Geochemical Characteristics of Holocene Loess-Soil Profile on Changchengyuan Loess Tableland of Ningxia
详细信息
- 责任者：Yang Hongjin (College of Tourism and Environment Sciences ; Shaanxi Normal University ; Xi’an 710062 ; China) ; Huang Chunchang
- 刊名：Scientia Geographica Sinica
- 出版年：2010
- 卷期：30(1)
- 关键词：全新世 ; Holocene ; 黄土 ; loess ; 宁夏 ; Ningxia
- 页码：p.134-140
- 图表：3 illus., 3 tables, 22 refs.
- 分类号：1400
- issnNo：ISSN1000-0690
- isbnNo：CN22-1124/P
摘要
Through the analysis of macro- and micro-elements and their variations with XRF at the CCY loess-soil site, Ningxia, the authors obtain a number of geochemical parameters. There is a comparison between these chemical parameters and magnetic susceptibility, frequency dependent susceptibility, which indicates that during the paleosol formation, the climate was warm and humid with abundant precipitation and greater eluviation, while during the loess accumulation, the climate was relatively cold and arid with weak pedogenesis. The variation of elements can indirectly reflect the change of climate and pedogenic environment during the process of loess chemical weathering.