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petrology

(Encyclopedia) petrology, branch of geology specifically concerned with the origin, composition, structure, and properties of rocks, primarily igneous and metamorphic, and secondarily sedimentary. It…

pigeon

(Encyclopedia) pigeon, common name for members of the large family Columbidae, land birds, cosmopolitan in temperate and tropical regions, characterized by stout bodies, short necks, small heads, and…

body-marking

(Encyclopedia) body-marking, painting, tattooing, or scarification (cutting or burning) of the body for ritual, esthetic, medicinal, magic, or religious purposes. Evidence from prehistoric burials,…

Berry, Chuck

(Encyclopedia) Berry, Chuck (Charles Edward Anderson Berry), 1926–2017, American rock music guitarist, singer, and songwriter, b. San Jose, Calif. Berry is widely regarded as one of the leading…

quarrying

(Encyclopedia) quarrying, open, or surface, excavation of rock used for various purposes, including construction, ornamentation, road building, and as an industrial raw material. Rock that has been…

Black Rock Desert

(Encyclopedia) Black Rock Desert, arid region of lava beds and alkali flats, NW Nev., in Toiyabe National Forest, stretching c.70 mi (110 km) NE from Gerlach. The Jackson Mts. rise to the east; the…

John Keats: To Ailsa Rock

To -To HomerTo Ailsa Rock Hearken, thou craggy ocean-pyramid, Give answer by thy voice—the sea-fowls’ screams! When were thy shoulders mantled in huge streams? When from the sun was thy…