华北地区磷矿资源特征及潜力分析  

Resources characteristics of phosphate deposits and potential analysis in North China

作　　者：唐文龙 李俊建[1,2] 侯占国 宋立军 彭翼 张彤[6] 倪振平[7] TANG Wen-long;LI Jun-jian;HOU Zhan-guo;SONG Li-jun;PENG Yi;ZHANG Tong;NI Zhen-ping(Tianjin Center,China Geology Survey,Tianjin 300170,China;North China Center for Geoscience Innovation,Tianjin 300170,China;Shanxi Institute of Geological Survey,Taiyuan 030006,China;Hebei Institute of Geological Survey,Shijiazhuang 050081,China;Henan Institute of Geological Survey,Zhengzhou 450007,China;Inner Mongolia Institute of Geological Survey,Hohhot 010020,China;Shandong Institute of Geological Survey,Jinan 250013,China)

机构地区：[1]中国地质调查局天津地质调查中心,天津300170 [2]华北地质科技创新中心,天津300170 [3]山西省地质调查院,太原030006 [4]河北省地质调查院,石家庄050081 [5]河南省地质调查院,郑州450007 [6]内蒙古自治区地质调查院,呼和浩特010020 [7]山东省地质调查院,济南250013

出　　处：《华北地质》2021年第3期33-40,共8页North China Geology

基　　金：中国地质调查局项目(DD20190379-31、1212011121029、200110200038);国家重点研发计划“深地资源勘查开采”重点专项课题(2016YFC0600107、2018YFC0603805-1)。

摘　　要：华北地区磷矿资源丰富,但近年来探明储量持续下降,加强磷矿资源勘查迫在眉睫。本文在对工作区161处磷矿床(点)资料系统梳理的基础上,总结了区内磷矿床成因类型,并划分3个矿产预测类型5种预测方法;对不同类型磷矿床成矿特征、空间赋存规律进行了总结,并探讨了物质来源,认为华北地区沉积型和沉积变质型磷矿床物质来源于古陆物质的长期风化和海洋生物作用;岩浆型磷矿床物质来源于偏碱性、基性及超基性岩。沉积型磷矿主要形成于震旦纪、寒武世第二期;中元古代为变质型磷矿主成矿期,岩浆型磷矿成矿时代集中于中元古代、印支期和燕山期。全区圈定磷矿最小预测区14处,对其中6处重要预测并进行了资源潜力分析。Phosphorite resources are abundant in North China and their exploration become very important due to Proven reserves decreased continuously.Based on the data of 161 phosphorous ore deposits and ore occurrences,we summarized the phosphorus deposits metallogenic types and divided into 3 prediction types and 5 prediction methods.As well,the character of mineralized and the regularities of space occurrence on the main ore types and geological genesis of the phosphorous deposits have been summarized.We thought sedimentary and sedimentary metamorphic phosphorous deposits were derived from the long-term weathering of ancient land materials and the action of Marine organisms and the magmatic phosphate deposits derived from alkaline-ferric,basic rocks and ultrabasic rocks.Sedimentary phosphorous deposits were formed in the Sinian,Series 2 of Cambrian,metamorphic phosphorous deposits were formed in Mesoproterozoic and magmatic phosphorous deposits were formed in Mesoproterozoic,Indosinian and Yanshanian epoch.According to the analysis of metallogenic conditions and prospecting potential,14 minimum prospecting areas are set up and 6 important prospecting areas analyzed their potential of resources.

关 键 词：磷矿 成矿特征 潜力分析 预测类型 华北地区 

分 类 号：P619.2[天文地球—矿床学]