塔里木盆地地质环境演化及钾矿寻找研究进展
Geological Evolution and Advance of Seeking Potash in Tarim Basin
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摘要: 描述了我国钾盐资源的现状,总结了世界上大型钾盐矿床的分布和形成规律:物质基础、地质构造、岩相古地理及气候条件.分析了塔里木盆地的基本概况,阐述了在晚白垩—古近纪这一历史上重要的成盐期,塔里木盆地的地质环境演化历史,分析了塔里木盆地晚白垩纪和古近纪沉积相特点,确定了塔里木盆地的两个浓缩中心——库车凹陷和塔西南凹陷,综述了塔里木盆地的地质找钾状况,为钾盐的找矿工作做了良好的地质铺垫.Abstract: The potash-resource status of our country is described in this paper. The distribution and forming disciplines of large potash deposits in the world are concluded: foundation of substance, geological constructions, facies and paleo-geography condition sand special climate. The general situation sand the history of the geological evolution of Tarim basin between the late Cretaceous Period and the early Tertiary are analyzed. Then it analyzes the characters of the facies of the late Cretaceous Period and the early Tertiary. And two concentration centers—Kuche sag and Tarim south-west sag are achieved. This paper also reviews the status of seeking potash deposits in Tarim basin. A favorable geological foundation is set up for seeking potash deposits.
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Key words:
- Tarim basin /
- the late Cretaceous /
- the early Tertiary /
- geological evolution /
- potass deposits
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