What is different between quartz and quartzite's formation processes?
A) Quartz is metamorphosed into quartzite.
B) Quartzite is formed in volcanoes.
C) Quartzite is heavily foliated, a result of forming deep within the earth.
D) Chemicals change quartzite's makeup extensively.
Answer: A
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Which part of Central Asia underwent the Soviet "Virgin Lands Campaign" of the 1950s?
A) central Kyrgyzstan B) northwestern Tibet C) southern Uzbekistan D) northern Kazakhstan E) Azerbaijan
A horizontal conduit that allows lava to flow from a volcanic vent is called a ________
A) sill B) dike C) pillow lava D) lava tube
Volcano A erupts rocks with SiO2 content ranging from 49% to 52% whereas volcano B, 100km away, erupts materials with SiO2 content of 62-68%. Which statement best characterizes these two volcanos?
A) Volcano A is probably a shield volcano with typically quiescent eruptions, whereas Volcano B is likely a stratovolcano characterized by violent, explosive eruptions. B) Both volcanos are violent, explosive volcanos that spread ash continent wide. C) Volcano A is likely to be a supervolcano with violent eruptions, whereas volcano B is probably a shield volcano with quiescent eruptions. D) Both volcanos are shield type volcanos that are characterized by quiescent eruptions.
Two layers of sediment representing one year of deposition in a lake, are called a varve.
Answer the following statement true (T) or false (F)