Stories tagged plate tectonics

Alfred Wegener birthday

by Anonymous on Nov. 01st, 2009

Alfred Wegener: Greenland, 1930.
Alfred Wegener: Greenland, 1930.Courtesy Public domain
Today is the birthday of Alfred Lothar Wegener, the scientist who first developed the theory of continental drift. Wegener was born in 1880, schooled as an astronomer, and became interested in climatology and meteorology. When he noticed how the shapes of some continents fit nicely into the forms of others, (such as how South America fit into Africa), he proposed in 1915 that they had once all made up a supercontinent he called Pangaea, and later drifted apart. Similar rock strata and fossils found in coastlines of distant continents seemed to corroborate his theory, but Wegener was unable to come up with a mechanism that would cause such movement, so his theory lay dormant, mostly spurned and unaccepted until the 1950's when new geological evidence regarding plate subduction and sea-floor spreading came to light. Wegener's theory of continental drift is the basis for present-day theory of plate tectonics. Unfortunately, Wegener didn't live to see his theory gain acceptance. He died tragically sometime in late 1930 while on a meteorological expedition to Greenland.

More about Alfred Wegener

Dec
11
2004

New research reported on by a team of scientist lead by The Georgia Institute of Technology in Nature this week suggest we may have to rethink our assumptions about sea floor production at spreading ridges.

Learn more.