書誌事項
- タイトル別名
-
- Spinel-producing partial melting reaction in pelitic gneisses: Petrographical and synthetic experimental approach.
- デイシツ ヘン マガン ニ オケル スピネル セイセイ ブブン ユウカイ ハンノウ キサイ ガンセキガクテキ オヨビ ゴウセイ ジッケンテキ アプローチ
この論文をさがす
抄録
Petrography of two metatexite specimens from the Abukuma and Ryoke metamorphic belts in Japan suggests that spinel was produced together with cordierite and granitic melt by a partial melting reaction that consumes sillimanite and biotite. Reproductive experiments were performed at a pressure of 200 MPa and temperatures ranging from 700 to 950°C. The starting material was uncrushed Takanuki pelitic gneiss containing abundant biotite and sillimanite without spinel. From the experimental results we confirm that the following spinel-producing partial melting reaction takes place commonly at 800°C and higher temperatures.<br> Sillimanite+biotite+plagioclase+quartz±H2O→spinel+cordierite+granitic melt.<br>Of particular importance is that spinel occurs only within silica-poor portion of the granitic melts produced at temperatures lower than 900°C. On the other hand, spinel is in direct contact with quartz in the run products at 950°C, being in good harmony with the petrogenetic grid of Vielzeuf and Holloway (1988). Thus it can be pointed out that SiO2-undersaturated domains are easily formed locally during partial melting due to kinetic reasons and/or to the complete consumption of quartz by the melting reactions in pelitic rocks.
収録刊行物
-
- 岩石鉱物科学
-
岩石鉱物科学 31 (2), 97-110, 2002
一般社団法人 日本鉱物科学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390001206526787712
-
- NII論文ID
- 10007962301
-
- NII書誌ID
- AA1146088X
-
- COI
- 1:CAS:528:DC%2BD38XjslKhtbg%3D
-
- ISSN
- 13497979
- 1345630X
-
- NDL書誌ID
- 6140333
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可
