[Free Registration/Login may be required to access all resource tools.] How Wegener's hypothesis of continental drift was refined.

Discover Alfred Wegner's ideas relating to continental drift and seafloor spreading which are both evidence to the concept of plate tectonics.

Article describing the history of scientific theories about continental drift, and the major researchers involved in this work.

[Free Registration/Login may be required to access all resource tools.] Describes Wegener's continental drift hypothesis and his evidence for it.