Which of the following describes the events of the Taconic Orogeny?
A) Closing of the marginal sea caused a volcanic arc to be thrust over the continent
B) North America collided with a microcontinent as the marginal sea continued to close
C) The sea along North America closed completely as Africa collided with North America
D) The rifting of Pangaea opened the modern Atlantic Ocean
Answer: A
You might also like to view...
Desertification is most common in tropical and subtropical areas
Indicate whether this statement is true or false.
Eutrophication is caused by ________
A) low pH B) low dissolved oxygen C) high turbidity D) mercury E) high levels of phosphorus
Which of the following statements best describes the formation of secondary magmas?
A) Decompression melting creates a mafic magma from mantle material. B) Iron-rich minerals will form in a cooling magma and leave the remaining melt with a more silicic composition. C) Partial melting of felsic rocks creates a silica-rich magma. D) Water dehydrating from a subducted plate will melt mantle material.
Mitigation is used frequently, but not always effectively
Indicate whether the statement is true or false