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Discovery of eclogite at northern margin of Qaidam Basin, NW China

Jingsui, Yang Yang, Zhiqin, Xu Xu, Haibing, Li -, Cailai, Wu, Junwen, Cui, Jianxin, Zhang, Wen, Chen

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Abstract

Eclogite 首先在这研究在 Qaidam 盆的北边缘被发现。它在中间的片麻岩顺序作为豆荚发生到上面原生地变老并且主要由石榴石, omphacite, phengite 和金红石组成。石榴石包含 44% 鈥 ?2% almandine, 15% 鈥 ?3% grossular 和 12%0% 镁铝榴石分子,和 omphacites 包含的鈥 ?40% 鈥 ?6% 硬玉的一种。适用的 garnet-clinopyroxene 计温和硬玉的一种 geobarometry, eclogite 外形变态的山峰条件发生了在大约(722 卤 1 23 )掳 C 并且在压力直到 c。22 脳 108 Pa。

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What this paper is about

Eclogite 首先在这研究在 Qaidam 盆的北边缘被发现。它在中间的片麻岩顺序作为豆荚发生到上面原生地变老并且主要由石榴石, omphacite, phengite 和金红石组成。石榴石包含 44% 鈥 ?2% almandine, 15% 鈥 ?3% grossular 和 12%0% 镁铝榴石分子,和 omphacites 包含的鈥 ?40% 鈥 ?6% 硬玉的一种。适用的 garnet-clinopyroxene 计温和硬玉的一种 geobarometry, eclogite 外形变态的山峰条件发生了在大约(722 卤 1 23 )掳 C 并且在压力直到 c。22 脳 108 Pa。

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Available abstract

Eclogite 首先在这研究在 Qaidam 盆的北边缘被发现。它在中间的片麻岩顺序作为豆荚发生到上面原生地变老并且主要由石榴石, omphacite, phengite 和金红石组成。石榴石包含 44% 鈥 ?2% almandine, 15% 鈥 ?3% grossular 和 12%0% 镁铝榴石分子,和 omphacites 包含的鈥 ?40% 鈥 ?6% 硬玉的一种。适用的 garnet-clinopyroxene 计温和硬玉的一种 geobarometry, eclogite 外形变态的山峰条件发生了在大约(722 卤 1 23 )掳 C 并且在压力直到 c。22 脳 108 Pa。

Key concepts: Eclogite, Omphacite, Almandine, Grossular, Phengite, Geology, Geochemistry, Pyrope

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