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Mineral magnetic studies of the vermiculated red soils in southeast China and their paleoclimatic significance

文献类型：期刊论文

作者Liu, Caicai1,2; Deng, Chenglong2; Liu, Qingsong2
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期2012-04-15
卷号329页码:173-183
关键词Mineral magnetism Red soils Southern China
ISSN号0031-0182
DOI10.1016/j.palaeo.2012.02.035
文献子类Article
英文摘要Vermiculated red soil, the main pedostratigraphical unit of the red soil sequences widespread in subtropical and tropical China, has experienced a higher degree of pedogenesis than loess/paleosols and the underlying red clays in the Loess Plateau of northern China. Previous studies suggested that magnetic properties of the vermiculated units of the red soils are significantly degraded compared to those of the non-vermiculated counterparts. The mechanism for this magnetic decrease, however, has not been well determined. In order to resolve this problem, this study has investigated two red soil sequences of different origin in southeast China by integrating environmental and mineral magnetic research. The results show that the magnetic depletion in the vermiculated units was probably caused by both dissolution of magnetic minerals in the white veins and transformation of highly magnetic maghemite to weakly magnetic hematite. It appears that stronger pedogenesis favors the transformation of more maghemite to hematite and magnetic properties associated with the relative concentration of maghemite to hematite can be used as climate indicator in the vermiculated red soils. The variation trends of the magnetic parameters of the vermiculated red soils prior to 0.85-0.9 Ma suggest a strengthening of the East Asian summer monsoon. The reverse trend of these parameters after 0.85-0.9 Ma may correlate with a significant strengthening of the East Asian winter monsoon since 0.85 Ma. (C) 2012 Elsevier B.V. All rights reserved.
WOS关键词GRAIN-SIZE DISTRIBUTION ; LOESS PLATEAU ; ENVIRONMENTAL MAGNETISM ; ANHUI PROVINCE ; XIASHU LOESS ; PEDOGENESIS ; SUSCEPTIBILITY ; EARTH ; SEQUENCES ; MAGNETOSTRATIGRAPHY
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
WOS记录号WOS:000303221500014
出版者ELSEVIER SCIENCE BV
资助机构National Natural Science Foundation of China(41104040 ; National Natural Science Foundation of China(41104040 ; National Natural Science Foundation of China(41104040 ; National Natural Science Foundation of China(41104040 ; China Postdoctoral Science Foundation(20100480358) ; China Postdoctoral Science Foundation(20100480358) ; China Postdoctoral Science Foundation(20100480358) ; China Postdoctoral Science Foundation(20100480358) ; National Basic Research Program of China(2012CB821900) ; National Basic Research Program of China(2012CB821900) ; National Basic Research Program of China(2012CB821900) ; National Basic Research Program of China(2012CB821900) ; BAIREN of the Chinese Academy of Sciences ; BAIREN of the Chinese Academy of Sciences ; BAIREN of the Chinese Academy of Sciences ; BAIREN of the Chinese Academy of Sciences ; 40925012) ; 40925012) ; 40925012) ; 40925012) ; National Natural Science Foundation of China(41104040 ; National Natural Science Foundation of China(41104040 ; National Natural Science Foundation of China(41104040 ; National Natural Science Foundation of China(41104040 ; China Postdoctoral Science Foundation(20100480358) ; China Postdoctoral Science Foundation(20100480358) ; China Postdoctoral Science Foundation(20100480358) ; China Postdoctoral Science Foundation(20100480358) ; National Basic Research Program of China(2012CB821900) ; National Basic Research Program of China(2012CB821900) ; National Basic Research Program of China(2012CB821900) ; National Basic Research Program of China(2012CB821900) ; BAIREN of the Chinese Academy of Sciences ; BAIREN of the Chinese Academy of Sciences ; BAIREN of the Chinese Academy of Sciences ; BAIREN of the Chinese Academy of Sciences ; 40925012) ; 40925012) ; 40925012) ; 40925012) ; National Natural Science Foundation of China(41104040 ; National Natural Science Foundation of China(41104040 ; National Natural Science Foundation of China(41104040 ; National Natural Science Foundation of China(41104040 ; China Postdoctoral Science Foundation(20100480358) ; China Postdoctoral Science Foundation(20100480358) ; China Postdoctoral Science Foundation(20100480358) ; China Postdoctoral Science Foundation(20100480358) ; National Basic Research Program of China(2012CB821900) ; National Basic Research Program of China(2012CB821900) ; National Basic Research Program of China(2012CB821900) ; National Basic Research Program of China(2012CB821900) ; BAIREN of the Chinese Academy of Sciences ; BAIREN of the Chinese Academy of Sciences ; BAIREN of the Chinese Academy of Sciences ; BAIREN of the Chinese Academy of Sciences ; 40925012) ; 40925012) ; 40925012) ; 40925012) ; National Natural Science Foundation of China(41104040 ; National Natural Science Foundation of China(41104040 ; National Natural Science Foundation of China(41104040 ; National Natural Science Foundation of China(41104040 ; China Postdoctoral Science Foundation(20100480358) ; China Postdoctoral Science Foundation(20100480358) ; China Postdoctoral Science Foundation(20100480358) ; China Postdoctoral Science Foundation(20100480358) ; National Basic Research Program of China(2012CB821900) ; National Basic Research Program of China(2012CB821900) ; National Basic Research Program of China(2012CB821900) ; National Basic Research Program of China(2012CB821900) ; BAIREN of the Chinese Academy of Sciences ; BAIREN of the Chinese Academy of Sciences ; BAIREN of the Chinese Academy of Sciences ; BAIREN of the Chinese Academy of Sciences ; 40925012) ; 40925012) ; 40925012) ; 40925012)
源URL[http://ir.iggcas.ac.cn/handle/132A11/84576]  
专题中国科学院地质与地球物理研究所
通讯作者Liu, Caicai
作者单位1.China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Caicai,Deng, Chenglong,Liu, Qingsong. Mineral magnetic studies of the vermiculated red soils in southeast China and their paleoclimatic significance[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2012,329:173-183.
APA Liu, Caicai,Deng, Chenglong,&Liu, Qingsong.(2012).Mineral magnetic studies of the vermiculated red soils in southeast China and their paleoclimatic significance.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,329,173-183.
MLA Liu, Caicai,et al."Mineral magnetic studies of the vermiculated red soils in southeast China and their paleoclimatic significance".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 329(2012):173-183.

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来源：地质与地球物理研究所

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