江苏省金红石矿成矿地质特征、开发利用现状与成矿远景

Metallogenic geological characteristics,development and utilization status and metallogenic prospect of rutile ore in Jiangsu Province

金红石是优质钛的主要来源,也是江苏省的优势矿产资源。江苏省金红石矿集中分布于苏北超高压变质带,已查明的金红石矿品位高、品质好。金红石主要产于榴辉岩体中,岩体主要由石榴子石、绿辉石和金红石组成,榴辉岩体即矿体,综合价值高。江苏省已发现的榴辉岩体可达2000余个,但勘查程度低,仅对其中8个榴辉岩体进行过勘查。已勘查的岩体由于受市场、经济、技术等因素制约,往往以岩体中的某一矿种为主,综合勘查、评价程度低,影响了资源的综合利用。因此,全面总结了金红石的区域成矿地质条件、已查明矿产资源状况、开发利用现状,分析了当前资源的可利用状况和资源保障程度。分析认为江苏省产于榴辉岩中的金红石矿成矿条件优越,资源潜力巨大,可利用性好。采用地质体含矿率法评价了江苏省规模较大的209个榴辉岩体中金红石及其共伴生的石榴子石、绿辉石的资源潜力。江苏省预计有30个榴辉岩体中金红石矿有望达大型规模,可为全省乃至全国新兴产业基地建设提供资源保障。此外,针对存在的问题提出了进一步勘查开发利用建议。

Rutile is one of the superior mineral resources in Jiangsu Province,which is the main source of titanium.The titanium ores are concentrated in the ultrahigh pressure metamorphic belt in Northern Jiangsu,that the rutile has better quality and great resource potential.Rutile originated in the eclogite which is composed of garnet,pyroxene,and rutile,the eclogite is also the ore body of rutile which as high comprehensive value.In Jiangsu Province,there are about 2000 eclogite rocks,but the exploration on them is low,just that eight eclogite rocks are surveyed.Because of the restriction of market,economy and technology,the rocks are usually explored in a certain kind of mineral which has a negative influence on the use of rutile ore.For this reason,summarizes the regional metallogenic geological conditions,the situation of identifies mineral resources,and the current status of development and utilization.And also takes analysis about the degree of resource security,has a conclusion that the rutile in eclogite in Jiangsu Province has favorable metallogenic conditions and good availability use.Uses the method of geological body ore rate to evaluate the rutile in 209 eclogite rocks,as well as the associated garnet and pyroxene.Takes a forecast that there are 30 large deposits of rutile which is abundant in eclogtie rocks and these rocks can guarantee the construction of the national emerging industry.In view of the existing problems,some suggestions are put forward for further exploration,exploitation and utilization.