我国地洼型造山-造盆作用与硅藻土成矿 |
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引用本文: | 木士春,汪灵,胡宝清.我国地洼型造山-造盆作用与硅藻土成矿[J].大地构造与成矿学,2001,25(3):313-320. |
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作者姓名: | 木士春 汪灵 胡宝清 |
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作者单位: | 1. 中国科学院长沙大地构造研究所;武汉理工大学 2. 中国科学院长沙大地构造研究所, |
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基金项目: | 湖南省中青年基金,湖南省科技发展计划,19960312,1998-750-14,, |
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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。
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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 |
文章编号: | 1001-1552(2001)03-313-08 |
修稿时间: | 2001年7月31日 |
RELATIONSHIP BETWEEN METALLOGENESIS OF DIATOMACEOUS EARTH AND BASIN-RANGE FORMING PROCESS |
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Abstract: | 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. |
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Keywords: | Diatomaceous earth diwa structure range-basin forming process range-basin coupling metallogenesis of metalloid |
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