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Led Zeppelin
(Encyclopedia) Led Zeppelin, English pop music group formed in 1968 by guitarist Jimmy Page (1944–), singer Robert Plant (1948–), bassist John Paul Jones (1946–), and drummer John “Bonzo” Bonham (…Holly, Buddy
(Encyclopedia) Holly, Buddy, 1936–59, American rock singer, songwriter, and guitarist, b. Lubbock, Tex., as Charles Hardin Holley. He performed country…pyroclastic flow
(Encyclopedia) pyroclastic flow, turbulent, fluidized mixture of rock, volcanic ash, and hot gas that moves like an avalanche away from a volcanic eruption. A pyroclastic flow may contain a mix of…taconite
(Encyclopedia) taconite, low-grade iron ore, a flintlike rock usually containing less than 30% iron. Resistant to drilling and to the extraction of its contained metal, the rock was long considered…Garden of the Gods
(Encyclopedia) Garden of the Gods, park, 770 acres (312 hectares), central Colo., near Colorado Springs; noted for its unusual, multicolored rock formations. Narrow-crested sandstone hills and ridges…music video
(Encyclopedia) music video, videotaped performance of a recorded popular song, usually accompanied by dance or a fragmentary story and sometimes employing concert footage. Typically three to five…porphyry, igneous rock
(Encyclopedia) porphyryporphyrypôrˈfərē [key], igneous rock composed of large, conspicuous crystals (phenocrysts) and a groundmass in which the phenocrysts are embedded. Some authorities consider the…slate
(Encyclopedia) slate, fine-grained rock formed when sedimentary rocks such as shale are metamorphosed by great pressure. Slate splits into perfectly cleaved, broad thin layers; this…conglomerate, in geology
(Encyclopedia) conglomerate, in geology, sedimentary rock composed largely of pebbles or other rounded particles whose diameter is larger than 2 mm (.08 in.). Essentially a cemented gravel,…boulder, in geology
(Encyclopedia) boulder, large rock fragment formed by detachment from its parent consolidated rock by weathering and erosion. In engineering and geology, especially in the United States, the term is…Trending
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