马尔柯夫链分析在甘肃礼县地区上石炭统东扎口组沉积相研究中的应用

The Application of Markov Chain’s Analysis in Studying Sedimentary Facies of Dongzakou Group of Later Carboniferous Epoch in Lixian County, Gansu Province

采用马尔柯夫链分析方法研究了甘肃礼县地区晚石炭世东扎口组的陆架三角洲平原分支流河道微相演化特征。应用马尔柯夫链分析方法得到的结果是,本区石炭统上段砾石质三角洲平原分支流河道的微岩相旋回的向上演化,是重复而迅速的,每次都是由粗到细的正旋回,最后演化为沼泽沉积。

The distributary channel microlithofacies evolution characteristics is studied with Markov Chain＇ s analysis method, which lies in the shelf delta plain of Dongzakou group of Later Carboniferous Epoch in Lixian county, Gansu province. In a way, the evolution to upward of distributary channel microlithofacies in shelf delta plain of Later Carboniferous Epoch in this area is repeatedly and rapidly, and every time is a normal grading change from coarse to thin, at last it evolve into marshy deposit.