中国钼矿主要矿集区及其资源潜力探讨

A discussion on the major molybdenum ore concentration areas in China and their resource potential

钼矿是中国的优势矿种之一,在全国范围内均有分布。矿床成因类型以斑岩型、矽卡岩型和热液脉型为主,成矿时代以中生代和新生代为主。新世纪,随着科技进步,钼的应用领域逐渐扩大,带动了中国钼矿的勘探和开采工作,取得了一系列找矿新突破,特别是在非传统的钼矿产区发现了许多大型和超大型钼矿,使中国钼矿资源量有了大的突破,基本上改变了过去"南钨北钼"的原有格局。本文在广泛搜集资料的基础上,总结了中国钼矿资源特点,并综合考虑岩浆、构造、地层、流体、成矿时代等因素,初步将中国钼矿划分为17个大的矿床集中区(矿集区),简单介绍了矿集区的基本地质特征和成矿特征,给出了几个最重要矿集区的区域成矿模式,同时根据已有资料和找矿新进展,对主要钼矿矿集区进行了资源潜力分析,并对中国钼矿找矿工作提出了建议。

Distributed extensively in the whole country,molybdenite is one of the dominant minerals in China.Mo deposits are mainly of porphyry type,skarn type and hydrothermal vein type in genesis.Metallogenic epochs are mostly concentrated in Mesozoic and Cenozoic.In recent years,with the development of technology,the applied area of molybdenum has been gradually expanded,which has stimulated the exploration and exploitation work of molybdenum minerals and made a series of breakthroughs in the exploration and expansion of molybdenum resources.In non-traditional molybdenum ore areas,many large or giant molybdenum deposits were found,which has fundamentally changed the original pattern of＂W in South,Mo in North＂.In this paper,based on extensive data collection,the authors summarized the characteristics of molybdenum ore resources in China and preliminary divided molybdenum ore deposits in China into 17 large ore concentration areas in consideration of magma,tectonic settings,stratigraphy,fluids,metallogenic ages and other factors.The main geological characteristics and metallogenic characteristics of molybdenum ore concentration areas were described.On such a basis,regional metallogenic models for four most important molybdenum ore concentration areas were established.Meanwhile,based on data and molybdenum ore-searching achievements,this paper makes a comment on the resource potential of major molybdenum ore concentration areas and gives suggestions for future exploration work.