Subject: Engineering geology and rock mechanics Igneous rock is a rock type that originated from the cooling of magma. Their features depend on the chemistry and the environment of which they were formed. Based on the statement given, answer the following questions. a) Differentiate the main features (texture and grain size) of the intrusive and extrusive igneous rock? b) Explain the differences of light and dark colour igneous rock in terms of their silica content. c) Relate the classification of igneous rocks to Bowen’s reaction series. d) List and explain on how to identify the two (2) important minerals present in granite.

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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Subject: Engineering geology and rock mechanics

Igneous rock is a rock type that originated from the cooling of magma. Their features
depend on the chemistry and the environment of which they were formed. Based on the
statement given, answer the following questions.

a) Differentiate the main features (texture and grain size) of the intrusive and extrusive
igneous rock?

b) Explain the differences of light and dark colour igneous rock in terms of their silica
content.

c) Relate the classification of igneous rocks to Bowen’s reaction series.

d) List and explain on how to identify the two (2) important minerals present in granite.

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