Geology 101 TAMU Test 2 questions with correct answers
Buoyancy CORRECT ANSWER What causes magma to rise? Less Dense Material is forced up by a buoyant force CORRECT ANSWER What happens when less dense material is trapped below more dense material Temperature, Volatiles, and Silica CORRECT ANSWER What 3 things does Viscosity depend on? Low Viscosity CORRECT ANSWER High Temp More Volatiles Less SiO2 (*Mafic*) Flows easily (Basaltic Lava Flows) High Viscosity CORRECT ANSWER Lower Temp Less Volatiles More SiO2 (*Felsic*) Doesn't flow as easily (Andesitic Lava Flow) Basaltic Lava Flows CORRECT ANSWER Mafic Lava: Hot, low silica, low viscosity. Flows rapidly (up to 100 kn/hr) and long distances (several 100 km)
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geology 101 tamu test 2 questions with correct ans
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