Plutonic rocks commonly exhibit pyroclastic texture while extrusive rocks commonly show pegmatitic texture. A Pegmatitic texture - Pyroclastic texture B Phaneritic texture - Aphanitic texture True

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
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Question 1
Plutonic rocks commonly exhibit pyroclastic texture while extrusive rocks commonly show pegmatitic texture.
(A) Pegmatitic texture - Pyroclastic texture
(B) Phaneritic texture - Aphanitic texture
True
(D) Phaneritic texture - Glassy texture
Question 2
The presence of migmatites in an area is indicative of deep-seated fault-zone metamorphism.
(A) True
(B) Mylonite
Cataclasite
(D) Fault breccia
Transcribed Image Text:Question 1 Plutonic rocks commonly exhibit pyroclastic texture while extrusive rocks commonly show pegmatitic texture. (A) Pegmatitic texture - Pyroclastic texture (B) Phaneritic texture - Aphanitic texture True (D) Phaneritic texture - Glassy texture Question 2 The presence of migmatites in an area is indicative of deep-seated fault-zone metamorphism. (A) True (B) Mylonite Cataclasite (D) Fault breccia
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