Gridded geology shapefiles for the United States, Canada, and Australia

These data provide geologic information, including generalized lithology, geologic age, and paleo-latitude and -longitude of geologic units, for the United States,...本数据集包含美国境内的各类地质信息，具体涵盖概括性岩性（generalized lithology）、地质年代（geologic age），以及地质单元（geologic units）的古纬度（paleo-latitude）与古经度（paleo-longitude）等内容……