化工矿产地质2019，Vol.41Issue(3)：144-149,6.
新疆尉犁县兴地Ⅲ号岩体岩石地球化学特征及岩石成因
Geochemical characteristics and petrogenesis of Xingdi III magmatic rock in Yuli County, Xinjiang, China
鞠林雪 1王永茂 2刘军省 1王春光 1邓宇飞3
作者信息
- 1. 中化地质矿山总局地质研究院,北京 100101
- 2. 呼伦贝尔山金矿业有限公司,内蒙古 呼伦贝尔 022357
- 3. 中化地质矿山总局地质研究院,北京 100101
- 折叠
摘要
Abstract
Xingdi III magmatic body is located in Kuruktag area in the northeastern margin of Tarim Basin, with an exposed area of about 0.5km2. The rock types are mainly olivine pyroxenite, websterite, monopyroxenite, gabbro and so on, Which belongs to tholeiite series. The gabbro and olivine have low REE content (∑REE=39.58×10-6~149.39×10-6), enriched light rare earth elements [(La/Yb)N=3.83~9.91] and large ion lithophile elements (Rb, Ba, K, Sr), depleted high field strength elements (Nb, Ta, P, Ti). δEushows weak positive anomalies. Petrographic and geochemical characteristics indicate that olivine crystallization occurs during magma migration. The primary magma is magnesia-rich tholeiite, and the magma is assimilated with crustal materials during its ascent. There are many similarities between Xingdi III magmatic body and Jinchuan magmatic body, and copper-nickel mineralization has been found on the surface of Xingdi III magmatic body. There are good prospecting prospects.关键词
尉犁县兴地/Ⅲ号岩体/地球化学/岩石成因Key words
Xingdi in Yuli County/III magmatic body /Geochemistry/Petrogenesis分类
天文与地球科学引用本文复制引用
鞠林雪,王永茂,刘军省,王春光,邓宇飞..新疆尉犁县兴地Ⅲ号岩体岩石地球化学特征及岩石成因[J].化工矿产地质,2019,41(3):144-149,6.
