| have very contrasting Clarke values MA (like Fe, Cu and Au) can be compared on geochemical basis, with...been able to find a single case where a giant deposit would be a unique, one-of-akind product. In all...soon progressed to shallow depth, resulting in a mine. The numbers of mines and intensity of ACCEPTED...of high demand for the few “antiquity” metals (Au, Cu, Sn, Ag, later Fe) in time of state- and empire-building...colonialism, modern economic booms (Belich, 2009). Active mine numbers and sizes skyrocketed during two World Wars |
