| Eastern Junggar Kalamaili metallogenic belt of Xinjiang is an important part ofthe Central Asian Orogenic Belt, which is located in the meet part of the platesbetween Siberia and Kazakhstan. In the level of metallogenic belt, It belonging toKalamaili-Moqinwula metallogenic belt (â…£ grade), It has a gold mineralization incondition, huge resource potential, So It is one of an important gold-polymetallicmetallogenic belt in our country.In this paper, Kalamaili mineralization subzones and Kubusu-Koop twometallogenic subzone for the study, according to genesis classification, the study areais divided into four types of gold: gold continental volcanic type to Jinshan gold Mineas a representative; sectional pieces altered rock type gold to gold Kalamaili â… number of representatives; epithermal hydrothermal alteration type gold to Kubusugold as representatives; toughness shear Zone gold: gold is gold springsrepresentatives. Expand the analysis of typical deposit to deposit geology, structuralgeology, geochemistry, isotope geochemistry, petrology, geochronology, etc., based onthe geological characteristics of the deposit through, geochemical characteristics,geochemical characteristics and other aspects of the system study to examine thegenesis, the establishment metallogenic model, analyze ore prospects. On this basis,the research metallogenic regularity and metallogenic model to carry out the overalllevel of metallogenic belt.Metallogenic regularity study area showed: Early Paleozoic-Late Paleozoictectonic evolution of the formation of the East Junggar basic structural framework forthe formation of gold provides a good geological background; Gold mineralization isclosely associated with the mineralization of the Lower Carboniferous strataNanmingshui group (C1n), water group (C1q)and Bata Ma By Uchiyama group(C1b),Lower Devonian care so that cell libraries are gram sub-group(D1tb), middle Devonianrock group of the North Tower(D2b), Silurian Kubusu group(Skp). K enrichment ratioand coefficient of variation CV showed that: associated with Au and Ag, As, Ti, Biand other elements are enriched with the strong and strong points profiled in oreformation; major ore-forming elements in geological variation with age to: strata Au,Ag, Cu content decreased from the old to the new (Dâ†'J), and Hg, Pb, Sb gradually.Structural aspects of the law:"X" type from the NW-NWW and NE-NEE to conjugateconsisting of fracture control of the overall direction of the gold belt, the secondaryfaults control the exact location of the deposit (points) to form the main fault zone andsecondary fracture pattern of mutual control mine, endogenous metal mineral densityand linear structure is closely related to: raw minerals within the linear structuredenser lots more, whereas endogenous few minerals; volcano, times sedimentary and volcanic activity are closely related with the gold mineralization; Time distribution ofthe deposit is: Kalamaili vast majority of gold mineralization with mineralization agefor early Carboniferous in the late Devonian and Silurian fewer discipline golddeposit; Distribution of space: the endogenous spotty distribution of gold deposits,gold dot was concentrated segments, including gold-intensive, showing veinscrony-like distribution; distribution of space rock and deposits are: rock formed fromthe era, the earliest Huangyangshan series (305Ma)> Kubusunan series (287±2Ma)>Baylor libraries grams series (283±2Ma> tin North porphyry (277±11Ma) series; Itseems from the granite rock band in the evolutionary sequence of calc-alkalinecomposition alkalineâ†'alkaline. In gold and granite genesis of ore belt has beenidentified only Huangyangshan gold, this study suggests that Suji Quan and East SujiQuan gold has closely relationship with Sujiquan granite rock on the genesis;Kalamaili ophiolite belt with gold springs gold and gold on the genesis Nanmingshuirelationship; According to these studies, the establishment of a series of East Junggargold mineralization belt.Regional metallogenic model: the law of the mineralization on the basis of theestablishment of a regional East Junggar gold mineralization model and collisiontheory under three different genetic types of gold mineralization model. |
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