Ocean Drilling (1 janv. 1968 – 1 janv. 2000)
Description:
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 ExpeditionAjouté au bande de temps:
Date:
1 janv. 1968
1 janv. 2000
~ 32 years
