Study on Sampling Methods for 1∶50 000 Stream Sediment Geochemical Survey in the Gobi Desert Landscape Area of Shuangkoushan, Dachaidan, Qinghai Province
详细信息
- 责任者：Xu Yongli (Faculty of Earth Resources ; China University of Geosciences ; Wuhan 430074 ; China) ; Zheng Youye
- 刊名：Northwestern Geology
- 出版年：2012
- 卷期：45(1)
- 关键词：水系沉积物测量 ; stream sediment surveys ; 青海 ; Qinghai Province
- 页码：p.307-316
- 图表：7 illus., 6 tables, 8 refs.
- 分类号：1500
- issnNo：ISSN1009-6248
- isbnNo：CN61-1149/P
摘要
The Shuangkoushan area of Dachaidan in Qinghai Province is one of arid desert and gobi landscape areas. Mainly relying on the project “Qinghai Luliangshan-Shuangkoushan Mining Vision Survey”, the authors carried out the effective method tests about theoptimum sampling grain size and sampling density to regional geochemical in arid desert and gobi landscape area. Through field sampling, laboratory analysis and data processing, the authors determined the sampling methods of 1∶50 000 stream sediment survey for this special landscape area. The reasonable sampling density is 6~8 samples per square kilometer, and the reasonable sampling grain size is -20~+60 mesh.