1. PLATE TECTONICS EVIDENCE
SCIENTIST
THEORY
EVIDENCE
TECHNOLOGY
ALFRED WEGENER
Continental Drift: continents floated around randomly
-Fossils
-Shapes of continents
-Rocks and Glacier debris
Rock hammer
Microscope
HARRY HESS, MARIE THARP, BRUCE HEEZEN, ROBERT DIETZ
Sea Floor Spreading: New sea floor forms at mid ocean ridges
-Age of Rocks on Sea-Floor
-SONAR
-Radiometric age techniques
Various Scientists
Plate Tectonics
-Glacial Debris
-Location of Earthquakes and Volcanoes
-Rocks
-Direct Motion
-Satellites
-GPS
-seismometers
-submersibles
Summary: How plate tectonic theory was dependent on technology.