Ridge+of+rocks
71reef — reef1 /reef/, n. 1. a ridge of rocks or sand, often of coral debris, at or near the surface of the water. 2. Mining. a lode or vein. [1575 85; earlier riff(e) < D rif] reef2 /reef/, Naut. n …
72Ottawa River timber trade — Part of a series on History of Ottawa …
73reef — A dissected ridge of rocks totally or partially submerged in sea water; often of organic origin [16] …
74ledge — n. 1. Shelf. 2. Ridge of rocks …
75reef — I [[t]rif[/t]] n. 1) a ridge of rocks or sand, often of coral debris, at or near the surface of the water 2) min Mining. a lode or vein • Etymology: 1575–85; earlier riff(e) < D rif II reef [[t]rif[/t]] n. 1) naut. navig. a part of a sail that …
76reef — I. /rif / (say reef) noun 1. a narrow ridge of rocks or sand, often of coral debris, at or near the surface of water. 2. Mining a lode or vein: *It was like meeting a man who had just discovered a gold reef. –harold lewis, 1973. {earlier riff(e) …
77ledge — n. 1 a narrow horizontal surface projecting from a wall etc. 2 a shelflike projection on the side of a rock or mountain. 3 a ridge of rocks, esp. below water. 4 Mining a stratum of metal bearing rock. Derivatives: ledged adj. ledgy adj. Etymology …
78Rock cycle — rocks do not remain in equilibrium and are forced to change as they encounter new environments. The rock cycle is an illustration that explains how the 3 rock types are related to each other and how processes change from one type to another over… …
79Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
80mountain — mountainless, adj. /mown tn/, n. 1. a natural elevation of the earth s surface rising more or less abruptly to a summit, and attaining an altitude greater than that of a hill, usually greater than 2000 ft. (610 m). 2. a large mass of something… …
