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对渭南阳郭黄土剖面So~L_2层段作了总有机碳(TOC)和Rock—Eval热解烃分析.建立了TOC气候变化曲线及其变化周期,与其它气候指标进行了对比.揭示了黄土剖面中与气候变化有关的两种烃类,推导并验证了古湿度公式,计算了各层段的湿度分布及其演变趋势.
The total organic carbon (TOC) and Rock-Eval pyrolysis of Soils in Loess Section of Weinan Yanguo were analyzed, and the climate change curve of TOC and its changing cycle were established, which were compared with other climatic indicators.The loess The two types of hydrocarbons related to climate change in the section are deduced and validated by the paleo-humidity formula. The humidity distribution and trend of each layer are calculated.