RESOURCES & ENVIRONMENT
CH. 3. INTERNAL
ENERGY OF THE EARTH
Volcanic clouds in Iceland (April 14, 2010)
http://inthepark.egloos.com/4727911
3-1. PLATE TECTONICS
3-1-1. Plate Tectonics?
Unified theory of explaining (all) the
geological processes (or phenomena)
with the dynamics (motion) of the plates
(on the surface of the Earth)
(tectonics from tectonicus, meaning
“pertaining to building”)
3-1-2. Histories
•
•
•
Theory of continental drift:
• 16C Abraham Ortellius
• 17C Francis Bacon
• 19C Antonio Snider-Pellegrini
• 1912 Alfred Wegener (1880-1930) –
scientifically established the theory
Theory of sea-floor spreading
• Early 1960s, Robert S. Dietz , Harry H. Hess
Mantle convection
• 1928 Arthur Holmes
Evidences of continental drift –shape of the continents
Evidences of continental drift –fossils
Evidences of continental drift – rocks
http://www.indiana.edu/~g103/G103/week11/week11.htm
Evidences of sea floor spreading – geomagnetic reversal
http://www.indiana.edu/~geol116/week7/week7.htm
3-1-3. Plates & Plate Boundaries
• Boundaries
• Convergent:
• Divergent
• Transform (or Conservative)
http://picsdigger.com/keyword/transform%20plate%20boundary/
http://nieblog.projo.com
http://sideshow.jpl.nasa.gov/mbh/all/images/global.jpg
http://www.uwsp.edu/geo/faculty/lemke/geog101/lecture_outlines/18_plate_tectonics.html.