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卡拉盖雷火山岩型热液铜金矿床位于新疆西天山那拉提构造带境内西段,赋矿地层为下石炭统大哈拉军山组,含矿岩石主要为玄武质凝灰岩、浅变质岩及隐爆角砾岩。矿体产于隐爆角砾岩筒及构造破碎带裂隙或片理、劈理微裂隙中。硅化、绿泥石化和电气石化是高品位矿石的蚀变标志。岩石地球化学研究表明,区内大哈拉军山组火山岩以钙碱性系列为主,含部分拉斑玄武岩系列,富集LREE和大离子亲石元素(Rb、Ba、Th、K),相对亏损HREE和高场强元素(Nb、Ta、Ti、P),具有大陆火山弧亲缘性。综合伊犁—中天山板块南缘的构造演化特征,认为矿区大哈拉军山组火山岩产于板块俯冲-碰撞后期较成熟的大陆火山弧环境。
The Kalaguile volcanic hydrothermal copper-gold deposit is located in the western section of the Nalati structural zone of the Western Tianshan, Xinjiang. The ore-bearing strata are the Lower Halaju mountain group of the Lower Carboniferous. The ore-bearing rocks are mainly basaltic tuffs, superficial metamorphic rocks and Cryptogenic breccia. Ore body produced in the cryptoexplosive breccia tube and fracture structure or fracture cleavage, cleavage of micro-cracks. Silicification, chlorination and electrification are indicators of alteration of high-grade ores. Petrological and geochemical studies show that the Dahalajunshan Formation volcanic rocks in the area are mainly calc-alkaline series with partial tholeiite series enriched in LREE and LILE (Rb, Ba, Th and K) Loss HREE and high field strength elements (Nb, Ta, Ti, P), with continental volcanic arc affinity. Synthesizing the tectonic evolution of the southern margin of the Yili-Zhong Tianshan plate, it is concluded that the volcanic rocks of the Dahalajunshan Formation in the mining area are produced in the more mature continental volcanic arc environment of the plate subduction-collision later in the plateau.