LECTURE 3 OUTLINE - GLOBAl PLATE TECTONICS (updated 09/22/97)
Instructor: Professor Barbara Romanowicz
Director of Seismological Laboratory
Office Hours: Thursday 2-4 pm , upon appointment only
475 Mc Cone Hall
GLOBAL PLATE TECTONICS
References:
Bolt, Earthquakes, Chapter 2
Press & Siever, Chapter 1,19
1.Continental Drift
Historical Background
Wegener's Theory and Observations
Paleomagnetism and reversals of the magnetic field
Rates of Convergence
Space geodetic Measurements, GPS
Convection in the Earth's mantle
2.Tectonic Plates
Definition: Lithosphere, Astenosphere
Geology of the oceans
Oceanic versus Continental Plates
Spreading Zones, Convergent Zones
Subduction Zones
Transform (Conservative) Boundaries
Hot spot and hot spot tracks
3.The global earthquake distribution
Definitions: epicenter, hypocenter
Shallow, intermidiate, deep earthquakes
Wadati-Benioff Zones
Interplate, intraplate earthquakes
Worldwide distribution of volcanoes