"...excellent coverage of principal ideas."
JOURNAL OF GEOLOGICAL EDUCATION
Comprehensive program on the development of the modern theory of an active, restless earth
and its interior structure. Traces Wegener's ideas on continental drift to the discoveries
of the mid- ocean ridges, paleomagnetism, abyssal trenches, sea-floor spreading, transform
faults and the global pattern of shifting tectonic plates. 15 minutes
