermaks, and Ca-Tschermaks diopsides.<br> It is suggested that occurrence of the titanian esseneitic diopsides rock from Myojin and Mutsuki islands are from the sediment such as laterite or terra rossa, which is rich in the Al, Ti, and Fe, through the metamorphism with high temperature which is 600°C or more.
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 32 (2), 68-79, 2003
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
- 1390001206525724672
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- NII論文ID
- 130000253541
- 10012475138
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- NII書誌ID
- AA1146088X
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- COI
- 1:CAS:528:DC%2BD3sXlvFels78%3D
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- ISSN
- 13497979
- 1345630X
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- NDL書誌ID
- 6630430
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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
