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Questions and Answers
What are the three major components of magma?
What are the three major components of magma?
- Crust, mantle, core
- Silica, oxygen, iron (correct)
- Magma, lava, rock
- Felsic, intermediate, mafic
Which are the four basic igneous compositions?
Which are the four basic igneous compositions?
- Lava, ash, cinder, scoria
- Felsic, intermediate, mafic, ultramafic (correct)
- Volcanic, plutonic, pyroclastic, tuff
- Granite, basalt, obsidian, pumice
What are the six major igneous textures?
What are the six major igneous textures?
- Granular, smooth, rough, shiny, glassy, porous
- Coarse, fine, medium, crystalline, amorphous, fibrous
- Phaneritic, aphanitic, porphyritic, glassy, vesicular, pyroclastic (correct)
- Pegmatitic, seriate, equigranular, hypidiomorphic, xenomorphic, poikilitic
How can magmatic differentiation generate a magma body with different mineralogy from its parent magma?
How can magmatic differentiation generate a magma body with different mineralogy from its parent magma?
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What can generate a basaltic (mafic) magma through partial melting of the mantle rock peridotite?
What can generate a basaltic (mafic) magma through partial melting of the mantle rock peridotite?
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