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Petrology of Pelitic Schists in the Oligoclase-Biotite Zone of the Sanbagawa Metamorphic Terrain,Japan: Phase Equilibria in High-Grade Zone of an Intermediate High-Pressure Metamorphism
http://hdl.handle.net/2237/6384
http://hdl.handle.net/2237/638410e507fd-2137-465a-8b1b-12c731bfbf09
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ko1608_abstr.pdf (478.8 kB)
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ko1608.pdf (3.1 MB)
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Item type | 学位論文 / Thesis or Dissertation(1) | |||||
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公開日 | 2006-05-30 | |||||
タイトル | ||||||
タイトル | Petrology of Pelitic Schists in the Oligoclase-Biotite Zone of the Sanbagawa Metamorphic Terrain,Japan: Phase Equilibria in High-Grade Zone of an Intermediate High-Pressure Metamorphism | |||||
言語 | en | |||||
その他のタイトル | ||||||
その他のタイトル | 三波川変成帯の灰曹長石-黒雲母帯における泥質片岩の岩石学的研究 -とくに高圧中間群変成作用の高温部における相平衡の解析- | |||||
言語 | ja | |||||
著者 |
Enami, Masaki
× Enami, Masaki× 榎並, 正樹 |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The oligoclase-biotite zone of the Bessi area, central Shikoku is characterized by sodic plagioclase-bearing assemblages in pelitickl schists, and resents the highest-grade zone of the Sanbagawa metamorphic terrain. Mineral assemblages of pelitic schists in this zone, all with quartz, sodic plagioclase, muscovite and clinozoisite (or zoisite), are garnet + biotite + chlorite + paragonite, garnet + biotite + hornblende +chlorite, and partial assemblages of the above types. Correlations between mineral compositions, mineral assemblages and mineral stability date assuming suggest that metamorphic conditions of this zone are about 610 ± 25°C and 10 ±1Kb. Based upon the comparative study of mineralogy and chemistry of pelitic schists in the oligoclase-biotite zone with those in New Caledonia omphacite zone as a typical high-pressure type and with those in upper staurolite zone as medium-pressure type, progressive as semblages within these zones can be related by such reactions as: omphacite zone garnet + glaucophane + omphacite + muscovite = oligoclase-biotite zone biotite + hornblende + plagioclase + quartz + H2O oligoclase-biotite zone garnet + hornblende + paragonite + muscovite = upper staurolite zone staurolite + biotite + plagioclase + quartz +H2O dP/dT values of these equations calculated using natural compositions are 3-6 and 16-19, respectivel, and their gradients are gentle. This implies that the contrasts of mineral parageneses in pelitic schists related by the aboveequations result mainly from the difference in pressure during progressive metamorphism. A combination of mineral assemblages observed in the Sanbagawa oligoclase-biotite zone represents a characteristic mineral paragenesis of pelitic schists in the high-grade part of an intermediate high-pressure metamorphism. | |||||
言語 | en | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 名古屋大学博士学位論文 学位の種類:理学博士 (課程) 学位授与年月日:昭和58年11月4日 | |||||
言語 | ja | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||
資源タイプ | doctoral thesis | |||||
書誌情報 |
発行日 1983-11-04 |
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学位名 | ||||||
言語 | ja | |||||
学位名 | 理学博士 | |||||
学位授与機関 | ||||||
学位授与機関識別子Scheme | kakenhi | |||||
学位授与機関識別子 | 13901 | |||||
言語 | ja | |||||
学位授与機関名 | 名古屋大学 | |||||
言語 | en | |||||
学位授与機関名 | Nagoya University | |||||
学位授与年度 | ||||||
値 | 1983 | |||||
学位授与年月日 | ||||||
学位授与年月日 | 1983-11-04 | |||||
学位授与番号 | ||||||
学位授与番号 | 甲第1608号 | |||||
フォーマット | ||||||
値 | application/pdf | |||||
フォーマット | ||||||
値 | application/pdf | |||||
著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/6384 | |||||
識別子タイプ | HDL |