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The regional geology of North America usually encompasses the geographic regions of Alaska, Canada, Greenland, the continental United States, Mexico, Central America, and the Caribbean. [1] The parts of the North American Plate that are not occupied by North American countries are usually not discussed as part of the regional geology.
Soon, Pangaea began to split up and North America began drifting north and westward. During the latter Jurassic, the floodplains of the western states were home to dinosaurs like Allosaurus, Apatosaurus, and Stegosaurus. During the Cretaceous, the Gulf of Mexico expanded until it split North America in half. Plesiosaurs and mosasaurs swam in ...
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This includes all geology that can also be found in the subcategories. This is a container category . Due to its scope, it should contain only subcategories .
Northward propagation of the East Pacific Rise into the North American plate initiates rifting off of the Baja California peninsula. 4 Ma Pliocene Sierra Nevada begins to rise. 3.5 Ma Pliocene The Pacific plate changes its direction of motion about 11 degrees east of its previous heading, from northwest to the present northwest by north.
Laurentia basement rocks. Laurentia or the North American Craton is a large continental craton that forms the ancient geological core of North America.Many times in its past, Laurentia has been a separate continent, as it is now in the form of North America, although originally it also included the cratonic areas of Greenland and the Hebridean Terrane in northwest Scotland.
United States geology-related lists (2 C, 57 P) Pages in category "North America geology-related lists" The following 3 pages are in this category, out of 3 total.
Age of the bedrock underlying North America, from red (oldest) to blue, green, yellow (newest). Seventy percent of North America is underlain by the Laurentia craton, [5] which is exposed as the Canadian Shield in much of central and eastern Canada around the Hudson Bay, and as far south as the U.S. states of Michigan, Wisconsin, and Minnesota.