More ideas from George
GEOLOGIC TIME SCALE ( More people should understand that )

GEOLOGIC TIME SCALE Since humans can't really fathom five thousand years, you need to take this all with a grain of salt. My take on this stuff is - somewhat controversial.

Geology

Gotta love the geology joke! geologyrocks: oh-hai-thar: Ah, Geology Jokes. It’s kind of hard to see, but the first rock is a mica schist w.