气候变化领域集成服务门户(CCPortal): Magnetic properties of surface soils across the southern Tarim Basin and their relationship with climate and source materials

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DOI	10.1007/s11434-010-4210-4
	Magnetic properties of surface soils across the southern Tarim Basin and their relationship with climate and source materials
	Zan JinBo; Fang XiaoMin; Nie JunSheng; Yang ShengLi; Song ChunHui; Dai Shuang
通讯作者	Fang, XM (通讯作者)
发表日期	2011
ISSN	1001-6538
EISSN	1861-9541
起始页码	290
结束页码	296
卷号	56 期号:3
英文摘要	The magnetic susceptibility (chi) of surface soils on the Chinese Loess Plateau (CLP) has strong positive correlation with mean annual precipitation. It is widely accepted that ultrafine magnetite/maghemite grains produced during pedogenesis are responsible for the enhancement of chi, and loess chi on the CLP has been widely used as a proxy for the intensity of the East Asian summer monsoon. However, few works have investigated mechanisms for the enhancement of chi in the case of surface aeolian sediments in westerly-dominated inland China, north of the Tibetan Plateau. Here detailed rock magnetism and grain size studies of 49 surface samples taken across the southern Tarim Basin for different rainfall/temperature/altitude conditions are presented. The results show that samples taken from desert have the lowest chi values and that chi of loessic sand and loess samples decreases with increasing altitude. In addition, the rock magnetism studies suggest that the magnetic properties of surface soils across the southern Tarim Basin are mainly controlled by the concentration of coarse aeolian ferrimagnetic minerals. The contribution of ultrafine pedogenically produced magnetic grains to chi is very limited.
关键词	CHINESE LOESS PLATEAU TAKLIMAKAN DESERT SANDS SUSCEPTIBILITY VARIATIONS LATE QUATERNARY PALEOSOLS SIBERIA RECORD SEDIMENTS TRANSECT FIELD
英文关键词	surface soils; magnetic susceptibility; grain size; Tarim Basin; rock magnetism
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000286604800010
来源期刊	CHINESE SCIENCE BULLETIN
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257901
推荐引用方式 GB/T 7714	Zan JinBo,Fang XiaoMin,Nie JunSheng,et al. Magnetic properties of surface soils across the southern Tarim Basin and their relationship with climate and source materials[J]. 中国科学院青藏高原研究所,2011,56(3).
APA	Zan JinBo,Fang XiaoMin,Nie JunSheng,Yang ShengLi,Song ChunHui,&Dai Shuang.(2011).Magnetic properties of surface soils across the southern Tarim Basin and their relationship with climate and source materials.CHINESE SCIENCE BULLETIN,56(3).
MLA	Zan JinBo,et al."Magnetic properties of surface soils across the southern Tarim Basin and their relationship with climate and source materials".CHINESE SCIENCE BULLETIN 56.3(2011).