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Agricultural topsoils in suburban Xuchang City were analyzed to determine the concentrations of heavy metals (Mn, Cr, Ni, Cu, Pb and Zn). The contamination levels were evaluated using the geo-accumulation index, the enrichment factor and the integrated pollution index. According to the concentration and indices results, Mn, Cr and Ni exhibited non-contaminated levels and minor enrichment, with little...
Landslide is one form of geomorphic processes. According to the theory of slope geomorphic process, landslide geomorphological system is composed of units which have mass and energy exchange with the landslide body, and these units also have direct influence on the stability of the landslide body. The Landslide system consists of three subsystems: upper-slope subsystem, landslide body subsystem and...
Trace elements of sediments from the Jianghan Basin can be used as tracers of the Tree Gorges formation, but it is a prerequisite that grain size of sediments isn't the major controlling factor on trace element abundance. Research on geochemistry and grain-size composition of ZL core in the Jianghan Basin shows: correlation coefficient between trace elements abundance and the fractions of sands, silts...
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