Characteristics of Magnetic Susceptibility and Its Paleoenvironmental Records from JL Red Earth Section, Lushan Area
详细信息
- 责任者：Zhu Lidong (Geography Process Lab. ; Zhejiang Normal University ; Jinhua 321004 ; China) ; Jiang Yongjian
- 刊名：Journal of Mountain Science
- 出版年：2011
- 卷期：29(4)
- 关键词：第四纪 ; Quaternary ; 红壤 ; red soils ; 磁化率 ; magnetic susceptibility ; 庐山 ; Lushan Mountains
- 页码：p.385-394
- 图表：4 illus., 2 tables, 48 refs.
- 分类号：1400
- issnNo：ISSN1008-2786
- isbnNo：CN51-1516/P
摘要
920 samples were collected from JL red earth section, Lushan area, Jiangxi Province, and magnetic susceptibility was measured on all these samples. The results indicate that: 1) the magnetic susceptibility of weak plinthitic red earth and loess-paleosol is rather higher than typical plinthitic red earth, loess-paleosol is 2.88 times the value of plinthitic red earth; 2) pedogenic ferromagnetic minerals are prone to dissolve, transform and leach in pesudogleyization environment caused by damp and soil waterlogging, which results in the abnormality of magnetic susceptibility from plinthitic red earth; and 3) based on ESR chronology, generally speaking, the magnetic susceptibility of JL red earth increases by four phases from bottom to top.
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