Underneath the platesgreenspun.com : LUSENET : Introductory Geology, Oswego State : One Thread |
I know that the worlds surface is made up of giant plates. Whats underneath these plates? Are they floating on water? I didn't think they went deep enough for magma to be under them.
-- Paul Roddy (Paulhope@twcny.rr.com), September 23, 2002