Sedimentary Characteristics of the Ordovician Limestone Deposit in the Jingyang-Chunhua Region, Shaanxi

详细信息   

• 责任者：Yang Zhongzhi (Chang’an University ; Xi’an 710061 ; China) ; Xie Congrui
• 刊名：Sedimentary Geology and Tethyan Geology
• 出版年：2012
• 卷期：32(1)
• 关键词：石灰岩矿床 ; limestone deposit ; 陕西 ; Shaanxi Province
• 页码：p.92-96
• 图表：2 illus, 11 refs.
• 分类号：1002
• 出版序号：20130283
• issnNo：ISSN1009-3850
• isbnNo：CN51-1593/P

摘要

///The Ordovician strata in the Jingyang-Chunhua region, Shaanxi may be grouped into four formations, from the base upwards including Sanshanzi, Jiawang, Majiagou and Taoqupo Formations. The carbonate rocks more than 1 000 m in thickness in the upper member of the Majiagou Formation are very pure, with the average CaO contents of more than 54%, and average MgO contents of less than 1%. These carbonate rocks constitute the extra-large limestone deposit which is unmatchable on the North China platform.