subsidence of the basin continued
51Rhine — Infobox River | river name = River Rhine caption = The Rhine is one of the most important rivers in Europe origin = Grisons, Switzerland mouth = North Sea coord|51|58|52|N|4|5|35|E|name=North Sea Rhine|display=inline,title basin countries =… …
52Mexico — /mek si koh /, n. 1. a republic in S North America. 97,563,374; 761,530 sq. mi. (1,972,363 sq. km). Cap.: Mexico City. 2. a state in central Mexico. 6,245,000; 8268 sq. mi. (21,415 sq. km). Cap.: Toluca. 3. Gulf of, Mexican, Golfo de México /gawl …
53Yellowstone National Park — Yellowstone redirects here. For other uses, see Yellowstone (disambiguation). Yellowstone National Park Grand Canyon of Yellowstone Location …
54Everglades — is also the name of a city in Collier County, Florida.The Everglades are a subtropical wetland located in the southern portion of the U.S. state of Florida, comprising the southern half of a large watershed. The system begins near Orlando with… …
55Nutbrook Canal — Parts of the canal still have water in 2006 Original owner Nutbrook Canal Proprietors Principal engineer Benjamin Outram …
56coal — coalless, adj. /kohl/, n. 1. a black or dark brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. Cf. anthracite, bituminous coal, lignite. 2. a piece of glowing, charred, or burned wood or other… …
57mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …
58Silurian Period — Interval of geologic time, 443–417 million years ago. The third period of the Paleozoic Era, the Silurian follows the Ordovician Period and precedes the Devonian. It marks the first appearance of land plants and jawed fishes. The continents were… …
59Venice — /ven is/, n. 1. Italian, Venezia. a seaport in NE Italy, built on numerous small islands in the Lagoon of Venice. 361,722. 2. Gulf of, the N arm of the Adriatic Sea. 3. a town in SW Florida. 12,153. * * * I Italian Venezia City (pop., 2001 prelim …
60Orinoco River — Major river, South America. It rises on the western slopes of the Parima Mountains along the border between Venezuela and Brazil. It flows in a giant arc through Venezuela for about 1,700 mi (2,740 km) and enters the Atlantic Ocean near the… …
