宁芜盆地卧儿岗铁矿成矿地质特征及找矿方向探讨

[摘 要] 本文在分析研究卧儿岗铁矿成矿地质背景和矿床地质特征的基础上,探讨了宁芜盆地卧儿岗铁矿的控矿因素和找矿方向。卧儿岗铁矿位于宁芜断陷盆地NW 向和NNE 向断裂的交汇部位,矿体主要赋存在浅成、超浅成侵入的辉石闪长玢岩体顶部,严格受岩体制约,认为该矿床属于玢岩型铁矿。指出在卧儿岗铁矿深部仍有较大找矿空间,在宁芜断陷盆地NW 向和NNE 向断裂构造交汇处,并且发育有辉石闪长玢岩的部位是寻找玢岩铁矿的有利部位。

Geological Characteristics and Prospecting Direction of the WoergangIron Ore Deposit in the Nanning-Wuhu Basin

Abstract:This paper researches the ore-controlling factors and prospecting direction of the Woergang iron ore deposit in Nanning-Wuhu basin, through studies of its metallogenic background and geological characteristics. The Woergang iron ore deposit is located in the intersection part of the NW- and NNE-trending faults in the Nanning-Wuhu rift basin. The ore bodies are mainly hosted and restricted by the shallow and ultra-shallow augite diorite porphyrite rock bodies. This may suggest that the Woergang iron ore deposit belongs to porphyrite iron ore deposit. It is inferred that there is prospecting potential in the deep part of the Woergang iron ore deposit, and the intersection part of the NW- and NNE-trending faults, where augite diorite porphyrite rock body is developed, is a favorable position for prospecting porphyrite iron ore deposit.