00000nam 2200000za 4500 9.850083 CaOODSP 20230208135746 cr ||||||||||| 180115s2017 oncabd o f000 0 eng d CaOODSP eng n-cn-qu M41-11/75-2017E-PDF Knight, Ross David, 1956- Characterization of smelter dust from the mineral fraction of humus [electronic resource] / R.D. Knight and P.J. Henderson. [Ottawa] : Natural Resources Canada, 2017. 26 p. : col. charts, ill. (some col.), col. maps. Scientific presentation ; 75 Cover title. "Presented at: 6th International Symposium on Environmental Geochemistry." “This study was undertaken to determine the morphology, texture, size and abundance of smelter dust trapped in humus. Elemental mass balance indicates that this dust contributes a small fraction of the overall geochemical value of the sediment. Although emission of smelter-derived dust is likely the primary mechanism for delivery of metal to humus, the preserved particles are not the current primary residence site of metal in the humus. This suggests that, soon after deposition, weathering processes have released metals and other elements from the dust to the humus"--Provided by publisher. gccst Pollutants gccst Metals gccst Soil gccst Geology Henderson, Penelope J. Canada. Natural Resources Canada. Geological Survey of Canada. International Symposium on Environmental Geochemistry (6th : 2003 : Edinburgh, Scotland) Scientific presentation (Geological Survey of Canada) 75. (CaOODSP)9.820265 PDF 14.11 MB https://publications.gc.ca/collections/collection_2018/rncan-nrcan/m41-11/M41-11-75-2017-eng.pdf 306043