[kabdib]

My dad attended college in the 1950s. I liked reading his old textbooks.

The geology texts that predate plate tectonics are . . . interesting. They really didn't know where volcanoes and mountains came from.

[lawkwok]

What were the prevailing theories at the time?

[8bitsrule]

Decent (shortish) summary here

https://en.wikipedia.org/wiki/Orogeny#History_of_the_concept

[kabdib]

Oh man, it's been years. I'm visiting this weekend and I'll take a whirl through those old books.