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concretion

(Encyclopedia)concretion, mass or nodule of mineral matter, usually oval or nearly spherical in shape, and occurring in sedimentary rock. It is formed by the accumulation of mineral matter in the pore spaces of the...

Cashel

(Encyclopedia)Cashel kăˈshəl [key] [Irish,=castle], town, Co. Tipperary, S central Republic of Ireland. ...

talus

(Encyclopedia)talus tāˈləs [key], deposit of rock fragments detached from cliffs or mountain slopes by weathering and piled up at their bases. A talus is a common geologic feature in regions of high cliffs. The ...

quartzite

(Encyclopedia)quartzite, usually metamorphic rock composed of firmly cemented quartz grains. Most often it is white, light gray, yellowish, or light brown, but is sometimes colored blue, green, purple, or black by ...

spring, in geology

(Encyclopedia)spring, in geology, natural flow of water from the ground or from rocks, representing an outlet for the water that has accumulated in permeable rock strata underground. Some of the water that falls as...

Buxton

(Encyclopedia)Buxton, town, Derbyshire, central England, on the Wye River in Peak District National Park. It is c.1,000 ft (305 m) high; the “old town” is on a hi...

Caney Fork

(Encyclopedia)Caney Fork, river, 144 mi (232 km) long, rising in central Tenn. and flowing NW to the Cumberland River. On Caney Fork, part of the Tennessee Valley Authority, are Great Falls Dam and Center Hill Dam,...

butte, in geology

(Encyclopedia)butte, an isolated hill with steep sides and a flat top, resulting from the more rapid erosion of the surrounding areas. Buttes are characteristic of the plains of the W United States. See mesa. ...

Carleton, Will

(Encyclopedia)Carleton, Will, 1845–1912, American poet, b. Hudson, Mich. He is best known for his sentimental poems of rural life, the most famous being “Over the Hill to the Poorhouse.” Among his works are F...

Shemer

(Encyclopedia)Shemer shēˈmər [key], in the Bible. 1 Owner and eponym of the hill of Samaria. 2 Founder of a clan in the tribe of Asher. Alternate forms are Shamer and Shomer. ...