Q. Consider the following statements:
- Baikal rift valley is formed by a divergent plate boundary.
- Rio Grande rift is along faults in the Southwestern United States.
- Great rift valley stretches from the Middle East in the north to Mozambique in the south.
Which of the statements given above is/are correct?
Answer:
1, 2 & 3
Notes:
- The Baikal Rift Valley is formed by a divergent plate boundary, where the Amur plate is slowly tearing itself away from the Eurasian plate, and has been doing so for about 25 million years.
- The Amur plate is moving eastward at a rate of about 4 to 5 millimeters (.16 to .2 inch) a year.
- The West Antarctic Rift is a series of smaller rifts that roughly separate the two regions of Earth’s southernmost continent, West Antarctica and East Antarctica.
- The Rio Grande Rift is a series of rift valleys along faults in the Southwestern United States. The Rio Grande Rift separates the Colorado Plateau, which is generally moving in a clockwise direction, from the older part (craton) of the North American plate. The Rio Grande Rift stretches from central Colorado to the Mexican state of Chihuahua.
- Great Rift Valley stretches from the Middle East in the north to Mozambique in the south.