Gold artifacts within the Balkans appear from the 4th millennium BC, corresponding to those discovered in the Varna Necropolis near Lake Varna in Bulgaria, thought by one source (La Niece 2009) to be the earliest “well-dated” find of gold artifacts. As of 1990, gold artifacts found on the Wadi Qana cave cemetery of the 4th millennium BC in West Bank were the earliest from the Levant. Gold artifacts such as the golden hats and the Nebra disk appeared in Central Europe from the 2nd millennium BC Bronze Age.
Measured concentrations of gold in the Atlantic and Northeast Pacific are 50–a hundred and fifty femtomol/L or 10–30 parts per quadrillion (about 10–30 g/km3). In common, gold concentrations for south Atlantic and central Pacific samples are the identical (~50 femtomol/L) but much less certain. Mediterranean deep waters contain barely higher concentrations of gold (one hundred–one hundred fifty femtomol/L) attributed to wind-blown mud … Read More