贵州省瓮福磷矿床含磷岩系陡山沱组厚度及其与磷矿关系  

Thickness of Phosphorite Bearing Rock Series Doushantuo Formation and Its Relation with Phosphorite Mine of Wengfu Phosphorite Deposit in Guizhou Province

作　　者：陈群[1] 田维红[1] 曾文武 CHEN Qun;TIAN Wei-hong;ZENG Wen-wu(Geological Party,Guichou Bureau of Geology&Mineral Exploration and Development,Qingzhen 551400,Guizhou,China)

机构地区：[1]贵州省地矿局115地质大队,贵州清镇551400

出　　处：《贵州地质》2022年第3期233-244,共12页Guizhou Geology

基　　金：贵州省科学技术基金计划项目—瓮福磷矿矿集区矿床地质特征及深部找矿研究(黔科合基础[2016]1407)。

摘　　要：陡山沱组含磷岩系在瓮福磷矿全区分布,露头带围绕着白岩复背斜核部呈环带状出露,往西、往北缓倾斜隐伏产出,往东陡倾斜隐伏产出。最小厚度5.05 m,最大厚度88.42 m,平均厚34.80 m。大致分为两个大厚度区、三个中厚度区、两个小厚度区,大厚度区位于北西部翁招坝、南东侧北斗山—铅厂—沙子冲一线两个区域。陡山沱早期,瓮福地区整体属台地浅滩潮坪环境,可分为北部台地浅滩、南部潮坪两大部分;陡山沱晚期,瓮福地区属台地边缘浅滩潮坪环境,整体展现为地势平缓开阔的海滩地貌景观。Phosphorite bearing rock series of Doushantuo formation can be found in the whole Wengfu phosphorite deposit,the outcrop belt exposed around white rock anticlinorium core with girdle appearance,conceal occurred flat dipping in the west and north,steeply dipping in the east.The smallest thickness is 5.05m,the biggest thickness is 88.42m,the average thickness is 34.8m.It generally be divided into 2 big thickness area,3 medium thickness area and 2 small thickness area,the big thickness area located in northwest Wengzhaoba and southeast Beidoushan-Qianchang-Shazichong area.In the early Doushantuo period,the whole Wengfu area belong to paltform shallow tidal environment,the north area is platfotm shallow and the south area is tidal flat.In the late Doushantuo period,Wengfu area belong to platform edge shallow tidal environment,show a gently and open beachgeomorphologic landscape.

关 键 词：瓮福磷矿 陡山沱组 成磷环境 

分 类 号：P619.213[天文地球—矿床学] P534.31[天文地球—地质学]