Placer mining involves washing stream gravel to separate and save free gold particles. Usually a placer mine must discharge excess effluent water, which contains some residual suspended fine silt and clay particles, from a settling pond, back...
Although the first claims in the Tombstone area were staked in 1901, most exploration to date has focused on high grade veins, skarns and uranium deposits, and pre-dates the search for bulk tonnage gold or shale-hosted nickel. Early...
This map was compiled from data obtained as a result of an aeromagnetic survey carried out by Fugro Airborne Surveys using a Cessna Caravan (registration C-FZLK) aircraft. A 0.005 nT sensitivity split-beam cesium vapour magnetometer was mounted...
New geochemical data from re-analysis of archived stream sediment samples have been assessed using weighted sums modeling and catchment basin analysis as described in the methodology report that accompanies this map (YGS Open File 2015-10). Both...
Geological map (1:50 000 scale) of the Two Beaver Lake map area, eastern Ogilvie Mountains, central Yukon (NTS 116 A/11) including geological cross-sections and mineral occurrences.
This report is one of a series (Groat et al. 1994, 1995a, 1995b, 1996) on the results of research on granitic pegmatites in northwestern Canada. These unusual rocks are of scientific and economic interest for the following reasons:1) Rare...
New geochemical data from re-analysis of archived stream sediment samples have been assessed using weighted sums modeling and catchment basin analysis as described in the methodology report that accompanies this map (YGS Open File 2015-10). Both...
The layered rocks in this area originated as continental shelf sediments overlain by volcanic arc successions. Now called Yukon-Tanana Terrane, they tectonically over-rode the western edge of ancient North America beginning in Middle Jurassic...