Themes in World Regional Geography Geo100 - Fall 2003 Julie Hwang Lecture #3.
Plate Tectonics, Continental Drift, Faults and Folds Chapter 7 Sections 1-4.
Plate Tectonics. What is Plate Tectonics? The Earth’s crust and upper mantle are broken into sections called plates Plates move around on top of the mantle.
Theory of Plate Tectonics Plate Tectonics Plate Boundaries Causes of Plate Tectonics.
Plate Tectonics. Earth’s Layers The Earth's rocky outer crust solidified billions of years ago, soon after the Earth formed. This crust is not a solid.
Theory of Plate Tectonics The Modern Synthesis.
NITROGEN CYCLE The movement of nitrogen from the nonliving environment into living things and back.
Plate Tectonics. Plate Tectonics and the Ocean Floor Plate tectonics – Theory that the outermost portion of the Earth is composed of plates that move.
4.1 & 4.2 Plate Tectonics. As explorers began bringing back information about the world, map makers began to notice the coastlines of continents could.
EARTH’S INTERNAL STRUCTURE AND MAGMA FORMATION PROCESSES.
Worldwide seismicity from 1 January 2007 to 1 June 2007. Source: USGS National Earthquake Information Center.
Plate Tectonics. Continental drift: An idea before its time Alfred Wegener First proposed his continental drift hypothesis in 1915 Published The Origin.