陕西秦岭泥盆系地质成矿环境及找矿

陕西秦岭泥盆系是我国铁、铅、锌、银、金、汞、锑等金属的重要矿产地。泥盆系有利含矿岩相具有东西分区、南北分带的空间展布特征。多期次不同性质断裂呈网络状分布，各种岩浆岩广泛发育。泥盆纪盆地都是伸展性基地，有良好的成矿岩相古地理环境和有利沉积岩相区。本区成矿具多期多元特征，后泥盆纪构造张裂、挤压、脆韧性变形对成矿起了重要作用。在综合分析地质成矿环境的基础上提出了本区进一步找矿方向。

METALLOGENIC SETTINGS OF DEVONIAN IN QINLING,SHAANXI PROVINCE AND THE PROSPECT FOR PROSPECTING

Devonian in Qinling, Shaanxi Province now has become the main mineral resource base of iron, lead, zinc, silver, gold, mercury and antimony in China. The favourable ore-bearing facies of Devonian features subdivision of areas in the east-west direction and subdivision of belts in north-south direction. Fractures of multi-period and different nature are distributed in the network pattern. Various magmatic rocks are also distributed widely. The Devonian basin belongs to extensional basin with the favourable lithofacial-palaeogeographic environments and favourable sedimentary facies for mineralization characterized by multi-periods and multi-sources. The post-Devonian structures play an important role in metallization. Based on the comprehensive analysis, the prospect for prospecting is pointed out.