I too was initially confused about the references to millions of years ago. At first I thought this was going to be used to suggest this was some extremely ancient human or alien structure, but finally they said it concerned something between 4 and 6 thousand years ago. I’m glad they have found a lot of others potential sites of interest to explore.
finally they said it concerned something between 4 and 6 thousand years ago.
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Based on bits of detritus they could carbon date. But that does not square with the orientation of the feature which is oriented to the stars of 150 million years ago - as I read it.
Those sorts love to keep the status quo and will say anything, attach any number, etc, to maintain it. For them its simply impossible that any civilization could have existed 150 million years ago - because as we all ‘know’ that in 4.5 billion years the Earth is said to have been around, only one civilization could have arisen - ours.
If our civilization ended now, in 20,000 years there would be no detectable trace. Keep in mind that, until a decade ago, these same people said there were no civilizations prior to the Sumerians - which we now know to be false having found Gobekli Teppi at 12,500 years before present. So how many could have arisen in 150,000,000 years and have left nothing to be found except some stones and earth works? Stones and earthworks get repurposed all the time - so its surprising they found this one.