Through the analysis of macro- and micro-elements and their variations with XRF at the CCY loess-soil site, Ningxia Hui Autonomous Region, we obtain a number of geochemical parameters. There is a good comparison between these chemical parameters and magnetic susceptibility, frequency dependent susceptibility, which indicates that during the paleosol formation, the climate was warm and humid with abundant precipitation and greater eluviation, while during the loess accumulation, the climate was relatively cold and arid with weak pedogenesis. And the variation of elements can indirectly reflect the change of climate and pedogenic environment during the process of loess chemical weathering. Through the research of the activities of elements in CCY profile, it was found that Holocene loess in CCY only experienced primary process of chemical weathering characterized by leaching of Ca, Na, and not reached the secondary process characterized by leaching of K.
YANG Hong-jin, HUANG Chun-chang, PANG Jiang-li, LI Yu-qin, MI Xiao-jian, ZHAO Ming
. Geochemical Characteristics of Holocene Loess-Soil Profile on Changchengyuan Loess Tableland of Ningxia[J]. SCIENTIA GEOGRAPHICA SINICA, 2010
, 30(1)
: 134
-140
.
DOI: 10.13249/j.cnki.sgs.2010.01.134
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