论文部分内容阅读
本文以郑州邙山赵下峪剖面为例,研究了黄土-古土壤序列的容重及其与磁化率、粒度的关系。结果表明,容重与磁化率反映的夏季风变化有显著的正相关关系,与粗颗粒含量反映的冬季风变化有显著的负相关关系;而天然压实作用对S10以上黄土与古土壤容重的贡献可以忽略不计。所以,风成沉积的容重指标综合反映了冬季风与夏季风气候组合关系的变化。
Taking Zhaxiaoyu section of Jushan Mountain in Zhengzhou as an example, this paper studied the bulk density of loess-paleosol sequence and its relationship with magnetic susceptibility and grain size. The results show that there is a significant positive correlation between the bulk density and the summer monsoon changes reflected by the magnetic susceptibility and a significant negative correlation with the winter monsoon changes reflected by the coarse grain content. However, the contribution of natural compaction to the bulk density of loess and paleosol above S10 Can be ignored. Therefore, the bulk density indicator of the deposition of the wind comprehensively reflects the change of the relationship between the winter monsoon and the summer monsoon climate.