抄録
Trans Vietnam Orogenic Belt distributed in north to central Vietnam includes various types of metamorphic rocks. Most metamorphic rocks show the Permian-Triassic ages and are characterized by decompressional evolution with various metamorphic thermal gradients (8- 25 °C/km). In contrast, some metamorphic rocks having the Ordovician-Silurian age show isobaric heating prograde stage at low-pressure condition (25-30 °C/km). Granitic rocks also show the Permian-Triassic or Ordovician-Silurian ages. The older granitoids have volcanic arc chemical signature, some of which were metamorphosed at the Permian-Triassic. These results suggest that island arc tectonic setting at the Ordovician-Silurian, where arc magmatism heated the arc crust and caused the low-pressure (with isobaric heating) metamorphism at this period. The Permian-Triassic metamorphic rocks and granitoids were formed by subsequent continental collision and subduction of the Indochina craton together with the past Ordovician-Silurian island arc beneath the South China craton.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 26-32 |
| ページ数 | 7 |
| ジャーナル | Japanese Magazine of Mineralogical and Petrological Sciences |
| 巻 | 45 |
| 発行部数 | 1 |
| DOI | |
| 出版物ステータス | 出版済み - 1 1 2016 |
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All Science Journal Classification (ASJC) codes
- Geochemistry and Petrology
- Economic Geology
これを引用
Variation and evolution of vietnamese metamorphic rocks. / Nakano, Nobuhiko.
：: Japanese Magazine of Mineralogical and Petrological Sciences, 巻 45, 番号 1, 01.01.2016, p. 26-32.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Variation and evolution of vietnamese metamorphic rocks
AU - Nakano, Nobuhiko
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Trans Vietnam Orogenic Belt distributed in north to central Vietnam includes various types of metamorphic rocks. Most metamorphic rocks show the Permian-Triassic ages and are characterized by decompressional evolution with various metamorphic thermal gradients (8- 25 °C/km). In contrast, some metamorphic rocks having the Ordovician-Silurian age show isobaric heating prograde stage at low-pressure condition (25-30 °C/km). Granitic rocks also show the Permian-Triassic or Ordovician-Silurian ages. The older granitoids have volcanic arc chemical signature, some of which were metamorphosed at the Permian-Triassic. These results suggest that island arc tectonic setting at the Ordovician-Silurian, where arc magmatism heated the arc crust and caused the low-pressure (with isobaric heating) metamorphism at this period. The Permian-Triassic metamorphic rocks and granitoids were formed by subsequent continental collision and subduction of the Indochina craton together with the past Ordovician-Silurian island arc beneath the South China craton.
AB - Trans Vietnam Orogenic Belt distributed in north to central Vietnam includes various types of metamorphic rocks. Most metamorphic rocks show the Permian-Triassic ages and are characterized by decompressional evolution with various metamorphic thermal gradients (8- 25 °C/km). In contrast, some metamorphic rocks having the Ordovician-Silurian age show isobaric heating prograde stage at low-pressure condition (25-30 °C/km). Granitic rocks also show the Permian-Triassic or Ordovician-Silurian ages. The older granitoids have volcanic arc chemical signature, some of which were metamorphosed at the Permian-Triassic. These results suggest that island arc tectonic setting at the Ordovician-Silurian, where arc magmatism heated the arc crust and caused the low-pressure (with isobaric heating) metamorphism at this period. The Permian-Triassic metamorphic rocks and granitoids were formed by subsequent continental collision and subduction of the Indochina craton together with the past Ordovician-Silurian island arc beneath the South China craton.
UR - http://www.scopus.com/inward/record.url?scp=85009957977&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85009957977&partnerID=8YFLogxK
U2 - 10.2465/GKK.151215B
DO - 10.2465/GKK.151215B
M3 - Article
AN - SCOPUS:85009957977
VL - 45
SP - 26
EP - 32
JO - Japanese Magazine of Mineralogical and Petrological Sciences
JF - Japanese Magazine of Mineralogical and Petrological Sciences
SN - 1349-7979
IS - 1
ER -