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中朝古元古代层控铅锌矿床类型及其比较
引用本文:方如恒.中朝古元古代层控铅锌矿床类型及其比较[J].国土资源,1999(1).
作者姓名:方如恒
作者单位:辽宁地质矿产勘查开发局
摘    要:中朝古元古代层控铅锌矿床属海底喷气沉积铅锌矿床。以地层对比与含矿层位为基础,以铅、硫同位素为重要信息,结合后期地质事件对矿床的影响与矿床主要成矿阶段的不同,将这类矿床划分4个类型:受变质沉积层控铅锌矿床(大栗子式)、受改造沉积层控铅锌矿床(张家堡子式)、变质热液改造型层控铅锌矿床(检德式)和岩浆热液叠生型层控铅锌矿床(青城子式)。从成矿氛围、矿体、伴生矿与共生矿、矿物组合、结构与构造、蚀变、地球化学特征、稳定同位素、成矿物理化学条件、远景评价10个方面比较,发现它们每一项都是既有相同点,又有相异点,证明了大类型的相同和小类型的差别。

关 键 词:古元古代  层控铅锌矿床  类型  比较  中国  朝鲜

TYPES AND CORRELATION OF SINO KOREAN PALEO PROTEROZOIC STRATABOUND Pb Zn DEPOSITS
Fang Ruheng.TYPES AND CORRELATION OF SINO KOREAN PALEO PROTEROZOIC STRATABOUND Pb Zn DEPOSITS[J].Land & Resources,1999(1).
Authors:Fang Ruheng
Abstract:Sino Korean Paleo Proterozoic stratabound Pb Zn deposits belong to submarine exhalogenic sedimentary Pb Zn deposits. According to ore bearing horizon, Pb and S isotopes, the influence of deuterogenic geological events on deposits, and the differences of the main metallogenetic stages, these Pb Zn deposits can be divided into 4 types: metamorphosed sedimentary (Dalizi style), reformed sedimentary (Zhangjiapuzi style), metamorphic hydrothermal reformed type (Jiande style) and magmatic hydrothermal diplogenesis type (Qingchenzi style) stratabound Pb Zn deposits. On the aspects of metallogenetic setting,orebodies,associated and paragenetic deposits,mineral assemblages, texture and structure,alteration,geochemical characteristics,stable isotopes, among these 4 types of Pb Zn deposits,there are either similarity, which they all are stratabound, or differences,such as ore forming factors and conditions,etc. But on the aspect of ore forming physical chemical condition, these 4 types of Pb Zn deposits all experienced 3 stages of change: depositing, metamorphosed and Mesozoic tecto magmatic activities. In all factors, temperature and pressure are the most important, influencing and controlling the other factors. The prospective evaluation of a deposit is closely related with the type of the deposit. During prospective evaluation,the attention should be differently put on different types of deposits.
Keywords:Paleo  Proterozoic  Stratabound Pb  Zn deposits  Types  Correlation  China  Korean
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