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Brewer's: Metamorphic Rocks
Those rocks, including gneiss, mica-schist, clay-slate, marble, and the like, which have become more or less crystalline. Source: Dictionary of Phrase and Fable, E. Cobham Brewer,…Brewer's: Plutonic Rocks
Granites, and certain porphyries, supposed to be of igneous, but not of volcanic, origin. So called by Lyell from Pluto, the principle of elemental fire. Source: Dictionary of Phrase and…Brewer's: Jurassic Rocks
Limestone rocks; so called from the Jura; the Jurassic period is the geological period when these rocks were formed. Our oolitic series pretty nearly corresponds with the Jurassic.…Brewer's: Kilmarth Rocks
(Scotland). A pile of stones towering 28 feet in height, and overhanging more than 12 feet, like the tower of Pisa (Italy). (See Cheesewring.) Source: Dictionary of Phrase and Fable, E.…Brewer's: Bed-rock
American slang for one's last shilling. A miner's term, called in England the “stone-head,” and in America, the “Bed-rock,” the hard basis rock. When miners get to this bed the mine is…Brewer's: Cyanean Rocks
(The). The Symplegades at the entrance of the Euxine Sea. Said to close together when a vessel attempted to sail between them, and thus crush it to pieces. Cyanean means dark, and…Brewer's: Igneous Rocks
Those which have been produced by the agency of fire, as the granitic, the trappean, and the volcanic. (Latin, ignis, fire.) Source: Dictionary of Phrase and Fable, E. Cobham Brewer,…Brewer's: Inchcape Rock
Twelve miles from land, in the German Sea. It is dangerous for navigators, and therefore the abbot of Aberbrothok fixed a bell on a float, which gave notice to sailors of its whereabouts.…Brewer's: Aqueous Rocks
Rocks produced by the agency of water, such as bedded limestones, sandstones, and clays; in short, all the geological rocks which are arranged in layers or strata. Source: Dictionary of…Brewer's: Rock ahead
(A). A sea-phrase, meaning that a rock is in the path of the ship, which the helmsman must steer clear of; a danger threatens; an opponent; an obstruction. “That yonker ... has been a rock…