Essentials of Geology (13th Edition)
13th Edition
ISBN: 9780134446622
Author: Frederick K. Lutgens, Edward J. Tarbuck, Dennis G. Tasa
Publisher: PEARSON
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Question
Chapter 4, Problem 1GST
To determine
To describe: Whether all the crystals in an intrusive igneous rock are of same size.
Expert Solution & Answer
Answer to Problem 1GST
The crystallization temperature of each mineral is different. So the early formed minerals will have more time to grow larger than the late formed minerals and thereby the crystals in an intrusive igneous rock exhibits different grain size.
Explanation of Solution
The rocks which are formed by the intrusive activity of magma are termed as intrusive igneous rock. Depending on the rate of crystallization of magma the size of the crystal varies. When slow cooling occurs, the ions present in magma are able to move larger distance. Hence larger crystals that are very few in number are formed.
When rapid cooling occurs, the ions in magma will have lose the ability to move. As a result, they combine with each other and forms small intergrown crystals.
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Chapter 4 Solutions
Essentials of Geology (13th Edition)
Ch. 4.1 - Prob. 1CCCh. 4.1 - Prob. 2CCCh. 4.1 - Prob. 3CCCh. 4.1 - Prob. 4CCCh. 4.2 - Prob. 1CCCh. 4.2 - Prob. 2CCCh. 4.2 - Prob. 3CCCh. 4.2 - Prob. 4CCCh. 4.3 - Prob. 1CCCh. 4.3 - Prob. 2CC
Ch. 4.3 - Prob. 3CCCh. 4.3 - Prob. 4CCCh. 4.4 - Prob. 1CCCh. 4.4 - Prob. 2CCCh. 4.4 - Prob. 3CCCh. 4.4 - Prob. 4CCCh. 4.4 - Prob. 5CCCh. 4.5 - Prob. 1CCCh. 4.5 - Prob. 2CCCh. 4.5 - Prob. 3CCCh. 4.5 - Prob. 4CCCh. 4.6 - Prob. 1CCCh. 4.6 - Prob. 2CCCh. 4.6 - Prob. 3CCCh. 4.7 - Prob. 1CCCh. 4.7 - Prob. 2CCCh. 4.7 - Prob. 3CCCh. 4.8 - Prob. 1CCCh. 4.8 - Prob. 2CCCh. 4.8 - Prob. 3CCCh. 4.9 - Prob. 1CCCh. 4.9 - Prob. 2CCCh. 4 - Prob. 1GSTCh. 4 - Prob. 2GSTCh. 4 - Prob. 3GSTCh. 4 - Prob. 4GSTCh. 4 - Prob. 5GSTCh. 4 - Prob. 6GSTCh. 4 - Prob. 7GSTCh. 4 - Prob. 8GSTCh. 4 - Prob. 9GSTCh. 4 - Prob. 10GSTCh. 4 - Prob. 11GST
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