What a thoroughly fascinating article on several subjects that I knew nothing about, e.g.:
1. What Clovis points are - heard the term, just never knew what was distinctive.
2. Optical Stimulated Luminescence Dating - to this PhD physicist I am amazed that it actually works
3. The Balcones Fault and Escarpment - forming the boundary between the coastal plains and the Texas Hill Country above Austin and San Antonio, places I know well, but ...
4. The Gault Archaelogical Site
SC, thanks for coming back and keeping this going
Thanks AJ for the kind remarks. Optical Stimulated Luminescence Dating is part of a broader family of surface dating, also includes cosmic ray exposure dating (I’d like to see that done, if appropriate, to the Ramesseum and the Great Sphinx), thermoluminescence (often used on ceramics, such as pottery), and infrared stimulated luminescence.
What is OSL dating?
https://www.baylor.edu/geology/index.php?id=868084
https://en.wikipedia.org/wiki/Luminescence_dating
Cosmic-ray Exposure Ages of Meteorites
http://adsabs.harvard.edu/abs/2003TrGeo...1..347H
Cosmogenic nuclide dating
http://www.antarcticglaciers.org/glacial-geology/dating-glacial-sediments-2/cosmogenic_nuclide_datin/