« previous next »

Author Question: Plate A and Plate B both consist of only oceanic lithosphere. Plate A is subducting under Plate B. ... (Read 152 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?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Epiphyseal Usually occurs through the growth plate where the matrix is undergoing calcification and Epiphyseal Usually occurs through the growth plate where the matrix is undergoing calcification and
Muscle fibers consist of single, elongated, multinucleated cells that arise from the fusion Muscle fibers consist of single, elongated, multinucleated cells that arise from the fusion
Carefully check the hose between the MAF sensor and the throttle plate for cracks or splits that ... Carefully check the hose between the MAF sensor and the throttle plate for cracks or splits that ...
Different patterns of a@ and b@hemolysis on a blood agar plate: (a) a@hemolysis: viridian ... Different patterns of a@ and b@hemolysis on a blood agar plate: (a) a@hemolysis: viridian ...
Distribution of Modern Day Oceanic Plateaus and Fragments Distribution of Modern Day Oceanic Plateaus and Fragments
Plate Tectonics Plate Tectonics
Video: Simple Diffusion - gases and nonpolar compounds transport

For a complete list of videos, visit our video library