Video adaption of a two-part slideshow presentation from the early 1980s covering the theory of plate tectonics.

Part one discusses Pangaea and the evidence supporting it, through rock analysis, fossil remains, and vertical and horizontal movement of surface drift.

Part two explains the formation of the ocean floors, development of the lithosphere (the tectonic plates), the relative youth of the ocean floors versus the age of the continents, tectonic boundaries, and volcanic activity.

#geology #volcanology #platetectonics #1980s #slideshow #vhs #earthscience #educationalvideo