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东天山西滩金矿床是近年发现的重要金矿床。它具有较长的成岩成矿过程,石炭纪岛弧火山作用形成了矿体的围岩———安山岩(330 Ma) ,随后,特别是在碰撞造山期岩浆活动形成了英云闪长岩(293 Ma)、二长花岗斑岩(281 Ma) 、钾长花岗斑岩(266 Ma) 、流纹斑岩(256 Ma) 等。这种幕式发生的热动力,也导致288 ~285 Ma 青盘岩化及L1 号金矿脉276 Ma、L2 号含金贫矿脉261 Ma、热液爆破角砾岩244 Ma、L3 号金矿脉等成矿( 及相关热液活动) 演化过程( 大约持续44 Ma) 。工业金矿体是成矿流体热动力地质构造三者的最佳耦合。矿床属造山期低温浅成热液矿床。
The East Tianshan Xitan gold deposit is an important gold deposit discovered in recent years. It has a long process of diagenesis and mineralization. The volcanism of the Carboniferous island formed the surrounding rock (330 Ma) of the ore body. Later, the magmatic activity, especially during the collision orogeny, formed the dioritic ( 293 Ma), long-granite porphyry (281 Ma), potassium-rich granite porphyry (266 Ma) and rhyolite porphyry (256 Ma). The thermodynamic force of this event also resulted in the formation of the Qiangtang lithosphere from 288-285 Ma, the 276 Ma gold deposit L1, the 261 Ma gold deposit L2 L2, the 244 Ma hydrothermal breccia breccia, the L3 gold deposit Mineralization (and related hydrothermal activity) evolution (lasted for approximately 44 Ma). Industrial gold ore body is the best coupling of ore-forming fluid thermodynamic geological structure. The ore deposit belongs to the low-temperature epithermal deposits in the orogenic period.