WANG Lei1, FANG Wei-xuan1, JIA Run-xin1, LU Jia2, YE Lei1
(1. China Non-ferrous Metals Resource Geological Survey, Beijing 100012, China;
2. Kunming University of Science and Technology, Kunming 650000,China )
Abstract: Through typical prospecting line and gallery construct the petro-graphic mapping and phase body anatomy work, sedimentary facies types and the ore phase structure and mineralization were studied. Results suggest that sedimentary facies are divided into alluvial fan facies, middle-fan subphase of arid fan, middle-fan subphase of humid fan, lake swamp facies, lakeshore facies, shallow lake facies-half shallow lake facies,and braided river delta front subfacies. Kuzigongsu group is mid-fan subfacies of superposition compound fan which is the arid fan±residual mountain lake facies (rump lake) wetland fan. The storage ore phase of Sareke copper deposit is purple and ash black iron conglomerate category in the mid-fan subfacies of superposition compound fan. The sedimentary micro facies types are divided into channel microfacies, sheet flow microfacies, superimposed fan microfacies, large wash surface micro facies, sieve deposition microfacies, and mudslides microfacies. Parts of the cataclastic lithification by the cutting layer fracture- interlaminar slip structure and asphalt class basin-fluid superposition transform are obvious enrichment parts of the ore bodies, showing the structure- lithology- faciesmulti-coupled characteristics.
Keywords: copper polymetallic deposit; types of microfacies; cataclastic lithification phase; storage ore phase structure
E-mail: 569026971@qq.com
ACTA MINERALOGICA SINICA Vol. 37, No. 5, 2017, Page 608-616
