The Geochemical Characteristics and Petrogenesis of the Chahansala Intrusion in Western Tianshan Area
详细信息
- 责任者：Du Yudiao (State Key Laboratory of Geological Processes and Mineral Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Lü Pengrui
- 刊名：Contributions to Geology and Mineral Resources Research
- 出版年：2011
- 卷期：26(2)
- 关键词：侵入体 ; intrusions ; 天山 ; Tianshan Mountains ; 新疆 ; Xinjiang
- 页码：p.131-142
- 图表：12 illus., 4 tables, 37 refs.
- 分类号：0801
- issnNo：ISSN1001-1412
- isbnNo：CN12-1131/P
摘要
The Chahansala intrusion at Chahansala in northern slope of Boluokenu Mountain of western Tianshan area lies in the Yilianhabierga gold metallogenic belt.It is mainly composed of gabbro and diorite associated with gold mineralization and characterized by metaluminous calc-alkaline rock series, slight decrease of MgO, CaO, TFeO and TiO2 with the increase of SiO2, no apparent correlations of Na2O, K2O, P2O5 and Al2O3 with SiO2, relative depletion of Th, Nb, Ta and Zr and U, Ba and Pb enrichment, significant Nb negative anomaly and high Pb positive anomaly, relative low ∑REE, LREE enrichment and HREE depletion, weak Eu negative anomaly, and no apparent LREE and HREE fractionation.