5 - GEOL 0820 Ramsey Natural Disasters Spring 2011...

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GEOL 0820 Ramsey Natural Disasters Spring, 2011 LECTURE #5: The Scientific Method: Introduction to Plate Tectonics Date: 25 January 2011 I. Review from Previous Classes equations of energy (and gravity) o PE Æ KE ± example #1: 100 meter, rocky asteroid hitting the Earth at 15 km/sec ¾ can calculate the mass (m) if you know the density of rock ¾ density of rock = 2.7 g/cm 3 ¾ therefore mass = 1.3 billion kg ¾ v = 15,000 m/s ¾ KE = 1.47 x 10 17 Joules (or, about twice that of one of the atomic bombs dropped in WW II) rocks/rock cycle o definition of a rock, craton, … o minerals as they relate to rock type ± especially for some of the hazards we will discuss in the coming weeks o three major rock types ± igneous ¾ forms from a melt ± sedimentary ¾ forms from sediments/precipitation ± metamorphic ¾ forms from solid-state transformation II. Plate Tectonics & the Scientific Method examine Plate Tectonics in the light of the Scientific Method o what is it? o
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This note was uploaded on 01/05/2012 for the course GEOL 0820 taught by Professor Ramsay during the Spring '08 term at Pittsburgh.

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5 - GEOL 0820 Ramsey Natural Disasters Spring 2011...

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