Indicative significance of grain-size end-member Loess deposits typically contain fine-grained components derived from three primary sources: (1) direct wind transport and deposition, (2) aggregation-based migration or adherence of fine grains to coarser grains 54 , and (3) clay-sized fractions (<2 μm) produced by weathering and pedogenesis 55 .
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Quaternary stratigraphy of Bayan borehole in eastern Songnen Plain and its paleoclimate significance.
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