posted on Nov, 28 2017 @ 09:25 AM
The copper is not very corroded, that is not that old. Maybe from around the forties or fifties or so. That looks like a calcium based rock, it
could have been some sort of cement that was dumped and it flowed around the transformer. Or the stone was melted by a nuclear test and ran over the
motor or transformer. A super hot fire can melt rock and it will flow.
A geologist would possibly be able to age the rock to find if it is newer or older. Remember, they do make some weird cements and used to dump excess
anywhere they desired that was close to the job.
I would expect to see much more corrosion on the copper if it was ancient. Although, we do not know how sealed in the rock it was. it could have
stopped oxydation if it was tightly sealed. But this has rounded edges, so it has been weathered. So Oxidation should have destroyed the copper in a
couple hundred years. It isn't even green throughout it appears there is evidence of a coating still on it.
But I can't say it isn't from an ancient civilization, only that it appears to be newer. If that is gold wire instead of copper, it would make what I
say irrelevant, Gold oxidizes very slow, it could then be very old.