赣西北蒙山矿田地质特征与找矿预测

Geological Characteristics and Prospecting Prediction of Mengshan Copper Polymetallic Ore-Field in Northwest Jiangxi Province

赣西北蒙山矿田是近年来钦杭结合带江西段的一个找矿热点。围绕蒙山岩体分布有较多矽卡岩型非金属、多金属矿床。这些矿床受地层、构造、岩浆岩等共同控制,有较为典型的矽卡岩型矿床分布规律。本文对蒙山矿田的成矿地质条件和成矿规律进行初步探讨,并认为印支期第一次侵入花岗岩体、石炭系船山组白云岩等富Ca、Mg地层、后期构造等成矿有利因素叠加部位是下一步找矿重点。

The Mengshan ore-field in Northwestern Jiangxi Province is a hot spot for prospecting in the Jiangxi section of the Qinhang suture zone in recent years. There are more skarn type nonmetallic and polymetallic deposits around the Monshan rock mass. These deposits are controlled by strata, structure and magmatic rocks, and these have a typical distribution pattern of skarn deposits. In this paper, the ore-forming geological conditions and metallogenic regularity of Mengshan ore-field are discussed, and it is believed that the first phase intrusive granite at Indosinian, the dolomite rich of Ca, Mg in Chuanshan group of Carboniferous and the later-tectonic factor superposition site is the next step to exploration focus.