摘要
通过对翁泉沟铁硼矿地质矿产特征及所处区域、矿区地球化学特征所作的分析及总结,初步建成了翁泉沟海相火山沉积变质型铁硼矿的地质-地球化学找矿模型:古元古界辽河群里尔峪组为层位稳定且变质程度较高的含硼建造,岩浆活动强烈且构造形迹比较复杂;翁泉沟铁硼矿及其相似地质背景发育区主要出现B、MgO、Fe2O3的异常组合,各个单元素高值区内的浓集中心显著,但各异常元素间的组分分带性不明显;在矿床周边地区B和Fe2O3异常以较好套合的组合出现作为本区寻找该类矿床的地球化学异常找矿标志,相对而言B和MgO伴生出现的情况相对要少.矿床地质-地球化学找矿模型的建立,可以为寻找同类型矿床而开展的预测远景区圈定、找矿靶区挑选、资源量估算等工作提供依据.
With analysis and sum-up of the regional geology, geochemistry and mineral resources of the Wengquangou ironboron deposit in Liaoning province, the geological-geochemical prospecting model for the marine volcanic-sedimentary metamorphic type of deposit is preliminarily established as follows： The Lieryu Formation, Liaohe Group of Paleoproterozoic Erathem is the boron-bearing formation with a stable horizon, high metamorphic degree, intensive magmatic activities and complicated structures. The anomaly assemblage of B, MgO and Fe2O3appears in the orefield and areas with similar geological background. Each element has significant concentration centers in the high-value areas, but the zonation between difference elements is not so clear. The anomalies of B and Fe2O3around the deposit are well coincided, which is the geochemical prospecting indicator in the area. However, the association of B and MgO is relatively unfamiliar. The establishment of the geological-geochemical prospecting model provides an important basis for the delineation of prospective areas, choice of targets and estimation of resources of the deposits of the same type.
出处
《地质与资源》
CAS
2014年第3期256-260,共5页
Geology and Resources
基金
国土资源部地质大调查项目"全国矿产资源潜力评价"(1212011121004)资助
关键词
翁泉沟铁硼矿
海相火山沉积变质型
地球化学特征
找矿模型
辽宁省
Wengquangou iron-boron deposit
marine volcanic-sedimentary metamorphic type
geochemical characteristics
metallogenic model
Liaoning Province
