3h 22min, mar 8, 1955 y - Magnetic Striping Discovered
Description:
The Coast and Geodetic Survey Pioneer tows the first marine magnetometer and discovers magnetic striping on the seafloor off the west coast of the US. This is important because it proves that the seafloor is spreading, providing significant credibility to the theory of plate tectonicsAdded to timeline:
Date:
3h 22min, mar 8, 1955 y
Now
~ 69 years ago
