Elemental concentrations in Canadian coals

摘要: Abstract The concentration of 58 elements in Byron Creek coals ( % Ro = 0.942 1 .05 ), and their 1000 °C ashes were determined using intense neutron activation plasma emission spectrometry. organic-inorganic affinities detected by the trend element versus ash content samples. Antimony, boron, bromine selenium are only that enriched these coals. higher boron one coal seam is considered to indicate this was deposited a more marine environment than other seams. Coal seams can be identified or depletion certain trace elements, such as sodium, thorium uranium. Similarity indices samples also useful tool identification. Certain for example gallium, uranium, concentrated carbominerite from roof floor within coal. Regular variation uranium may repetition units tectonically thickened