Posted on 11/16/2020 7:22:17 AM PST by Red Badger
... there are also layers of [datable] volcanic ash and lava. ...
One of the greatest advancements in the 'scientific research process' during my lifetime, has been the cross-matching of multiple and independent dating sources. Use of this dendrochronology to cross-check with volcanic ejecta and ice-cores and human records and fossil records and geo-magnetism ...
This, by itself, has been an amazing tool for measuring our past, both recent and deep. Yes, it is susceptible to interpretation errors and corrections deriving from improved techniques but a real advance as a tool!
A little late, but here goes:
Inverse Square Law: The intensity of light is inversely proportional to the square of the distance.
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