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小甸子银金多金属矿位于辽宁省开原市,是辽宁省有色地质局一〇六队勘查发现的小型矿床,其上下盘围岩均为下元古界辽河群高家峪组斜长角闪岩和混合岩互层带,矿体的形态、产状、规模及品位变化等严格受地层、构造(层间)破碎带、岩浆岩的控制。本文从地层、构造、岩浆岩、围岩蚀变等方面论述矿床的成矿地质特征及找矿标志,为今后辽北地区找矿具有一定的指导意义。
Xiaodianzi silver gold polymetallic ore located in Kaiyuan City, Liaoning Province, is the Liaoning Province Nonferrous Geological Bureau investigation and discovery of 106 small deposits, the upper and lower wall rocks are the Lower Proterozoic Liaohe Group Gao Jiayu group longhorn flash Rock and mixed rock strata, ore body morphology, occurrence, size and grade changes are strictly controlled by strata, structural (interlayer) fractured zone and magmatic rocks. This article deals with the mineralization geological characteristics and ore-prospecting indicators of the strata from the aspects of strata, structure, magmatic rocks and wall rock alteration, which will be of guiding significance for future prospecting in northern Liaoning.