根据砾石统计确定红色盆地中洪积扇体的基本原理与方法

详细信息

THE FUNDAMENTALPRINCIPLE AND METHOD FOR DEFININGTHE PROLUVIAL FANS IN ASMALL RED BASIN ACCORDING TO THE STATISTICS OF GRAVELS

摘要: 作者在江西省修水县马坳小型红色盆地中，对洪积沉积物中砾石的成分、体积大小、含量及砾石产状等资料进行了系统调查工作，运用数理统计方法求出砾石百分含量、平均体积和混杂系数，并编绘它们的等值线及古流向图。经过综合分析与处理编制了洪积扇分布地质略图，基本查明了扇体的分布范围、发育特征、叠置关系及变化规律。

Abstract: The author made a systematical investigation of the composition, size,content and mode ofoccurrence of gravels in proluvium as well as the contact relationships and facies indicator ofsedimentary sequences in the small Ma’ ao red basin, Xiushui County. Then he found the con-tent, average volume and mixing coefficient using the method of mathematical statistics andconstructed the related contour diagram and paleocurrent diagram. Through an integrated analysis and treatment he finally constructed a geological sketch map showing the distribution ofthe proluvial fans and essentially ascertained the distribution range and superimposition relationof the prouvial fans and the laws of their development and evolution. This study is still in an ex-ploratory stage and some problems await further improvement and perfection.