金海洋矿区含煤地层典型剖面沉积特征分析

为揭示研究区含煤地层沉积特征，以马营山岱马路露头剖面为研究目标，基于剖面岩性特征、古生物特征、微量元素以及不同层位岩石的粒度分析，结果表明，剖面沉积建造可分为4种沉积体系、8类沉积相类型，即浅海碳酸盐台地沉积体系、障壁潟湖潮坪沉积体系、曲流河三角洲沉积体系和河流湖泊复合沉积体系，发育有台地、潟湖、潮坪、潮道、障壁岛、三角洲、河流和浅水湖泊等类型的沉积相，含煤地层主要经历了陆表海滨岸环境—海陆过渡环境—陆相环境的转变。

Analysis on sedimentary characteristics of a typical profile on coal bearing strata in Jinhaiyang mining area

To reveal the sedimentary characteristics of coal-bearing strata in the study area，taking outcrop section of the Daima Road of Mayingshan as an example，on the base of lithological features，paleontology，trace elements，and particle size analysis of the different layers of rock，the results show that sedimentary formation of geological section can be divided into 4 types of depositional systems，8 types of sedimentary facies，namely shallow water carbonate platform sedimentary system，the barrier lagoon tidal flat depositional system，meandering river delta sedimentary system and rivers and lakes compound sedimentary system，and there exist some sedimentary facies，including platform，lagoon，tidal flat，tidal channel，barrier island，delta，shallow lakes and rivers and other types. The coal bearing strata mainly experienced multiple changes，from land surface littoral environment to transitional environment between sea and land，to the terrestrial environment.