Continental drift

50 years ago, continental drift began to gain acceptance

map of Earth
FULL OF PLATES Earth’s outer crust is composed of more than a dozen large pieces, known as tectonic plates, which bump or slide against each other.
Science News cover from April 29, 1967

Drifting theories shake up geology

Continental drift, a theory often considered amusing but rarely important, seems about to become the focus of a revolution in geology. At the least, it has already split the geological community into those who find the evidence…