Ocean Drilling (1 jan 1968 ano – 1 jan 2000 ano)
Descrição:
A group of oceanographic institutions and U.S. Nat'l Science Foundation created a prog of ocean drilling. oceanographers had been able to collect sediment and samples of rocks from the seafloor starting from the Challenger Expedition
Adicionado na linha do tempo:
Data:
1 jan 1968 ano
1 jan 2000 ano
~ 32 years