This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The volcanic islands visible here formed as a result of a mantle plume. Researchers working on ... (Read 97 times)

jilianpiloj

  • Hero Member
  • *****
  • Posts: 521
on: Jul 16, 2018
The volcanic islands visible here formed as a result of a mantle plume.
 
  Researchers working on these volcanic islands have collected basalt samples for potassium-argon dating to determine when these islands formed Volcanic Island A has been dated to 7.6 million years ago. Volcanic Island C dates back to 3.4 million years ago and is 200 km away from A. Using the equation Rate = Distance/Time, calculate the rate of plate motion for this region.
  A) 4.2 km/million years
  B) 47.6 km/million years
  C) 102.3 km/million years
  D) 26.3 km/million years

Question 2

________ weathering is when physical forces break solid rock into smaller sediments.
 
  A) Mechanical
  B) Chemical
  C) Spheroidal
  D) Differential


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jessofishing

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: A


jilianpiloj

  • Hero Member
  • *****
  • Posts: 521
Reply #2 on: Jul 16, 2018
Thank you :)


jessofishing

  • Sr. Member
  • ****
  • Posts: 329
Reply #3 on: Jul 16, 2018
Happy to help you


« previous next »
 

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Volcanic plateaus (red) and impact basins (blue) dominate this topographic map of Mars Volcanic plateaus (red) and impact basins (blue) dominate this topographic map of Mars
(A) The levels of the spinal cord and spinal nerves. (B) Photograph of the spinal cord as it descend (A) The levels of the spinal cord and spinal nerves. (B) Photograph of the spinal cord as it descend
Researchers have found that science instruction can be quite effective in grades 4 to 7. Researchers have found that science instruction can be quite effective in grades 4 to 7.
Glacial deposits overlain by marine carbonates formed in very warm water Glacial deposits overlain by marine carbonates formed in very warm water
Mr. jackson's lab result - Chest X-Ray, CT Scan of Brain, and Cerebral Angiogram Mr. jackson's lab result - Chest X-Ray, CT Scan of Brain, and Cerebral Angiogram
Light micrograph of a live diatom, with chloroplasts visible through the shell Light micrograph of a live diatom, with chloroplasts visible through the shell
Video: Mechanisms of capillary exchange

For a complete list of videos, visit our video library