regional metamorphic environment
51Geology of the North Sea — Contents 1 Tectonic structure 2 Precambrian 3 Finnmarkian, Athollian, Caledonian Orogenies …
52Alaskan mountains — ▪ mountains, United States Introduction three principal mountain groups the Brooks Range, Alaska Range, and Aleutian Range found in Alaska. The mountain ranges of Alaska give their state a rugged and beautiful terrain across its entire… …
53Jamaica — /jeuh may keuh/, n. 1. an island in the West Indies, S of Cuba. 4413 sq. mi. (11,430 sq. km). 2. a republic coextensive with this island: formerly a British colony; became independent in 1962, retaining membership in the Commonwealth of Nations.… …
54Texas — This article is about the U.S. state. For other uses, see Texas (disambiguation). State of Texas …
55Sierra Leone — Sierra Leonean /lee oh nee euhn/. /lee oh nee, lee ohn / an independent republic in W Africa: member of the Commonwealth of Nations; formerly a British colony and protectorate. 4,891,546; 27,925 sq. mi. (72,326 sq. km). Cap.: Freetown. * * *… …
56Oceanic trench — Oceanic crust is formed at an oceanic ridge, while the lithosphere is subducted back into the asthenosphere at trenches. The oceanic trenches are hemispheric scale long but narrow topographic depressions of the sea floor. They are also the… …
57Colorado Plateau — A map of the Colorado Plateau. The …
58Aberdeen — City redirects here. For other uses see Aberdeen (disambiguation) and Aberdeen City (disambiguation). Coordinates: 57°09′09″N 2°06′36″W / 57.1526°N 2.1100°W …
59Geography of Massachusetts — A portion of the north central Pioneer Valley near South Deerfield, much more rural than Springfield, in the southern part of the valley, or Boston, which is on the coast. Massachusetts, the 7th smallest state in the United States …
60Chuckanut Formation — Stratigraphic range: Early to Late Eocene …
