Petrology, Geochemistry and Zircon U-Pb Chronology of Gabbro in Darbut Ophiolitic Mélange, Xinjiang
详细信息
- 责任者：Chen Bo (Key Laboratory of Orogenic Belts and Crustal Evolution ; Ministry of Education ; School of Earth and Space Sciences ; Peking University ; Beijing 100871 ; China) ; Zhu Yongfeng
- 刊名：Acta Petrologica Sinica
- 出版年：2011
- 卷期：27(6)
- 关键词：变辉长岩 ; metagabbro ; 元素地球化学 ; elements geochemistry ; 铀—铅计时 ; U-Pb dating ; 新疆 ; Xinjiang
- 页码：p.1746-1758
- 图表：8 illus., 3 tables, 24 refs.
- 分类号：0802
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
Gabbro, gabbroporphyrite and hornblende gabbro, occurring in spinel serpentinite as irregular blocks in the Darbut ophiolitic mélange, West Jungar (North Xinjiang, Northwest China), are studied in this paper. Based on the calculation using Darbut spinel-lherzolite as mantle source, gabbro was formed by the melt fractional crystallization, while gabbroporphyrite and hornblende gabbro were formed via crystallization of the remnant melts.