摘要
崔家峪石英砂岩矿床赋存于下寒武系李官组,矿体呈层状,厚度5.2～15.50m;矿石中砂结构,分选性好;矿石w(SiO2)高达98.77%～98.98%,w(Fe2O3)仅0.038%～0.045%,实属少见的超纯石英砂岩矿床。该矿床形成于温暖潮湿气候下的稳定大陆壳边缘滨海环境,石英直接来源于震旦系土门群砂岩,矿床是剥蚀 沉积多个旋回不断分选富集的结果。研究该矿床地质特征和成因具有地质和找矿指导意义。
Cuijiayu quartz sandstone deposit occurs in the Sandstone Member,Liguan Formation of Lower Cambrian. The ore bodies are stratiform. The thickness of ore bodies are 5.2～15.5 m. The ore SiO_2 content is up to 98.77%～98.98%. Fe_2O_3 only 0. 038%～0.045%, which belongs to a ultra pure quartz sandstone mineral deposit . This mineral deposit forms at the edge strand environment of steady continent shelf under the warm moist climate. The quartz are directly from sandstone of Sinian Tumen Group and the deposit formed by sorting and concentration during multiple cycles of denudation-sedimentation. Study on the deposit's geological characteristics and gensis is of geological significance guidance for further exploration.
出处
《地质找矿论丛》
CAS
CSCD
2004年第1期30-33,共4页
Contributions to Geology and Mineral Resources Research
基金
国家自然科学基金(49872038)
中国科学院"百人计划"项目资助。
关键词
崔家峪
石英砂岩矿床
地质特征
成因
山东省
Cuijiayu
Quartz sandstone deposit
geological characteristic
genesis
Shandong province
