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limpet
(Encyclopedia) limpet, marine gastropod mollusk with a simple, flattened, conical shell, found in cooler waters of the Atlantic and the Pacific oceans. Certain species creep over rocks, feeding on…Buch, Christian Leopold, Freiherr von
(Encyclopedia) Buch, Christian Leopold, Freiherr vonBuch, Christian Leopold, Freiherr vonkrĭsˈtyän lāˈōpôlt frīˈhĕr fən b&oomacr;kh [key], 1774–1853, German geologist and paleontologist, graduate…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…sponge
(Encyclopedia) sponge, common name for members of the aquatic animal phylum Porifera, and for the dried, processed skeletons of certain species used to hold water. Over 4,500 living species are known…Rif
(Encyclopedia) RifRifrĭf [key] or Rif Atlas, range of the Atlas Mts., NE Morocco, NW Africa, curving along the Mediterranean coast from Ceuta to Melilla. Tidighin (8,056 ft/2,455 m) is the highest…greenling
(Encyclopedia) greenling, common name for any of several species of carnivorous, spiny-finned fishes of the family Hexagrammidae, common in the Pacific Ocean, especially in the waters N of Monterey,…magnesite
(Encyclopedia) magnesitemagnesitemăgˈnəsīt [key], mineral, magnesium carbonate, MgCO3, white, yellow, or gray in color. It originates through the alteration of olivine or of serpentine by waters…Murchison Falls
(Encyclopedia) Murchison Falls, rapids on the lower Victoria Nile River, NW Uganda, 22 mi (35 km) E of Lake Albert (see Albert, Lake). The river, narrowing to about 20 ft (6 m) wide, flows through…Colorado Plateau
(Encyclopedia) Colorado Plateau, physiographic region of SW North America, c.150,000 sq mi (388,500 sq km), in Arizona, Utah, Colorado, and New Mexico, including the “Four Corners” area. It is…Columbia Plateau
(Encyclopedia) Columbia Plateau, physiographic region of North America, c.100,000 sq mi (259,000 sq km), NW United States, between the Rocky Mts. and the Cascade Range in Washington, Oregon, and…Trending
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