- 责任者：Xing Wanli (Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Liu Chenglin
- 刊名：Acta Geoscientica Sinica
- 出版年：2013
- 卷期：34(5)
- 关键词：蒸发岩 ; evaporites ; 钾盐矿床 ; potash deposit ; 库车坳陷 ; Kuqa Depression
- 页码：p.559-566
- 图表：8 illus., 1 table, 26 refs.
- 分类号：1002
- issnNo：ISSN1006-3021
- isbnNo：CN11-3474/P
There are a lot of salty mineral resources in Paleogene-Neogene strata in Kuqa basin, especially in the central and western part. The Kuqa basin is one of the most favorable areas to find a variety of salty deposits. In recent years, Drill Hole DZK01 has been one of the scientific exploration drill holes in search for the resource of sylvite. The main purpose of this drill hole is to find out whether the Kuqa basin contains sylvite deposits or not. This paper mainly analyzed petrology, mineralogy, and potassium-forming environment of Paleogene evaporates in the basin. Salt rock containing mud conglomerates is the major lithology in Paleogene evaporates. Salt rock containing mud conglomerates is of tectonic origin and also a product of the highly concentrated saline lake. Haliteis the major mineral in Paleogene strata in Kuqa basin. There are three major kinds of K-bearing minerals in Drill Hole DZK01, i.e., syngenite, sylvite and carnallite, which indicates that the ancient saline lake had reached the high concentration degree. An analysis of samples shows that the ancient saline lake in Kuqa basin was in a closed and shallow sedimentary environment. There were five large-scale desalination events in the development of the saline lake, and therefore the salts were accumulated well, and Kuqa basin had a good K-forming environment.