我国地洼型造山-造盆作用与硅藻土成矿  

RELATIONSHIP BETWEEN METALLOGENESIS OF DIATOMACEOUS EARTH AND BASIN-RANGEFORMING PROCESS

作　　者：木士春[1] 汪灵[2] 胡宝清[2] 

机构地区：[1]武汉理工大学材料复合新技术国家重点实验室,湖北武汉430070 [2]中国科学院长沙大地构造研究所,湖南长沙410013

出　　处：《大地构造与成矿学》2001年第3期313-320,共8页Geotectonica et Metallogenia

基　　金：湖南省中青年专家基金项目19960312;湖南省"九五"科技发展重点项目1998-750-14资助

摘　　要：本文从盆-山体系演化的角度,探讨了我国地洼型造山-造盆作用与硅藻土成矿关系。研1)硅藻对成矿盆地表现出了一定的选择性,通常只有侧生或伴生型微型地洼盆地才2)地洼期盆-山耦合过程引起的气候效应对我国陆相硅藻土成矿起着积极;3)地洼期盆-山活动性直接控制着硅藻土成矿,盆-山体系的相对稳定有利于高质量硅藻;4)盆-山转换过程中,成矿期后的盆地抬升对硅藻土矿层的保存是相对有利的。Through studying on the relationshi p between metallogeny of diatomaceous earth(DE)and diwa-type basin-range forming p rocess,it shows that 1)selectivity for ore-forming basin o f DE is represented,generally,only l aterrogenic or companion minitype b asins of diwa type are in favor of ore formation of DE;2)influence on ore formation of DE for t ectonic-climate effect caused by coupling of basin-range of diwa period is very prominent ;3)characteristics and quality of ore formation of DE are dir ectly controlled by the basin-range activity of diwa period,the quality of ore is of direc t correlation with the stability of b asin-range;4)the uplifting of basin is relatively ben eficial for the keeping of ores durin g the range-basin trans-forming process after ore-forming p eriod.

关 键 词：硅藻土 地洼构造 造山-造盆作用 盆-山耦合 非金属成矿学 时空分布 

分 类 号：P619.265[天文地球—矿床学]