沉积学研究在沉积和层控矿床勘查中的作用(代序)  

The Role of Sedimentological Studies in Sedimentary and Stratified Deposit Exploration(Preface)

作　　者：周琦 吴冲龙 杜远生[1,2] 张志庭 覃永军[1] ZHOU Qi;WU Chon-glong;DU Yuan-sheng;ZAN Zhi-ting;QIN Yong-jun(Engineering Technology Innovation Center of Mineral Resources Explorations in Bedrock Zones,Ministry of Natural Resources,Guiyang 550081,Guizhou,China;Institute of Geological Information Science and Technology,China University of Geosciences(Wuhan),Wuhan 430074,Hubei,China;GuiZhou Geological survey,550081 Guiyang,Guizhou,China)

机构地区：[1]自然资源部基岩区矿产资源勘查工程技术创新中心,贵州贵阳550081 [2]中国地质大学(武汉)地质信息科技研究所,湖北武汉430074 [3]贵州省地质调查院,贵州贵阳550081

出　　处：《贵州地质》2021年第2期109-118,共10页Guizhou Geology

基　　金：2020年贵州省重点矿产资源大精查项目和黔科合平台人才[2018]5618号。

摘　　要：这次贵州省重点矿产资源大精查,不仅要探明精查对象的资源储量,还要开展矿产形成、分布规律研究,为进一步的深部和外围预测奠定基础。贵州省的优势矿产资源,多数是沉积矿产和层控矿产。为了认识并掌握其形成、分布规律,需要深入开展沉积学研究,分析和判别其沉积相和沉积环境。本文以4个案例,说明了沉积学研究在本次优势矿产资源大精查中的作用,其中包括:获取成矿过程的同沉积证据、揭示成矿环境条件和成矿过程、查明矿体厚度分布的同期破坏因素和基于沉积相模式的成矿机制分析和外围预测等方面。实践结果表明,系统而准确的岩(矿)芯和露头观察,是识别沉积构造并获取其特征信息,判别其沉积相和沉积环境的基本方法,也是揭示沉积矿床和层控矿床形成条件、机制和分布规律的有效途径。In Big Detailed Exproration of key mineral resource of Guizhou province,we should not only prove the resource reserves of the object,but also carry out the study of its formation and distribution law,so as to lay a foundation for further deep and peripheral prediction.The dominant mineral resources of Guizhou Province are mostly sedimentary minerals and layer-controlled minerals.In order to understand and master its formation and distribution,it is necessary to carry out deep sedimentological research to analyze and distinguish its sedimentary facies and sedimentary environment.In this paper,four typical cases are presented,introduces the role of sedimentology in the Big Detailed Exproration of important mineral resources,including:obtaining the co-sedimentary evidence of metallogenic process,revealing the environmental conditions and metallogenic process of ore deposit formation,identifying the Same period destruction factors for ore body thickness distribution and based on sedimentary facies model,metallogenic mechanism analysis and peripheral prediction of mining area and so on.The practical results show that systematic and accurate observation of rock(ore)core and outcrop is the basic method to identify sedimentary structures and obtain their characteristic information,and to distinguish their sedimentary facies and sedimentary environment.It is also the effective approaches to understand the formation conditions,mechanism and distribution law of sedimentary deposits and stratabound deposits.

关 键 词：沉积矿床 层控矿床 沉积构造 沉积相 同沉积现象 矿体厚度变化 成矿机制 

分 类 号：P512.2[天文地球—地质学] P588.2