摘要
贵州瓮安已探明磷矿资源储量 36.5 亿吨,素有"亚洲磷仓"的美誉.随着新一轮找矿突破战略行动实施,急需对瓮安地区成磷条件与找矿远景区进行预测,指导磷矿找矿工作.通过对瓮安地区陡山沱期磷块岩沉积特征、沉积层序、成矿模式和成磷古地理分析,提出中坪、建中、南寨、平定营、瓮安深部、岚关、草塘等7 个磷矿找矿远景区.
Abstract
Weng'an,located in Guizhou Province,is an important mineralization area where proven phosphate rock resource reserves are 3.65 billion tons during the Doushantuo period.With the implementation of a new round of prospecting breakthrough strategic actions,it is urgent to predict the phosphorus formation conditions and prospecting prospects in Weng'an area and guide the phosphate prospecting work.On the basis of comprehensive analysis of regional geology,regional distribution of phosphate bearing rock series,lithofacies paleogeography,and ocean current direction,it is proposed that Weng'an compound anticlines are favorable for phosphorus mineralization.Therefore,seven phosphorus prediction areas have been delineated,including Zhongping,Jianzhong,Nanzhai,Pingdingying,deep part of Weng'an syncline,Languan and Caotang areas,which may contain medium to large and ultra large phosphorus deposits.