ERTH 2415 Lecture Notes - Lecture 2: South Magnetic Pole, Bathymetry, Hypocenter

• School: Carleton University
• Department: Earth Sciences
• Course: ERTH 2415
• Professor: Jason Mah

Document Summary

Dedication j. tuzo wilson (1908 - 1993: canadian geophysicist, father of plate tectonics , visionary scientist and education, professor of geophysics. Plate tectonics: theory of plate tectonics is central to understanding the natural disasters related to the. Earth"s internal energy: earthquakes and volcanoes do not occur at random locations, most of them coincide with plate boundaries. Iron rich metallic core: outer core: liquid (both very dense, mantle: iron and magnesium (dense, magnesium and iron-rich mantle, crust (less dense, thin crust rich in silicon and oxygen. Plate tectonics: tectonic: related to the deformation forces acting on the earth"s surface. Plate tectonics supporting evidence: oceanography, magnetization patterns on seafloor, age of ocean basins, bathymetry, earthquake hypocenters and epicenters, matching of fossils and rock types across continents, magnetization patterns on the seafloor. Internal geomagnetic field due to movement of liquid iron in outer core: earth"s rotation, heat transfer by convection at the outer-inner core boundary.