Author Question: What is the name the physical feature in this diagram, marked with an arrow? A) Submarine canyon ... (Read 27 times)

RYAN BANYAN

  • Hero Member
  • *****
  • Posts: 563
What is the name the physical feature in this diagram, marked with an arrow?
 
  A) Submarine canyon
  B) Deep-ocean basins
  C) Abyssal plains
  D) Rift valley

Question 2

Assume the Mid-Continental Rift were to reactivate and divergence were to occur. What sequence of events would unfold as rifting began and what would eventually happen to the landmass?
 
  What will be an ideal response?



Zebsrer

  • Sr. Member
  • ****
  • Posts: 284
Answer to Question 1

Answer: D

Answer to Question 2

Answer: The continent would stretch and thin. Soon, faulting and fracturing would occur as a large rift valley bounded by normal faults was created. Decompression melting would generate magma, which would migrate upward through the fractures to create sheeted dikes and flood basalts. Water would also move along these fractures, creating a chain of lakes. Eventually, the entire floor of the rift valley would be covered by basalts, and the valley would open up and let in the sea, completing the separation of the landmass.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

For a complete list of videos, visit our video library