Multiple Choice
Which of the following is the major dissolved volatile constituent in both magmas and volcanic gases?
A) carbon monoxide
B) methane
C) nitrous oxide
D) water
Correct Answer:
Verified
Correct Answer:
Verified
Q180: Magmas are formed by partial melting in
Q181: Lava flows are typically finer grained than
Q182: Vesicles are _.<br>A)cavities or bubble-shaped holes formed
Q183: Glassy rocks can form either from extremely
Q184: Olivine is an important mineral in peridotites
Q185: What are vesicles?<br>A)open voids in an igneous
Q187: The earliest formed crystals (phenocrysts)in a magma
Q188: Examine the words and/or phrases for each
Q189: _ is the dominant feldspar in basalt.<br>A)Plagioclase<br>B)Microcline<br>C)Orthoclase<br>D)Pyroxene
Q190: Rocks that consist completely of disordered ions