Iron County Record | 1936-06-04 | Page 10 | Level of Sea Sank Half Mile during the Ice Age

Level of Sea Sank Sant Half Mile During the Ice Age W WASHINGTON Once ASH I Once Once early in the great Ice age about a million years ago the level of the sea was feet lower than Ulan it is le now and the missing missIng water water wa- wa ter was piled ed high upon the c con continents n- n as ice of ot great glaciers This picture was presented to the National Academy of ot Sciences re recently recently recently re- re by Prof Irot Francis P. P Shepard University of ot Illinois geologist as 81 a result of his Investigations of ot great river-cut river canyons of the sea floor some of them feet teet below the oceans ocean's surface or about twice the depth of ot famous Grand Orand canyon In Arizona One explanation of how the they were formed Is la that the tile coasts of ot the world were raised up above their present position during the glacial period Professor Shepard considers consid consId- ers such a gigantic movement in relatively recent times limes as scarcely creditable Instead he be told the academicians that it Is much more reasonable that the sea sta level changed due to the withdrawal of water from the oceans oceana to form the great sheets of Ice that covered the land and that rivers cut the underwater canyons now being discovered ered