Mafic Magmas

question 50

Multiple Choice

Mafic magmas

• A) May contain up to about 75 percent SiO₂ by weight.
• B) Are viscous and do not flow easily.
• C) Tend to inhibit passage of gas that tries to escape through it.
• D) Result in less violent eruptions than felsic to intermediate magmas.

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Definitions:

Test-Retest Reliability

An indicator of how reliably a psychological evaluation or test produces similar results across different time periods.

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The ability to correctly quantify or assess dimensions, quantities, or capacities using instruments or techniques.

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