Petrography data from the Oligocene-lower Langhian succession of the Arquata Scrivia area in the Tertiary Piedmont Basin (NW Italy)

This petrographic database is a compilation made to study the Oligocene-Langhian succession of the Arquata Scrivia area, consisting of different shallow to deep-water marine sedimentary units deposited in the eastern Tertiary Piedmont Basin (NW Italy). This database is unique for the studied succession, which was not priorly investigated for the petrographic content of its component units. Petrographic data supporting the samples are presented at first with their qualitative and quantitative analyses.本岩石学数据库（petrographic database）旨在研究阿尔夸塔斯克里维亚地区的渐新统-朗阶地层序列，其数据涵盖了沉积于意大利西北部第三纪皮埃蒙特盆地东部的多套浅至深水海相沉积单元。针对此次研究的地层序列，本数据库具有唯一性——此前尚无针对其各组成单元的岩石学组分开展的相关调查。本数据库首先呈现了支撑各采样样品的岩石学数据及其定性与定量分析结果。