01039agm a2200277u 4500 994454360102311 20260227104057.0 mrrcaaad 830221s1979 cau024u 0mleng d (TU)000445436UTK01 470107 (OCoLC)09239455 TKN TKN tknk GC11.2 .E9 GC11.2.E9 Evolution of an ocean [motion picture] / BBC-TV/Open University. Solana Beach, Calif. : University Media, 1979. 1 film reel (24 min.) : sd., col. ; 16 mm. + 1 guide. Examines modern techniques which enable scientists to reconstruct the evolution of the size of the ocean in the geological past, including geophysical development and changes in current circulation and world-wide sea level. Oceanography. Sea-floor spreading. British Broadcasting Corporation. Television Service. Open University. primo 50 50