东北地区硅灰石矿成矿规律及找矿方向  

Metallogenic Regularity and Prospecting Direction of Wollastonite Deposits in Northeast China

作　　者：焦丽香[1] 郭加朋 焦何亭 从相军 韩兰臻 JIAO Li-xiang;GUO Jia-peng;JIAO He-ting;CONG Xiang-jun;HAN Lan-zhen(Shandong Branch of China National Geological Exploration Center of Building Materials Industry,Jinan 250010,China;Shandong provincial archives of land and resources,Jinan 250010,China;Heze City Natural Resources and Planning Bureau,Heze 274000,China)

机构地区：[1]中国建筑材料工业地质勘查中心山东总队,山东济南250010 [2]山东省自然资源资料档案馆,山东济南250010 [3]菏泽市自然资源和规划局,山东菏泽274000

出　　处：《中国非金属矿工业导刊》2024年第6期1-7,12,共8页China Non-Metallic Minerals industry

基　　金：中国地质调查局“中国矿产地质志”项目(编号:DD20160346、DD20190379、DD20221695-36);“中国重要非金属矿成矿系列研究”项目联合资助。

摘　　要：硅灰石是东北地区的优势矿产,矿床成因可分为接触变质型(变成型)、接触交代型(矽卡岩型)、区域变质型,东北地区硅灰石矿床以接触变质型矿床为主,赋矿岩石为海相碳酸盐建造。尤以硅质大理岩、硅质结核大理岩对成矿最为有利。成矿地层时代多为石炭纪、二叠纪,其次有泥盆纪、奥陶纪、志留纪、震旦纪。岩浆岩侵入体以中酸性岩对硅灰石成矿有利,有时中基性杂岩体也成为接触变质成矿作用的热力条件。东北地区与硅灰石矿床与成矿关系密切的侵入岩时代有:华力西期、印支期、燕山期,其中华力西期和燕山期与成矿关系更为相关,而且都以壳源为主。Wollastonite is a dominant mineral in Northeast China.The genesis of the deposit can be divided into contact metamorphic type(metamorphic type),contact metasomatic type(skarn type)and regional metamorphic type.The wollastonite deposit in Northeast China is mainly contact metamorphic type,and the ore bearing rock is marine carbonate formation.In particular,siliceous marble and siliceous nodule marble are the most favorable for mineralization.The metallogenic stratigraphic age is mostly Carboniferous and Permian,followed by Devonian,Ordovician,Silurian and Sinian.Magmatic intrusions are favorable for mineralization with intermediate acid rocks,and sometimes intermediate basic complexes also become the thermal conditions of contact metamorphism and mineralization.The intrusive rock ages closely related to wollastonite deposits and mineralization in Northeast China are Variscan,Indosinian and Yanshanian.Variscan and Yanshanian are more related to mineralization,and they are mainly crust derived.

关 键 词：东北地区 硅灰石 资源特征 矿床类型 地质特征 成矿规律 

分 类 号：P578.953[天文地球—矿物学] P619.269[天文地球—地质学]