20230320 10004100 1.0 TRUE Simple Geology This vector data layer spatially represents a geological legend depicting the exposed rock outcrop and covering sediments on Antarctica. It illustrates a simplified grouping of the geological unit data for Antarctica, based on age and generalised lithology in the approximate location that the exposure occurs. This geological data was constructed using EPSG:4978 (WGS 84). It is also suitable for projection in EPSG:3031 (WGS 84/Antarctic Polar Stereographic). Smith Lyttle, B. 2022