赛马碱性岩稀有稀土矿地质化学特征及找矿潜力  

Geological and geochemical characteristics and prospecting potential of rare element and rare earth element deposits in Saima alkaline complex

作　　者：南哲 王林世 侯旭 翟征博 王杨 刘洋 NAN Zhe;WANG Lin-Shi;HOU Xu;ZHAI Zheng-Bo;WANG Yang;LIU Yang(Liaoning Nuclear Industry Geology 241st Brigade Co.,Ltd.,Fengcheng 118100,China;Liaoning Geology and Mining Group Energy Geology Co.,Ltd.,Shenyang 110016,China;Natural Resources Bureau of Benxi Manchu Autonomous County,Liaoning Province,Benxi 117000,China)

机构地区：[1]辽宁省核工业地质二四一大队有限责任公司,辽宁凤城118100 [2]辽宁省地矿集团能源地质有限责任公司,辽宁沈阳110016 [3]辽宁省本溪满族自治县自然资源局,辽宁本溪117000

出　　处：《物探与化探》2023年第3期670-680,共11页Geophysical and Geochemical Exploration

基　　金：辽宁省地质勘查基金项目(辽国土资项[2017]34号、辽自然资项[2020]56号);中国地质调查局项目(DD20160131)。

摘　　要：赛马碱性岩是一个十分独特而复杂的地质体,以其岩石类型多样,矿物种类繁多,富含铀、钍、稀有稀土元素而闻名。本研究通过对赛马碱性岩地区近几年地质勘查项目成果的分析总结,发现赛马碱性岩第二侵入期岩石普遍存在稀有稀土元素矿化,成矿温度为中—低温,矿床类型主要分为残浆交代型和矽卡岩型两种,同时结合1∶20万水系沉积物测量数据和1∶1万原生晕测量数据,对整个碱性杂岩体进行了找矿潜力分析,在赛马碱性岩及其外围圈定出3个成矿预测区:赛马—顾家稀有稀土及放射性元素成矿预测区、爱阳稀有稀土及放射性元素成矿预测区、双山子稀土矿成矿预测区。该研究对赛马碱性岩地区的稀有稀土多金属找矿具有重要意义。The Saima alkaline complex is a unique and complex geologic body.It is well known for its diverse rock types and mineral types and high contents of uranium,thorium,and rare and rare earth elements.This study analyzed and summarized the geological exploration results of the Saima alkaline complex area in recent years,discovering that the rocks in the second intrusive stage of the Saima alkaline complex show the wide mineralization of rare and rare earth elements,with a moderate-to low-mineralization temperature.There are mainly two types of deposits in Saima alkaline complex area,namely the residual magmatic metasomatism type and the skarn type.Furthermore,the prospecting potential of the whole alkaline complex was analyzed by combining the 1∶200,000 stream sediment survey data and the 1∶10,000 primary halo survey data.Three predicted metallogenic zones of rare earth and radioactive elements were delineated in the Saima alkaline complex and its surrounding area,namely Saima-Gujia,Aiyang,and Shuangshanzi.This study is of great significance for the prospecting of rare and rare earth polymetals in the Saima alkaline complex area.

关 键 词：稀有稀土矿床 地质化学特征 找矿潜力 赛马碱性岩 

分 类 号：P6226[天文地球—地质矿产勘探] P618.79[天文地球—地质学]