GSC 111 Lecture Notes - Lecture 20: Richter Magnitude Scale, Graben, Eurasian Plate

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Elastic (has a reversible change: ductile (irreversible change stressed beyond the elastic limit) [higher temperature, more ductile, fracture (break, limits of both above are exceeded) Anticline --> up old in the form of an arch (a) Asymmetrical fold --> one limb dips more steeply than the other. Brittle rocks --> sandstone, quartzite, granite, granodiorite, gneiss. Charles richter --> created the richter scale, which is used with a factor of 10 times ex. Confining stress --> confined by the rocks around it. Different disasters associated with eq --> - fires. Differential stress --> not equal in all directions. Dip --> angle between horizontal plane and inclined plane. Oldest strata in the middle to younger outside. Ductile rocks --> limestone, marble, shale, phyllite, schist. Earthquake of shangxi --> killed more than 50,000 people from living in caves in the wall and them collapsing.

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