Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/4021
AuthorsGuo, B.* 
Zhu, R. X.* 
Roberts, A. P.* 
Florindo, F.* 
TitleLack of correlation between paleoprecipitation and magnetic susceptibility of Chinese loess/paleosol sequences
Issue Date15-Nov-2001
Series/Report no.22 / 28 (2001)
URIhttp://hdl.handle.net/2122/4021
Keywordsrock magnetism
magnetic susceptibility
Chinese loess/paleosol sequences
Subject Classification04. Solid Earth::04.05. Geomagnetism::04.05.07. Rock magnetism 
AbstractWe have conducted a detailed mineral magnetic study of loess unit 8 (L8) and paleosol unit 8 (S8) from three localities (Jingbian, Yichuan, and Duanjiapo) along a N-S transect in the Chinese loess plateau. As expected, the lowfield magnetic susceptibility (χ) has higher values in S8 and lower values in L8. Similarly, superparamagnetic particle concentrations increase in S8 with increasingly humid climates along the N-S transect, which suggests that pedogenic magnetic enhancement is related to climate. However, in S8 at Duanjiapo, χ is so low that there is no correlation between χ and the degree of pedogenesis in this loess-paleosol cycle. It therefore appears that χ is not consistently the most suitable indicator of paleoclimate in Chinese loess-paleosol sequences. Our results indicate that there are complexities in the mineral magnetic response to pedogenesis, which could invalidate interpretation of the χ record of Chinese loess-paleosol sequences in terms of paleoprecipitation.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
GRL2001_Guo.pdfmain article400.87 kBAdobe PDFView/Open    Request a copy
Show full item record

Page view(s)

57
checked on Apr 26, 2017

Download(s)

17
checked on Apr 26, 2017

Google ScholarTM

Check