第四纪沉积环境重建中多元统计方法的应用——以周口店新发现的更新世洞穴堆积为例

APPLICATION OF THE MULTIFACTORIAL STATISTICS TO THE RECONSTRUCTION OF THE QUATERNARY SEDIMENTARY ENVIRONMENT

粒度分析是沉积环境分析的重要手段，其中样品预处理及粒度分析实验方法的选择是粒度分析资料整理成功的关键因素。粒度分析资料的常规整理是沉积环境分析的基础，而粒度分析的多元统计法整理是计算机时代沉积环境分析的必然。太平山北坡东地点为周口店近年来新发现的最为完整的早更新世晚期洞穴堆积剖面，对该剖面沉积物的粒度特征进行因子分析，不仅探讨了该区第四纪早期沉积环境，而且为沉积环境分析由定性走向定量提供一个良好实例。

The size analysis is an important method in discussing sedimentary environment. There are two important factors in arranging the size information. One is to preprocess samples , and the other is to chose the experiment method. The general arrangement of the information is the basis of analyzing the sedimentary environment, and now the arrangement by a multifactorial statistical method is necessary. The eastern cave at the Taipingshan north slope is the most complete early Pleistocene cave section in Zhoukoudian. The sedimentary character is analyzed according to the size analysis method. Not only the early Quaternary sedimentary environment in the area is discussed accurately, but also one good example in quantitative sedimentary environment analysis is presented.