摘要
矿床综合异常是成矿预测的重要标志。在概述成矿系统特征的基础上，论述了地质异常与成矿系统的关系，提出矿源场异常、矿液通道异常、矿石圈闭异常（储矿场异常）等概念，建立了成矿系统与综合异常的相关性模型框架。提出了矿床综合异常的研究方法，并依据对胶东金矿和赣西北铜矿地质异常的实际研究，提出对找寻热液金属矿床有重要意义的４种异常带：①异常浓集带；②异常急变带；③异常复合带；④异常叠加带。并强调指出，对控矿地质因素和矿化类型的详细研究是评价异常和成矿预测的关键问题。
Comprehensive geo anomaly of mineral deposits is a main kind of ore forming indicator. After the discription of the ore forming system idea, the authors discuss the relationship between the geo anomaly and ore forming system and some concepts about the ore source field anomaly, the ore bearing fluid passageway anomaly and the ore trap anomaly are put forward. The authors present also the methods for studying the comprehensive geo anomaly. Based on systematic research on the gold deposits in Jiaodong district and copper deposits in northwest Jiangxi Province, four anomaly belts with more significant in finding of hydrothermal ore deposits are summarized, namely: (1)concentrated anomaly belt, (2)abrupt anomaly belt, (3)composited anomaly belt and (4) superimposed anomaly belt. At final, the authors emphasize that the carefully studies of ore controlling factors and mineralizing styles of prospecting area are the key problem in appraising geo anomaly and mineral deposit prognosis.
出处
《现代地质》
CAS
CSCD
北大核心
1999年第1期99-104,共6页
Geoscience
基金
国家科技攀登计划
国土资源部地质科技攻关项目
重点科技项目
关键词
成矿系统
综合地质异常
地球化学异常
成矿预测
ore forming system, comprehensive geo anomaly, geochemical anomaly, geophysic anomaly, mineral deposit prognosis
