Below are a couple of nice lectures about
the geology of salt.

Origin and Evolution of Allochthonous Salt Sheets
Geological society of London, September 26, 2013
[www.youtube.com]
[www.youtube.com]

Terra Infirma; What Has Salt Tectonics Ever Done For Us?
Geological society of London, December 12, 2014
[www.youtube.com]
[www.youtube.com]

Merry Christmas,

Paul H.

"The past is never dead. It's not even past."
William Faulkner, Act 1, Scene III, Requiem for a Nun (1951)