Which of the following best describes seamounts and islands of the deep ocean basins?
A) piles of basaltic lava flows built up from the ocean floor by multiple, summit and flank eruptions
B) andesitic pyroclastic rocks submerged when the mountains sank below sea level
C) domed gabbro intrusions and massive, submarine, rhyolitic, pyroclastic cones
D) huge granite batholiths intruded beneath the ocean floor
Correct Answer:
Verified
Q12: Which kind of eruptive activity is most
Q13: The average composition of rocks comprising a
Q14: Which region has the greatest concentration of
Q15: Which type of basaltic lava flow has
Q16: _is a major dissolved volatile constituent in
Q18: Which statement about the May, 1980, eruption
Q19: Mount St. Helens is _ .
A)an explosive
Q20: Kilauea and Mauna Loa are _.
A)explosive, rhyolitic
Q21: Why do magmas rise toward Earth's surface?
A)Most
Q22: The Icelandic volcanoes are related to plate
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