« previous next »

Author Question: Plate A and Plate B both consist of only oceanic lithosphere. Plate A is subducting under Plate B. ... (Read 86 times)

ENagel

  • Hero Member
  • *****
  • Posts: 540
on: Jul 16, 2018
Plate A and Plate B both consist of only oceanic lithosphere. Plate A is subducting under Plate B.
 
  Why isn't Plate B subducting under Plate A? Explain you answer
  What will be an ideal response?

Question 2

Which plate contains older lithosphere, A or B? Explain how you know.
 
  What will be an ideal response?


courtney_bruh

  • Sr. Member
  • ****
  • Posts: 308
Reply #1 on: Jul 16, 2018
Answer to Question 1

Plate B doesn't subduct under Plate A because it is less dense than Plate A. Density initiates subduction and Plate A is denser than Plate B, so this is why Plate A subducts.

Answer to Question 2

Plate A is older, as it is more dense and subducting. As the plate ages, it cools, gets thicker and gets denser and starts to subduct.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Utagawa Hiroshige, Hamamatsu: Winter Scene, plate 30 from The Fifty-Three Stations of the Tokaido, ... Utagawa Hiroshige, Hamamatsu: Winter Scene, plate 30 from The Fifty-Three Stations of the Tokaido, ...
A typical TP sensor mounted on the throttle plate of this port-injected engine. A typical TP sensor mounted on the throttle plate of this port-injected engine.
The small arrows indicate the air bypassing the throttle plate in the closed throttle position. ... The small arrows indicate the air bypassing the throttle plate in the closed throttle position. ...
Plate Tectonics Plate Tectonics
A thin laser beam traveling in air strikes the surface of a glass plate at 41.2° with the ... A thin laser beam traveling in air strikes the surface of a glass plate at 41.2° with the ...
The Salter-Harris System of Classifying Growth-Plate Injuries. The Likelihood of a Permanent Growth- The Salter-Harris System of Classifying Growth-Plate Injuries. The Likelihood of a Permanent Growth-
Video: Introduction to Sickle Cell Anemia

For a complete list of videos, visit our video library