现代地质2011，Vol.25Issue(4)：703-711,9.
甘肃金川Ⅱ号岩浆硫化物含矿岩体岩浆演化过程探讨
Magmatic Evolution Processes of Segment Ⅱ in the Jinchuan Ore-bearing Intrusion, Gansu Province
摘要
Abstract
The Jinchuan deposit is the largest Ni-Cu sulfide deposit in China. The intrusion is composed mainly of sulfide peridotite, harzburgite, lherzolite and pyroxenite. Samples for segment II of the Jinchuan intrusion, according to the petrographic observations, combined the analysis of geochemical features of major oxides and trace elements, the paper attempts to research the magma differential evolution in magma rising process. The authors consider that the fractional crystallization process of segment II of the Jinchuan intrusion contain the spi-nel-olivine fractional crystallization in the deep magma chamber and pyroxenite and plagioclase crystallization in the shallow magma chamber, and crustal contamination occur in the whole magma rising processes. In addition, the crustal contamination is the major factors of saturated sulfur. The above magma differentiation evolution supports the mineralization model proposed by Tang Zhongli.关键词
金川Ⅱ号岩体/岩浆型铜镍硫化物矿床/分离结晶/同化混染/甘肃Key words
segment II of the Jinchuan intrusion/ magmatic Ni-Cu sulfide deposit/ fractional crystallization/crustal contamination/ Cansu分类
天文与地球科学引用本文复制引用
李士彬,宋谢炎,胡瑞忠,陈列锰..甘肃金川Ⅱ号岩浆硫化物含矿岩体岩浆演化过程探讨[J].现代地质,2011,25(4):703-711,9.基金项目
国家自然科学基金项目(40973038) （40973038）
中国科学院“百人计划”基金项目 （）
中国地质调查局“黔中磷矿资源综合评价与区划”项目(1212011182545). （1212011182545）
