A micrograph dataset of terrigenous clastic rocks of Upper Devonian Lower Carboniferous Wutong Group in southern lower Yangtze

At the end of Caledonian structure, most of South China was exposed and suffered from weathering and denudation in different degrees. The Devonian transgression submerged most of the Yangtze block, and a set of terrigenous clastic rocks with similar lithology were widely deposited, which were in unconformity contact with the underlying strata. The provenance information and sedimentary environment information of this set of clastic rocks are the keys to reveal the paleogeomorphology of the lower Yangtze region at the end of Caledonian tectonic movement and the paleogeographic pattern of sedimentary lattices in the early Late Paleozoic. The basic petrological data of the Wutong group in the lower Yangtze region are scarce, and repeated basic petrological work is still in progress. In order to better share these basic petrological data, this data set uses polarizing microscope to collect images and analyze microscopic characteristics of 200 pieces of clastic rock samples from 12 sections and 12 outcrops of the upper Devonian Lower Carboniferous Wutong group in the southern part of the lower Yangtze River. At the same time, we also collected the thin section images of 12 clastic rock samples from the previous literature, a total of 212 clastic rocks The microscopic images were organized into detailed data sets. This data set contains the sampling location, stratigraphic age, rock name and characteristics of the samples. It can not only be applied to the basic geology research of Wutong group, but also be applied to the interdisciplinary research such as image intelligent recognition, and can also provide basic data services for social production.