Concentration of elements in lacustrine coals from zone A hat creek deposit no. 1, British Columbia, Canada

摘要: Abstract Coal samples from the 170-m-thick A zone of Hat Creek coal deposit No. 1 in central British Columbia were examined for major-, minor- and trace-element distribution. The is lignite/ subbituminous rank Eocene age. This study shows: (1) As, B, Br, Cl S are only elements organically associated these samples; (2) Concentration certain such as Fe, Mn Co can be related to presence or absence carbonate and/or sulphide minerals; (3) Distribution elements, (i.e. Al, Cl, Cr, Th, U Zn) follow similar patterns concentration depletion across vertical thickness Zone suggest three depositional cycles; (4) boron versus chromium, sodium, sulphur uranium coals clearly placed them a freshwater environment; (5) Rates sedimentation using Na/K ratio also (6) In resinite samples, hand-picked coals, concentrations all except As Se lower than their whole coals.