云南东川区白龙潭磷矿床地质特征及成因分析  

THE GEOLOGICAL FEATURE AND A GENESIS ANALYSIS OF BAILONGTAN P DEPOSIT IN DONGCHUAN,YUNNAN

作　　者：刘晓东 熊磊 周机灵 李仕斌 LIU Xiao-dong;XIONG Lei;ZHOU Ji-ling;LI Shi-bin(Geological Team 306,Yunnan Bureau of Nonferrous Geology,Kunming 650217)

机构地区：[1]云南省有色地质局三〇六队,云南昆明650217

出　　处：《云南地质》2018年第4期483-488,共6页Yunnan Geology

摘　　要：云南东川区白龙潭磷矿区位于巧家-会泽-武定成磷区,该矿区磷矿体呈层状-似层状,赋存于下寒武统梅树村组中谊村段中,共含有四个矿层;矿体产状与岩层产状一致,均较为平缓,平均倾角15°。矿石以泥晶结构、内碎屑结构、生物碎屑结构为主,呈致密块状、条带、条纹状构造。综合特征反映出该磷矿属于浅海相沉积型磷块岩矿床。Bailongtan P orefield in Dongchuan,Yunnan is in the Qiaojia-Huize-Wuding P metallogenesis Province.The P orebody of this orefield is bedded,stratoid in Lower Cambrian Meishucun Formation Zhongyicun Member.There are 4 ore beds as a whole.The occurrence of orebody is consistent with that of the rock bed,rather gentle,average dip angle 15°.The ore textures are mainly argillo-crystalline,intraclast,bioclast texture;dense massive,banded,ribbon structure.The comprehensive feature shows it is a neritic facies sedimentary phosphorite deposit.

关 键 词：磷块岩 地层控矿 沉积型磷矿床 云南东川白龙潭 

分 类 号：P619.213[天文地球—矿床学]