Question:
Which one of the following is a mafic volcanic rock?
Which one of the following is a mafic volcanic rock?
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Mafic volcanic rocks are characterized by high iron and magnesium content and low silica content, like basalt.
Updated On: Dec 4, 2025
- Dacite
- Trachyte
- Rhyolite
- Basalt
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The Correct Option is D
Solution and Explanation
Mafic volcanic rocks are those that are rich in iron and magnesium (i.e., have a relatively high content of iron and magnesium, and relatively low silica content). Among the options provided:
- Dacite is an intermediate volcanic rock (between basalt and rhyolite), rich in silica.
- Trachyte is an alkaline volcanic rock with a higher silica content.
- Rhyolite is a felsic volcanic rock, with a high silica content.
- Basalt is a mafic volcanic rock with a low silica content, rich in iron and magnesium.
Thus, the correct answer is (D) Basalt.
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