hydrothermal origin

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• 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

• Hydrothermal synthesis — includes the various techniques of crystallizing substances from high temperature aqueous solutions at high vapor pressures; also termed hydrothermal method . The term hydrothermal is of geologic origin. Geochemists and mineralogists have studied …   Wikipedia

• hydrothermal system — GLOSSARY OF VOLCANIC TERMS The system comprising the rocks, fluids, vapors, and conduits associated with hydrothermal activity. In general, hydrothermal systems have the following components: 1) a shallow magma chamber or cooling intrusion… …   Glossary of volcanic terms

• Abiogenic petroleum origin — is a largely abandoned hypothesis that was proposed as an alternative to theory of biological petroleum origin. It was relatively popular in the past, but it went largely forgotten at the end of the 20th century after it failed to predict the… …   Wikipedia

• Rare earth element — Rare earth ore, shown with a United States penny for size comparison These rare …   Wikipedia

• Krutovite — Infobox mineral name = Krutovite category = Mineral boxwidth = boxbgcolor = imagesize = caption = formula = nickel (nickel diarsenide , NiAs22) molweight = color = grayish white habit = system = Isometric Diploidal (2/m 3) twinning = cleavage =… …   Wikipedia

• Marrite — General Category Sulfosalt mineral Chemical formula PbAgAsS3 Strunz classification 02.JB.15 Crystal symmetry Monoclinic 2 …   Wikipedia

• Bruce Series — ▪ geology       division of Precambrian rocks in North America that is well developed northeast of the Lake Huron region (the Precambrian began about 3.8 billion years ago and ended 540 million years ago). The Bruce Series is the lowermost of the …   Universalium

• Fluorite — General Category Halide mineral Chemical formula CaF2 …   Wikipedia

• Freieslebenite — is a rare sulfide mineral of antimony, lead and silver with formula AgPbSbS3 and molecular weight of 533.02 g/mol. It is an opaque non fluorescent mineral which has a hydrothermal origin. It is metallic, with a specific gravity of 6.3 and a Mohs… …   Wikipedia

• Atheneite — is a rare metallic compound commonly associated with palladium–gold deposits. It was discovered in 1974 by A.M. Clark, A.J. Criddle, and E.E. Fejer in the Minas Gerais mine in the town of Itabira, Brazil (Clark, 1974). Atheneite was also found in …   Wikipedia