Multiple Choice
What did the earliest continental crust resemble?
A) foreland and intracratonic basins with mature quartz- rich sandstones
B) giant protocontinents of silica- rich magmas formed from the early differentiation of Earth into crust, mantle, and core
C) basaltic rift zones like East Africa
D) andesitic island arcs like the Aleutians
Correct Answer:
Verified
Correct Answer:
Verified
Q1: As an inactive mountain belt ages, what
Q2: Rift valleys with mafic volcanics are _
Q3: When a subduction zone is established under
Q4: The_ have crust about twice as thick
Q5: Which would the Andean- type margin not
Q7: The concept of _includes the idea that
Q8: Mountainous relief is due to the rotation
Q9: What kind of crust was the Avalon
Q10: Topographically high- standing, mountainous areas generally _.<br>A)
Q11: How were the Ural Mountains (Russia) formed?<br>A)