Preliminary study on light hydrocarbons in ore-forming fluids of gold and antimony deposits in southwestern Guizhou, China

METAL minerals precipitate generally from ore-forming fluid. It is suggested that organic mat-ter in ore-forming fluid is one of the best media which show the role of organic matter in oregenesis. Because mineralizing temperatures of many ore deposits exceeded the stable rangesof liquid hydrocarbons, only light hydrocarbons were preserved well in inclusions. Thus, light