Glossary of volcanic terms. - University of Wisconsin Oshkosh. G. J. Hudak. 2001.
semiconformable alteration zone — GLOSSARY OF VOLCANIC TERMS A regional zone of hydrothermal alteration typically characterized by a sheet like or cloud like geometry. Semiconformable alteration zones are generally quite extensive in permeable rock units (e.g. tuffs, medium to… … Glossary of volcanic terms
Carbonate hosted lead zinc ore deposits — World wide distribution of MVT deposits, (red), clastic sediment hosted (green), and unclassified (blue) lead zinc deposits. Source: USGS Carbonate hosted lead zinc ore deposits are important and highly valuable concentrations of lead and zinc… … Wikipedia
igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary … Universalium
Chernobyl disaster — This article is about the 1986 nuclear plant accident in Ukraine. For other uses, see Chernobyl (disambiguation). Chernobyl disaster … Wikipedia
Business and Industry Review — ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… … Universalium
Hydrothermal vent — Marine habitats White smokers emitting liquid carbon dioxide at the Champagne vent, Northwest Eifuku volcano, Marianas Trench Marine National Monument Littoral zone … Wikipedia
Superior craton — in the west. The western margin extends from northern Minnesota through eastern Manitoba to northwestern Ontario.The formation of the Superior craton is best explained within the context of 2.72 2.68 Ga accretion of small continental plates and… … Wikipedia
environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations … Universalium
Mount Edziza volcanic complex — Mount Edziza, one of the main volcanoes of the Mount Edziza volcanic complex Elevation … Wikipedia
Folk music of England — Pentangle performing in 2007 Folk music of England refers to various types of traditionally based music, often contrasted with courtly, classical and later commercial music, for which evidence exists from the later medieval period. It has been… … Wikipedia
