| 东天山康古尔塔格金矿带成矿条件分析 |
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| 引用本文： | 姬金生,杨兴科,苏生瑞.东天山康古尔塔格金矿带成矿条件分析[J].地质找矿论丛,1994,9(4):49-56. |
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| 作者姓名： | 姬金生 杨兴科 苏生瑞 |
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| 作者单位： | 西安地质学院 |
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| 摘 要： |
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| 关 键 词： | 金矿床 成矿条件 剪切带 |
| 收稿时间： | 1994/4/15 0:00:00 |
| 修稿时间： | 1994/6/25 0:00:00 |
ANALYSIS OF THE METALLOGENETIC CONDITIONS AND DIVISION OF THE MINERALIZING SUBBEELT IN THE REGION OF KANGUERTAGE OF EASTEN TIANSHAN |
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| Ji Jinsheng,Yang Xingke and Su Shengrui.ANALYSIS OF THE METALLOGENETIC CONDITIONS AND DIVISION OF THE MINERALIZING SUBBEELT IN THE REGION OF KANGUERTAGE OF EASTEN TIANSHAN[J].Contributions to Geology and Mineral Resources Research,1994,9(4):49-56. |
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| Authors: | Ji Jinsheng Yang Xingke and Su Shengrui |
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| Institution: | Xi''an College of Geology;Xi''an College of Geology;Xi''an College of Geology |
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| Abstract: | Kangguertage gold belt of eastern Tianshan is situated at the junction of Tarimu Plate and Zhungar Plate,and is a part of an island arc and trough system consisting of Aqishan-Yamansu Island Arc and Huangshan-Qiugamintashi Sea Trough.Based on having found several big and middle gold deposits and much scientitic research in the gold belt,the authors analyses tectonics,ductile shear zones,strata,magmatic activity,geophysical and geochemical condition etc.Ore bodies are usually hosted in volcanic rocks of intermediate to acid composition.There are a series of intrusions of the similar composition along the belt.The most important thing is that the gold belt is situated at the island arc and trough system,and that gold deposit are coutrolledy by the ductile shear zones,but ore bodies are strictly controlled by ductile to brittle fracture of the d.s.z.I-type granite,whose U-Pb age is 236Ma and Rb-Sr isochron age is 248Ma,provided thermal energy and partial ore substances for flow of ore solution.Gold geochemical anomalies are mainly concentrated in the north part of the island arc,which is exactly situated at the elevation of the Moho face.So the gold mineralization belt can be divided into three metallogenic subbelts from south to north:(1)north edge gold-copper metallogenic subbelt of Aqishan-Yamansu Island Arc;(2)Turbidite-type copper-gold metallogenic subbelt of Huangshan-Qiugemintashi Sea Trough;and(3)Skarn type wollastonite ore-forming subbelt of kangguertage fracture zone. |
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