区域成矿地球化学理论体系问题研究:兼论沱沱河区域化探异常集群  

Research on theoretical system of regional metallogenic geochemistry:The assembly of regional geochemical anomalies in Tuotuo River

作　　者：奚小环[1] 李敏[1] 刘荣梅[2] 刘长征 许光 任智斌 

机构地区：[1]中国地质调查局,北京100037 [2]中国地质调查局发展研究中心,北京100037 [3]青海省第五地质矿产勘查院,青海西宁810028

出　　处：《地学前缘》2015年第5期196-214,共19页Earth Science Frontiers

基　　金：中国地质调查局项目"新疆东天山地区地球化学勘查技术及资源潜力评价方法研究"(200120130088);中国地质调查局项目"青藏高原地球化学勘查技术及资源潜力评价方法研究"(20020130001)

摘　　要：区域成矿地球化学理论以成矿物质为主体，以成矿地质条件为背景，主要研究大型超大型矿床在成壳、成岩、成矿与成晕过程中的地球化学规律。区域成矿地球化学理论体系是基于成矿地质过程与成矿级次建立的研究框架，包括成矿地球化学块体理论、成矿地球化学区域分带理论、成矿地球化学次级分带理论和成矿地球化学原生分带理论，主要研究成矿省（域）、成矿区带、成矿亚带和矿床等各级次成矿地球化学问题。在区域成矿地球化学理论指导下，结合我国长期形成的区域、普查与详查化探工作程序特点，建立与之相适应的区域矿产资源地球化学评价体系和区域地球化学勘查方法技术体系，系统研究不同层级的成矿与找矿地球化学问题。各体系之间既密切相关地联系在一起，又具有独立的研究内涵与范畴。本文结合西南三江北段成矿带沱沱河区域化探异常集群的重大发现，主要讨论区域成矿地球化学理论体系及相关的评价体系与方法体系问题。The regional metallogenic geochemical theory focuses on the research of geochemical law during the formation of giant deposits. Based on the framework of geological process and mineralization series, the theoretical system consists of the geochemical block theory of mineralization, the geochemical anomaly series theory, and the geochemical secondary and primary zonation theory. Under the guidance of this theoretical system and according to the work procedure of geochemical exploration including regional, general-survey and detailed geochemical exploration formed during the past decades, the regional mineral resource geochemical assessment system and the regional geochemical exploration techniques have been established, which can be used to study the geochemical phenomenon related to mineralization and exploration on different scales. This paper mainly discusses the theoretical system of regional metallogenic geochemistry and related assessment system as well as methodology based on the assembly of regional geochemical anomalies in Tuotuo River region of the north Three-River mineralization belt, southwest China.

关 键 词：成矿地球化学块体理论 成矿地球化学异常系列理论 成矿地球化学次级分带理论 成矿地球化学原生分带理论 区域成矿地球化学理论体系 

分 类 号：P632[天文地球—地质矿产勘探] P596[天文地球—地质学]