The Maritimes Basin is a Mid-Devonian to Early Permian sedimentary basin that underlies parts of the northeastern United States and Atlantic Canada.[1] It is a composite basin, meaning that it consists of many sub-basins, such as the Windsor-Kennetcook Basin of Nova Scotia. Some of these basins host important natural resources, including coal, petroleum, and minerals such as sylvite, halite, and barite. The Maritimes Basin was deposited and tectonically-modified during the final assembly of Pangea.