柴达木盆地北缘湖泊表层沉积物炭屑特征及其环境意义
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Characteristics of microcharcoal in the lake surface sediments in the northern margin of Qaidam Basin of China and its environmental significance
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图5. 炭屑“大小比”和“长圆比” |
Fig.5. Comparison of microcharcoal concentration (MC>50μm/MC<50μm)and the L/R ratio(L:sub-long grains;R:sub-round grains) |
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