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Thread: Ancient Copper Supplies

  1. #1
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    Ancient Copper Supplies

    Reducing copper from it's ore, is a time honored chemistry lab, using black copper oxide, and an excess of powdered charcoal... 2 CuO + C = 2 Cu + CO2. It will happen in a campfire, if early hominids became fascinated with the beautiful colors of copper bearing rocks giving their characteristic blue/green flame test, and then allowed a wood burning fire to get to coals stage where the reducing atmosphere would yield copper pellets when the fire went out. So, the authors trace the isotopic composition of trace elements in the Balkans in ancient copper artifacts, and imply trade routes from ancient mines to chains of socially interacting groups. A little chemistry, a little archeology, a little physics. SEE:https://arxiv.org/abs/1705.05406

  2. #2
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    Nice piece of work.

    Though, I'm not sure about your idea about early hominids. This work cover human history going back about 10,000 years... not early hominids.
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  3. #3
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    Quote Originally Posted by Swift View Post
    Nice piece of work.

    Though, I'm not sure about your idea about early hominids. This work cover human history going back about 10,000 years... not early hominids.
    Swift. Ok. Probably not the best choice of words. I defer to humans... pete

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