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东天山主要矿床类型、成矿区带划分与成矿远景区优选
TYPES OF MAJOR ORE DEPOSITS,DIVISION OF METALLOGENIC BELTS IN EASTERN TIANSHAN,AND DISCRIMINATIOON OF POTENTIAL PROSPECTS OF CU,AU,NI MINERALIZATION
【摘要】 在分析了东天山铜、金、镍、、铁等主要矿种的矿床类型基础上,将东天山成矿区从北向南分为12个矿化亚带,分别对应于大南湖-头苏泉泥盆纪增生岛弧、小热泉子-梧桐窝子石炭纪弧内盆地、康古尔韧性剪切带、干墩-苦水弧后盆地边缘相、阿齐山-雅满苏早—中石炭世弧后盆地和中天山古陆块6大构造单元.对构造环境、区域成矿规律和地、物、化、遥综合研究后,优选出卡拉塔格等10个成矿远景区,并进行了成矿条件等方面的分析.
【Abstract】 Eastern Tianshan is one of the most important Cu-Ni-Au-Fe metallogenic provinces in China. Focusing on the major tectonic geology and exploration problems, we compiled the latest metallogenic map in 1:1,000,000 scale of Eastern Tianshan Mountains. The paper summarized the major types of Cu, Ni, Au and Fe deposits in Eastern Tianshan. The major copper mineralization types include porphyry type, skarn type,VHMS type and magmatic vein type. The major gold mineralization types include LS- and HS-epithermal type, orogenic type and quartz-vein type. The major iron mineralization type consists of VHMS type, metamorphosed VHMS type, metamorphosed sedimentary type and magmatic V-Ti-Fe type. Twelve metallogenic belts were divided out from north to south which correspond to six tectonic units as Danahu-Tousuquan accretionary arc (S-C1), Xiaorequanzi-Wutongwozi intra-arc basin (C1), Kanggur-Huangshan ductile shear zone ((C3-P1), Kushui-Ganden transitional belt along back-arc basin, Aqishan-Yamansu back-arc basin (C1) and Middle-Tianshan old massif respectively. At last 10 optimum prospects and exploration directions were further suggested. One of the most optimum target, Kalatage occurrence has been proved to be a Cu-Au deposit with large-scale potential.
【Key words】 Types; metallogenic environments; ore belt division; exploration target; prospect direction; eastern Tianshan;
- 【文献出处】 新疆地质 ,Xinjiang Geology , 编辑部邮箱 ,2003年02期
- 【分类号】P612
- 【被引频次】129
- 【下载频次】1160