Gas rich andesitic magmas generate composite volcanoes made up of ________.
A) abundant basalt dykes and thick accumulations of low viscosity flows
B) conical shaped lava flows
C) abundant coarse pyroclastics and short, thick, viscous lava flows
D) multiple overlapping rhyolite domes rimming a central caldera
Correct Answer:
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Q48: Which one of the following best describes
Q49: What are small basaltic cones built during
Q50: Which of the following statements concerning cinder
Q54: Which best describes a caldera?
A)a small, steep-sided,
Q56: What type are the volcanoes of the
Q64: large,fairly steep-sided cones composed of lavas and
Q66: the volcanoes of southwestern Alaska and the
Q70: massive,gently sloping volcanoes built of successive,basaltic lava
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