西南三省一市1：50万碳酸盐岩空间分布数据(2015年)

本数据集包含了西南三省一市1：50万碳酸盐岩空间分布数据(2015年)，为矢量数据。数据源于四川、贵州和云南区域地质调查队。首先西南三省一市1:50万地质图进行坐标纠正，将地质图转换到统一坐标系下，经过在ARCGIS下进行编码、矢量化、编辑修改、建立拓扑关系，形成西南三省一市行政区的1:50万地质图；提出三省一市含碳酸盐岩地层数据，然后对含碳酸盐地层数据进行二次加工形成西南三省一市的碳酸盐岩空间分布数据。This dataset contains 1:500,000-scale spatial distribution data of carbonate rocks (2015) in the three provinces and one municipality of Southwest China, which is vector data. The data is sourced from the regional geological survey teams of Sichuan, Guizhou and Yunnan. First, coordinate correction was conducted on the 1:500,000-scale geological maps of the three provinces and one municipality in Southwest China to convert them into a unified coordinate system. Then, through encoding, vectorization, editing and modification, and topological relationship establishment in ArcGIS, the 1:500,000-scale geological maps of the administrative regions of these three provinces and one municipality were formed. Next, carbonate-bearing stratigraphic data of the three provinces and one municipality were extracted, followed by secondary processing on the carbonate-bearing stratigraphic data to generate the final spatial distribution data of carbonate rocks in the three provinces and one municipality of Southwest China.