Why do you think that the micas (flat minerals) in slate, phyllite, and schist are all parallel, or nearly so, to one another?
Why do you think that the micas (flat minerals) in slate, phyllite, and schist are all parallel, or nearly so, to one another?
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Question
Why do you think that the micas (flat minerals) in slate, phyllite, and schist are all parallel, or nearly so, to one another?
Expert Solution
Introduction.
Slate, phyllite, and schist are essentially foliated metamorphic rock types. These types of rocks are formed when they are subjected to the application of stress or pressure from the opposite directions. The foliations in these rocks are identified by the planar fabric, which is defined by the flaky or flat minerals constituting them.
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