Data for: Middle Cenomanian–Turonian sequence stratigraphy of central-southern Tunisia: regional and global control on depositional patterns

A petrographical study of 139 thin sections of samples representing the facies variations observed in the studied sedimentary successions. Skeletal and non-skeletal grains were classified, and the overall texture was identified following the Dunham classification (1962). A biostratigraphic analysis of ammonites and benthic and planktic foraminifera that have been extracted from 33 mudstone samples supported the sedimentary and stratigraphic analysis. These samples have been washed after treatment with diluted hydrogen peroxide and sieved into multiple fractions (from 0.2 to 1 mm). The extracted foraminifera were identified using a Leica EZ4 binocular microscope.本研究针对观测到的研究区沉积序列中的岩相变化，对139件样品薄片开展岩石学研究。对其中的骨屑颗粒与非骨屑颗粒进行分类，并依据1962年提出的邓哈姆（Dunham）分类方案确定整体结构特征。从33件泥岩样品中提取的菊石、底栖有孔虫与浮游有孔虫的生物地层分析，为沉积与地层分析提供了支撑。这些样品经稀释过氧化氢处理后清洗，并过筛分为0.2至1毫米的多个粒级组分。提取得到的有孔虫均通过徕卡（Leica）EZ4双目显微镜完成鉴定。