云南羊拉铜矿成因新认识及勘查技术模型

羊拉铜矿主要由里农、路农、江边3个矿段组成.含矿岩系为下泥盆统江边组中段—中上泥盆统里农组上段,产有层状和似层状火山—喷流沉积矿体；印支—燕山早期具岛弧性质的中酸性岩浆侵入,形成矽卡岩型和改造叠加矿体；构造—岩浆演化至燕山早期末形成斑岩和断裂构造中脉状矿体,是一个具有巨大找矿潜力的既受层控,又绕岩体,从岩体穿插至围岩之...

Prospecting technique model and new understanding of the genesis of the Yangla copper deposit in Yunnan

The Yangla copper deposit consists of Linong, Lunong and Jiangbian ore section. The ore-bearing rocks are composed of middle section of Jiangbian formation in lower Devonian -uppe：, part of Linong forma- tion in middle-upper Devonian, bearing stratiform and stratiform-like volcanic-sedimaentary exhalative ore- bodies; Skarn type and superposed transformation orebodies were formed by the intrusion of the Indo - early Yanshanian intermediate-acid intrusive with the nature of the arc magmatic; Formed the porphyry ore bodies and the ore veins in faulted structure at the end of early Yanshanian tectonic - magm~ttic evolution which is a complex sedimentary-skarn-vein type copper deposit inserting into country rocks from intrusives controlled by both stratiform rock and surrounded intrusives, having a great potential for exploration. Stratabound type orebodies were found between Linong and Lunong ore section through exploration and prospeting, combined with the exploration models built on the geophysical and geochemical characteristics of the mine, and remote sensing information and vacancy forecasting.