Titlebook: Bitumens in Ore Deposits; John Parnell,Henryk Kucha,P. Landais Book 1993 Springer-Verlag Berlin Heidelberg 1993 Bitumen.Hydrocarbon.Kohlen

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Ursachen der psychischen Störungenhite has been reported from hydrothermal vents in the sea floor and these are associated with sulfides, particularly those of antimony. Even though the origin of graphite is still being debated, a deep-seated carbon source and metal-rich solutions appear to play a major role in the accumulation of metals in vein graphite.

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Hydrocarbons, Sulphides, and Carbonate Deposits Related to Sublacustrine Hydrothermal Seeps in the Nis oil has a carbon-14 age of 25 000 a B.P. and is a biodegraded residue with biomarkers similar to typical crude oils. There are no hydrothermal poly-nuclear aromatic hydrocarbons detectable..Present analytical results are interpreted in terms of fluid temperature at depth, nature of organic matter forming the hydrocarbons, and origin of heat.

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Introductionngkakoti 1987) and the nature of sulphate reduction in sulphide ores associated with hydrocarbons (e.g., Leventhal 1990). The roles of fluid hydro­carbons in ore metal transport and solid hydrocarbons (bitumens) in ore metal deposition have been reviewed by Manning (1986) and Parnell (1988) respecti

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Hydrocarbons and Gold Mineralization in the Hot-Spring Deposit at Cherry Hill, California. The column was programmed from –20 to 300°C and a flame ionization detector was used. All samples are dominated by an “unresolved hump” in the carbon number (C.) range from about C. to C.. Most samples have no n-alkanes and only traces of hydrocarbons in the range C.–C.. Four samples of Stage IX b

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