New Worlds of Oceanography |
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Page 31
... present level . Earlier in prehis- toric time they were even lower , possibly as low as 500 feet under the present level . At times , too , the seas have been higher than they are now , as much as 200 to 300 feet higher . The changes ...
... present level . Earlier in prehis- toric time they were even lower , possibly as low as 500 feet under the present level . At times , too , the seas have been higher than they are now , as much as 200 to 300 feet higher . The changes ...
Page 33
... present subtropical climate , such as that of Florida , into temperate zones and maybe further into polar regions . Scientists point out that the tides raised in the plastic crust of the earth as well as in the oceans by the moon's ...
... present subtropical climate , such as that of Florida , into temperate zones and maybe further into polar regions . Scientists point out that the tides raised in the plastic crust of the earth as well as in the oceans by the moon's ...
Page 51
... present methods , a scuba diver , after only one hour at 300 feet , must return to the surface and be decompressed for 7.36 tedious hours , to avoid the " bends . " Thus the amount of useful work he can produce is severely limited . If ...
... present methods , a scuba diver , after only one hour at 300 feet , must return to the surface and be decompressed for 7.36 tedious hours , to avoid the " bends . " Thus the amount of useful work he can produce is severely limited . If ...
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abyssal plains animals areas Atlantic atomic Bahamas Bathythermograph biological bioluminescent bottle buoys Bureau of Commercial Center Coast and Geodetic coelacanth Commercial Fisheries continental shelves cores creatures crust depth detection developed devices drift drilling earth engineering equipment feet fish fleets fossils fresh water gallons Geodetic Survey Geological Gulf Stream Hurricane Hunters hurricanes hydrophone Indian Ocean industry instruments International island laboratory land living locate mantle marine geology marine sciences measurements ment methods miles million minerals Mohole nuclear observations ocean floor oceanographic research operations oyster Pacific phytoplankton plankton plants problems produce Project Stormfury purse seines recent saline water salt satellite scientific scientists sea bottom sea level seawater sediments shark ships sonar sound Soviet speed station storms studies submarine surface Surtsey temperature thermocline tidal current tide tion tuna U.S. Navy undersea underwater United velocity vessels wastes waves weather whaling wind Woods Hole zooplankton