Geological Orientation Survey for Uranium of the Montreal River Area, District of Algoma, Ontario

摘要

Detailed geochemical studies were carried out in 1975 to determine the distribution and dispersion patterns of uranium, the base metals, and associated elements in bedrock, surficial overburden and lake and stream waters and sediments in the District of Algoma, Ontario. Sampled media were selectively analyzed by a variety of techniques, for Zn, Cu, Pb, Ni, Co, Ag, Mn, As, Mo, Fe, Hg, Sr, Ba, Ti, Al, Ca, Mg, K, V, Cr, Be, La, Y and U. Multielement regional distribution patterns within lake and stream waters and sediments were indicative of uranium mineralization associated with diabase dykes, chemical variations in bedrock lithologies, and differences in aquatic physiochemistry. A definite value was found in interpreting hydrogeochemical dispersion patterns in terms of elemental assocations based on trace and minor element assemblages outlined for known mineralization, bedrock lithologies and different aquatic physicochemistry within the study area. Reconnaissane exploration for combined uranium and base metal mineralization can be accomplished most efficiently utilizing lake sediments as the sample media with supporting data from lake waters. Detailed exploration for uranium mineraization can be carried out employing lake waters and sediments and/or stream waters and sediments. Lake and/or stream sediments are best used for detailed base metal exploration. (Atomindex citation 12:609799)