Large Crystals Found in a Fine-Grained Groundmass Can Indicate A(n)____

question 54

Multiple Choice

Large crystals found in a fine-grained groundmass can indicate a(n) ____.

• A)origin from a magma with an early intrusive phase followed by an extrusive phase
• B)origin from a magma with an early extrusive phase followed by an intrusive phase
• C)rock of mixed volcanic-plutonic origin
• D)intrusive slow cooling process
• E)origin from a magma with an early intrusive cooling phase followed by an extrusive cooling phase

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Definitions:

Spirometer

An apparatus that measures the volume of inhaled and exhaled air.

Rinne Test

A hearing test that uses a tuning fork to compare air conduction hearing with bone conduction hearing.

Weber Test

A quick screening test for hearing that involves placing a tuning fork on the center of the forehead to help diagnose unilateral (one-sided) hearing loss.

Sigmoidoscopy

An inspection of the sigmoid with an instrument.