模型找矿在相山矿田山南矿区接替资源勘查中的应用

Application of Model for Exploration in Substitute Resources Prospecting in Shannan Deposit District of Xiangshan Orefield

山南矿区横涧、岗上英、石马山矿床历经40余年开采,资源严重危机,急需开展接替资源勘查。在深化矿区铀成矿地质特征、关键成矿要素及铀矿化定位规律认识的基础上,认为矿区内三个铀矿床均可归属为斑岩型铀矿床,据此明确了接替资源勘查找矿目标及技术思路。基于相似类比和地质异常理论,通过攻深找盲物化探技术,提取了各类铀成矿信息,对矿区深部及近外围隐伏矿体进行了预测,并进而建立了综合信息预测模型。实践证明,山南矿区应用模型找矿,实现了矿区接替资源的快速突破。

Since Hengjian,Gangshangying and Shimashan deposits in Shannan deposit district have been mined for over 40 years,it is serious crisis in resources and is imperative to perform exploration of substitute resources.On the basis of deep consideration of uranium metallogenic geological characteristics,key metallogenic factors and regularities of uranium mineralization emplacement,the three deposits in the deposit district are classified into porphyry type deposit,on which exploration targets and technique solutions for substitute resources exploration are definitely determined.Under the guidance of analogy and geological anomaly theory,various information of uranium metallogenesis is extracted through geophysical and geochemical technique for exploration of deep and conceded orebodies.The deep and peripheral orebodies of the deposit district are prognosed,then prognosis model of integrating information is set up.The practice has proved that breakthrough of substitute resources has been made in Shannan deposit district application model exploration.