Posted 6/14/2014 12:42 (#3918394 - in reply to #3918255) Subject: RE: Another stake in the heart of Global Warming..
39.48, -82.98
Seafloor spreading means magma is constantly reaching seawater. That has gone on since there has been oceans. Those"canyons" were not formed by rushing water but by the mmovement of tectonic plates.