%0 Journal Article
%T 山西沁水盆地东北部太原组沉积序列及环境演化*<br>Sedimentary succession and environment evolution of the Taiyuan Formation in northeastern Qinshui Basin, Shanxi Province
%A 宋慧波
%A 李亚南
%A 于振峰
%A 刘顺喜
%A 胡斌
%A 李紫源
%J 电子科技大学学报
%D 2018
%R 10.7605/gdlxb.2018.04.045
%X 山西沁水盆地东北部上石炭统—下二叠统太原组含有丰富的煤与煤层气资源,在昔阳黑土岩村一带有良好的露头剖面。以黑土岩村剖面为主要研究对象,结合邻区部分钻孔资料,对石炭—二叠系太原组的岩石特征、沉积构造、化石组成及沉积序列类型进行了详细分析。取得如下成果: 在研究剖面中识别出有障壁和无障壁海岸以及三角洲<em>3</em>种沉积体系,<em>5</em>种沉积相、<em>3</em>种亚相和<em>5</em>种微相,并在太原组中部层段发现混积潮坪沉积;建立了<em>9</em>种沉积序列类型及其古环境分布模式,并基于沉积序列的垂向变化规律,提出了本区太原组的沉积环境模式,进而简要论述了太原组自下而上从障壁岛—潟湖—潮坪到浅海—潮坪,最后到三角洲的沉积环境演变过程。<br>The Upper Carboniferous-Lower Permian Taiyuan Formation in northeastern Qinshui Basin of Shanxi Province contains abundant coal and coalbed methane resources,and well outcrops in the area of Heituyan village in Xiyang County. Based on the researches of the outcrop section and some nearby exploration data,this paper detailedly analyzes the lithologic characteristics,sedimentary structures,fossil composition,carbonatite microfacies and sedimentary succession types of the formation and obtains the results as follows: Three kinds of sedimentary systems(including barrier shore,open shore and delta),five kinds of sedimentary facies,three kinds of sedimentary subfacies and five kinds of carbonate microfacies were recognized,and the mixed tidal flat deposits in the middle part of the Taiyuan Formation were found in this area. On this basis,nine types of sedimentary succession and their palaeoenvironment model were suggested. According to the vertical change tendency of sedimentary successions,this paper proposes the sedimentary environment model of the Taiyuan Formation and briefly discusses the evolution process of depositional environments,<em>i.e.</em>,from the bottom to top,ranging from barrier island-lagoon-tidal flat to shallow sea-tidal flat,and then to delta environments
%K 沁水盆地
%K 上石炭统-下二叠统
%K 太原组
%K 沉积相
%K 沉积环境
%K &lt
%K br&gt
%U http://manu22.magtech.com.cn/gdlxb/CN/abstract/abstract9796.shtml