GEOLOGY 1500 EXAM 2 CORRECT
100%
Magma - ANSWERis molten rock that is below the Earth's surface and retains most
of its volcanic
gases
What three components make up most magmas? - ANSWERLiquid portion, solid
portion, gaseous portion
Silicates - ANSWERmake up most igneous rocks
Quartz and K-feldspar - ANSWERare minerals that make felsic composition
Texture - ANSWERSize, shape, and arrangement of mineral grains in the sample
Phaneritic - ANSWERVISIBLE grains
Texture that helps geologists determine intrusive - ANSWERphaneritic
Geothermal gradient - ANSWERincreased temp with depth
Bowens - ANSWERentire suite of silicates minerals can form from single basaltic
magma
Partial melting - ANSWERIntermediate composition
Olivene - ANSWERlast mineral to melt in Bowens reaction
Quartz - ANSWERmelts first
Sill - ANSWERruns horizontal
pegmatitic texture - ANSWERLarge crystals that form in a fluid-rich environment late
in crystallization
Continental margins - ANSWERWhich of the following regions will primarily erupt
silica-rich lavas?
Lithification - ANSWERprocess that converts sediments to sedimentary rocks
Which environment would be likely to produce a black shale? - ANSWERSwamp
Which method of transportation will result in the best degree of sorting,
with all the particles being roughly the same size - ANSWERWIND
100%
Magma - ANSWERis molten rock that is below the Earth's surface and retains most
of its volcanic
gases
What three components make up most magmas? - ANSWERLiquid portion, solid
portion, gaseous portion
Silicates - ANSWERmake up most igneous rocks
Quartz and K-feldspar - ANSWERare minerals that make felsic composition
Texture - ANSWERSize, shape, and arrangement of mineral grains in the sample
Phaneritic - ANSWERVISIBLE grains
Texture that helps geologists determine intrusive - ANSWERphaneritic
Geothermal gradient - ANSWERincreased temp with depth
Bowens - ANSWERentire suite of silicates minerals can form from single basaltic
magma
Partial melting - ANSWERIntermediate composition
Olivene - ANSWERlast mineral to melt in Bowens reaction
Quartz - ANSWERmelts first
Sill - ANSWERruns horizontal
pegmatitic texture - ANSWERLarge crystals that form in a fluid-rich environment late
in crystallization
Continental margins - ANSWERWhich of the following regions will primarily erupt
silica-rich lavas?
Lithification - ANSWERprocess that converts sediments to sedimentary rocks
Which environment would be likely to produce a black shale? - ANSWERSwamp
Which method of transportation will result in the best degree of sorting,
with all the particles being roughly the same size - ANSWERWIND
