GEOL 1330 Lecture Notes - Lecture 11: Blueschist, Metamorphic Facies, Block Diagram
20 Jul 2016
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Document Summary
Parallel alignment of mineral grains in metamorphic rocks is referred to as foliations. Oppositely directed forces acting towards each other. The horizontal component of the rock got shorter under compressional stress; horizontal shortening. Functioning to thickening the vertical component of the rock; vertical thickening. Oppositely directed forces acting away from each other. Oppositely directed forces acting parallel to one another on a surface. Change in shape or size of an object in response to an applied stress. A temporary change in shape or size that is recovered when the applied stress is removed. Plastic; a permanent change in shape or size that is not recovered when the stress is removed. Rupture; the loss of cohesion of a body under the influence of applied stress. Strike: bearing of a line defined by the intersection of the plane in question and horizontal. Dip: acute angle between the plane and the horizontal, measured perpendicular to strike.
