lithogeochemical and mineralogical methods for .specific criteria used for exploration for new ore may be derived from genetic models. these might . ishikawa, 1976 . sulphidic sediments may have incorporated fallout particles . mine (guha et al., 1982) vein and disseminated gold mineraliza- . titanium mineral species, as well as the mica species and carbonate com-.
major and trace element geochemistry of coals .3 dec 2015 . state key laboratory of coal resources and safe mining, china university of . an origin from silicic volcanic ash fallout [11], alkali tonsteins that . rare-metal ore deposits and thus the coals are potential raw sources of these metals. 2. . 76. 1. 22 th-k2b-2. 7. 43.7. 6.9. 93.1. 0.78. -. 2.42. 89. 0. 10 th-k2b-3.