chapter 16 environmental science
two or more metals combined
alloy
what hot, subsurface waters must contain in order to be considered hydrothermal solutions
dissolved minerals
salts left behind after evaporation
evaporites
material that bonds with impurities and separates them from molten metal during smelting
flux
a mining method used to recover gold from ancient riverbeds
hydraulic mining
a process used by mining companies to identify areas where there may be valuable mineral resources
mineral exploration
a mining method used for large ore deposits near the surface that are mined downward
open-pit mining
a water contaminate that can cause acid mine drainage
sulfuric acid
the mining method used when shallow ore deposits are located floes to earths surface
surface mining
one of the most serious consequences of coal mining
underground mine fires