| That study area Tongchanggou Mo-Cu deposit in Shangri-La County Yunnan Province, Tectonic is locaed in the study area in the southeast of the Qinghai-tibet plateau "Sanjiang area" wasp waist belt and Gondwana plate with the Eurasian plate junction, tethys- east edge of the Himalayan tectonic domain. Region is located in the Yangtze plate and Yidun island arc, Songpan transition part of the plot, is part of the ganzi- litang suture zone. That specific location Zhongdian arc is in the southernmost of Yidun island arc. The study area of the Permian, Triassic is well developed, the mine stratigraphic mainly distribution is Emeishan basalt Group(P3e), Beiya group(T2b) and a small amount of Quaternary Pleistocene(Qp), Holocene(Qh). The study area belong to Yangtze stratigraphic zones Lijiang- Jinping district Mingyin stratigraphic district, Zhongzan- Shigu formation distric, which is an important seam Triassic Beiya group. Mine main faults F1 belongs to Hyderabad- Tongchang- Ma Pass section of fracture, this fracture along the anticlinal axis by, and controlled the distribution within the magmatic rocks and porphyry Mo ore occurrence; the other main fracture of F2 fracture controlled the occurrence mine skarn Cu-Mo mine; there are four secondary faults in the mining area, near the main E-W, NW- SE trending. Magmatic rocks in the study area are mainly basalt, distributed in the Emeishan basalt group(P3e).Intrusive rocks are mainly distributed along the copper plant F1 fracture nearby, scattered outcrops small rock strains,dykes, apophyses. Lithology is mainly Granite diorite porphyry, Fai green porphyrite, times for Quartz diorite porphyrite. Which Granite diorite porphyry and Quartz diorite porphyrite is closely related to Mo-Cu deposit.Within the mining area KT1 mainly occurs in the skarn ore bodies, ore deposit industrial type is skarn type, genetic types is contact metasomatism Cu-Mo deposit. KT11 orebody mainly occurs in granite diorite porphyry and it’s near the contact zone of basalt, the type of porphyry deposit industry, genetic types of hydrothermal type Mo deposit. Mining useful metal elements is given priority to with molybdenum, copper, associated with a small amount of silver, the scale of deposit for medium-sized Mo-Cu mine. According to the contrast with other area Yanshan htectonic epoch deposit, can summary preliminary metallogenic regularity of such deposits.According to mining geophysics, geochemistry achievements speculate, M1 strength of the magnetic anomaly is not high, small, but good mineralization geological conditions, and there is 1:50,000 geochemical Cu anomaly, with copper skarn find meaning; M2 due to the magnetic anomalies of a certain scale and 1:50,000 geochemical Cu anomaly has reached level content, its west side T2b1 in fault contact with P3 e,good mineralization conditions, it is worth further geological verification;M7 magnetic anomalies in the northwest has a 1:50,000 geochemical Cu anomaly reached an abnormal content,M7 has further prospecting significance, if magnetic anomalies along the Northeast to the confluence with the F1 fracture boring tunnel, will be the opportunity to meet mine. Structure in the mine, rich in constructing concentration areas might form deep mineral deposits; The region of magmatic rocks closely associated with mineralization, has been found that the KT11 is located in central Chinese prickly ash flat granite diorite porphyry intrusion and basalt contact part of the emeishan basalt group. Beiya group of limestone near flower diorite porphyry with Silicon card lithification belt, in view of the characteristics of skarn type deposit, may continue to mineralization in the region. Combined mining engineering verification results are known, metallogenic regularity and other factors, the paper positioned predicts the ore bodies. |
PDF Full Text Request