which type of gold deposit is found in streams
Placer mining An area well protected from the flow of water is a great location to find gold. Gold is very dense and is often found in a stream bed. Many different gold deposits are dealt with in different ways. Placer deposits attract many prospectors because their costs are very low. There are many different places gold could be placed, such as a residual, alluvial, and a bench deposit.
Mining industry of Egypt Gold mining in Upper Egypt can be traced back to predynastic times,[6] and the earliest map known in the world from the Ramesside Period dating to about 1160 BCE, shows the route to the gold mines in the Wadi Hammamat, Eastern Desert.[7] Gold mining started with alluvial workings in Egypt and was followed by shallow underground vein mining in Nubia about 1300 BCE, during the New Kingdom period.[8] The methods of working included fire-setting to weaken rocks by thermal shock, a method described by Diodorus Siculus in his Bibliotheca historica written about 60 BCE.