COULSON (Latest Update )
Questions with Correct Answers 100%
Verified {Grade A} - CLEMSON
Basaltic - correct answer -Most common
-forms below crust everywhere
-dry
-SiO4: 50%
- >1100' C
Andesitic - correct answer -subduction zones
-SiO2: 60%
-900' C
Rhyolitic - correct answer -wet
,-700-800' C
-SiO2: 70%
Mineral Formation in Crystallizing Magma - correct answer -
Ultramafic/mafic/intermediate
-Felsic
Ultramafic/mafic/intermediate - correct answer Discontinuous
-Olivine
-Pyroxene
-Amphibole
-Biotite
Continuous
-Calcium-rich
-Plagioclase
,-Sodium-rich
Felsic - correct answer Orthoclase
Muscovite
Quartz
Igneous Rocks - correct answer Dikes
-vertical body of skinny rock
Sills
-horizontal body of skinny rock
Laccolith
-Bubble-shaped body of rock
Texture of Igneous rock - correct answer Pegmatic
-large grains
, Phaneritic
-small grains
3 V's of volcanology - correct answer Viscosity
Volatiles
-Water
Volume
-how much magma
Pahoehoe - correct answer Ropy appearance with lava underneath
Aa - correct answer Brittle jagged appearance; vesicular
Lahar - correct answer Mudslide that can happen before eruption