Volcanic Rock Mineral-bearing Features Of Lower Carboniferous Darhalange Mountain Formation In Xijing YiLi Area And Gold,copper Ore Deposit's Mineralization Rule

Volcanic rock mineral-bearing features of Lower CarboniferousDarhalange mountain formation in Xijiang YLi area and gold.copper ore deposit's mineralization ruIeAbstact In this paper,the author collects adequately former researchfu1 fruit to ana1ysesyntheticalIy volcanic rock features and mineral-bearing quality of Lower CarboniferousDarhalange mountain formation in Xijiang area with the field operation of the authorDepositcharacter that Au. Cu are main in volcanic rock is systemically researched.FinaIly mineraIizationru1e of Au and Cu is summarized.Through investigation, the author finds vo1canic rock of Lower Carboniferous Darha1angemountain formation in Xijiang Yili area distributes in Berlukener Mountain north to Yili Basin.Yshengilic-Charbucher Mountain in the middle of Yi1i and at the edge of Nalarty Mountain.It isone of important and advantageous producing formations in this area.VOlcanic rock of Darhalange seriers in Tulas VOIcanic Basin south to Berlukerner Mountainwhich erupts in continental facies environment has drastic volcanic activity and it's rock facieschange greatly.Intermidiate acidity rock and acidity rock are main,and basic rock and intermidiatebasic rock are secondary It appears in the form of lava and effiata,somCtimes havingvolcaniclastic sedimentary rock. Volcanic rock of Darhalange fOrmation in the middle of Yiliwhich erupts in ocean and continental environment varies complicatedly and has differentcomposition. in different areas.which erupts in ocean and continental environment Intermidiateacidity rock is main,and basic rock is secondary. At the bottom is smalI normal holoclasticrock,efflata is in the middle,and at the top is lava.VOlcanic rock of Darhalange fOrmation in Yili basin forms in rift enviroment. Volcanic rockof DarhaIange seriers in Berlukerner Mountain fOrms in s1ack rift ancient continenta1 marginenvironment.In the main al1 are outcome in rift environment.VoIcanic rock of Darhalange seriers abounds with Au. Cu. Pb. Zn. Ag. As. Sb. Mg etcwhich are sulfophile mineralization elements.Every element variation coefficient changesbetween 0.58 and 2. l9 be1ong to differential and strong differentiaI distribution which is typicalcharacter of mineral resource layer.lt is the most advantageous formation searching Au. Cumineral resource.Volcanic rock of Lower Carboniferous DarhaIange mountain formation in Tusuler Basinrelates c1oseIy with gold mineralization.As volcanic rock of DarhaIange seriers in Yiili Basin asis concerned,mineraIization is easy in the south Nalarty Mountain north edge,and Cu shouId bethe most possible mineraIization eIement.Gold mines concentrating most1y in the Tularsu vo1canic basin are supergeneepithermal,which are also divided into adularia-sericite and silicified rock according togeological mineralization stucture condition mineralization features and mineral accretion combination.Mineralization epoch is Variscan metaphase. Mineralization substances s origin is Cd2 which is main mineral resource layer of inhomogeneous gold mine mineralization in this area.Gold mine is controlled strictly by volcanic framework.Adularia-sericite gold mine is formed in the rifling near to vocanic activity center,but silicified rock gold mine is formed in the weak framework strip far to vocanic activity center. Adularia-sericite type relating with gold mineralization is calc-alkaline formation (partly alkaline formation) intermediate acidity volcanic rocks dacitic breccia lava and quartz hungarite porphyrite.Wall rock erosion is mainly silicification.. kaolinization.. pyritization. adularization and sericitization. silicified rock type relates with deposit breccia.. volcanic breccia of Cd2. Wall rock erosion is mainly silicification.. sericitization and arsenopyritization. Adularia-sericite gold mine is geochemical sign is the abnormal section of Au.. Ag.. As.. Sb.. Te.. Se etc low-temperature element combination;silicified rock gold mine geochemical sign is the enrichment of...