Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.4028/www.scientific.net/AMM.580-583.912 |
Relations between paleoclimatological conditions and mineralogical characteristics of clays in Miocene sediments at Linxia basin, China | |
Yu, Na; Hong, Hanlie; Li, Zhaohui; Zhang, Kexin; Li, Rongbiao | |
通讯作者 | Yu, Na |
会议名称 | 4th International Conference on Civil Engineering, Architecture and Building Materials (CEABM) |
会议日期 | MAY 24-25, 2014 |
会议地点 | Haikou, PEOPLES R CHINA |
英文摘要 | Linxia basin is a late Cenozoic fault-block basin along the border between the Tibet plateau and the Loess plateau in Northwestern China. Its formation and sediments' record may be directly affected by the structural dynamics and the uplift of the Tibet Plateau. For this reason, we studied the mineral characteristics of the Maogou formation of Miocene sediments using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD results showed that quartz, chlorite, illite, calcite, plagioclase, orthoclase, kaolinite, and trace palygorskite are present throughout the sequence of the cross-section in Linxia basin. In contrast, gypsum and ankerite occur occasionally in the upper portion of the Miocene deposits. The content of calcite varied with layers in the profile and was relatively concentrated in mudstone. Chlorite and illite were observed transforming into palygorskite under SEM observation. Based on the mineral characteristics and the change of mineral composition, especially the clay minerals, it could be inferred that an arid environment prevailed in the region with warm and cold intervals during Miocene time. |
英文关键词 | Clay minerals Linxia basin Paleoclimate Palygorksite |
来源出版物 | ADVANCES IN CIVIL AND INDUSTRIAL ENGINEERING IV |
ISSN | 1660-9336 |
出版年 | 2014 |
卷号 | 580-583 |
页码 | 912-+ |
EISBN | 978-3-03835-165-8 |
出版者 | TRANS TECH PUBLICATIONS LTD |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | CPCI-S |
WOS记录号 | WOS:000348897701053 |
WOS关键词 | TIBETAN PLATEAU ; PALYGORSKITE ; EVOLUTION ; DEPOSITS ; CLIMATE ; UPLIFT |
WOS类目 | Engineering, Industrial ; Engineering, Civil ; Materials Science, Multidisciplinary ; Mechanics |
WOS研究方向 | Engineering ; Materials Science ; Mechanics |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/302957 |
作者单位 | Jilin Univ, Coll Earth Sci, Changchun 130021, Jilin, Peoples R China |
推荐引用方式 GB/T 7714 | Yu, Na,Hong, Hanlie,Li, Zhaohui,et al. Relations between paleoclimatological conditions and mineralogical characteristics of clays in Miocene sediments at Linxia basin, China[C]:TRANS TECH PUBLICATIONS LTD,2014:912-+. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。