NDLI: Lack of correlation between paleoprecipitation and magnetic susceptibility of Chinese Loess/Paleosol Sequences

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Lack of correlation between paleoprecipitation and magnetic susceptibility of Chinese Loess/Paleosol Sequences

Content Provider	Semantic Scholar
Author	Zhu, Rixiang Roberts, Andrew Peter Florindo, Fabio
Copyright Year	2001
Abstract	We 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 low- field magnetic susceptibility (χ) has higher values in S8 and lower values in L8. Similarly, superparamagnetic particle concentrations increase in S8 with increasingly humid cli- mates 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 suit- able indicator of paleoclimate in Chinese loess-paleosol se- quences. 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.
Starting Page	4259
Ending Page	4262
Page Count	4
File Format	PDF HTM / HTML
DOI	10.1029/2001GL013290
Volume Number	28
Alternate Webpage(s)	http://people.rses.anu.edu.au/roberts_a/AR_Publications/054.%20Guo%20et%20al.%20GRL%202001.pdf
Alternate Webpage(s)	https://doi.org/10.1029/2001GL013290
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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