GEOL 240Lg 1st Edition Lecture 2Outline of Last Lecture I. Definition of scienceII. What is a “Paradigm”?III. Who is George Mendel? IV. Introduction to what are Plate Tectonics and Earthquakes V. 1960’s Revolution in Earth Science VI. Defining edges of Tectonic Plates VII. Fault PlanesOutline Current Lecture 1. Transform Boundaries2. San Andreas Fault3. Mid-Oceanic Ridge4. Transform Faults5. Continental Lithosphere, Oceanic Lithosphere, Continent- Continent CollisionCurrent LectureI. Transform Boundariesa. Transform Fault connects spreading ridge segments. They are only active earthquakes between spreading ridge segments.b. All transform faults are SS faults but not all strike-slip faults are transform faults.II. Mid-Oceanic Ridgea. Earthquakes along a mid-oceanic ridge crest (Note that earthquakes occur only along the ridge crest and transforms between ridge segments) III. San Andrea Fault connects with Gulf of California… it is a transform fault. IV. Continental lithosphere these are highly variable. For example in thickness and much are much thicker than the oceanic lithospheres. They are up to 100km in thickness, relatively buoyant (floats) Hint: Hot things are buoyant V. Oceanic lithospheres= 100km in thickness, are relatively dense … they are dense because they are = to metals. Hint: Cold things are denseVI. Continent-Continent Collision: examples of these are huge massive mountains. An example of this is India VS
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