« previous next »

Author Question: Draw a cross-section of an oceanic-oceanic convergent plate boundary. Show the directions of ... (Read 90 times)

plus1

  • Hero Member
  • *****
  • Posts: 676
on: Jul 15, 2018

Draw a cross-section of an oceanic-oceanic convergent plate boundary. Show the directions of relative
  plate motion. Put stars for the locations of earthquakes. Put triangles with smoke out the top for the
  locations of volcanoes. Label the trench, back arc basin, and subduction complex What will be an ideal response?



Question 2

Briefly describe what happens when divergent plate boundaries form within a continent. What will be an ideal response?


nickk12214

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 15, 2018
Answer to Question 1

See Figure 2.19a.

Answer to Question 2

High heat flow elevates the continent and a rift valley forms, with normal faults and a central valley
called a graben. Magma is intruded into fractures. As the plates diverge, basalt erupts in the rift,
creating new ocean crust. Ultimately, as the plates continue to diverge, a new ocean basin forms.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

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?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Bill Viola, Room for St. John of the Cross. Bill Viola, Room for St. John of the Cross.
Cross-arm stretch with head in forward flexion. With your arms crossed, place one hand on each ... Cross-arm stretch with head in forward flexion. With your arms crossed, place one hand on each ...
Horizontal stroking to thigh from superior to inferior. Lift tissues as hands cross over top of ... Horizontal stroking to thigh from superior to inferior. Lift tissues as hands cross over top of ...
Sagittal section of brain Sagittal section of brain
Calculus help: Show that y has three points of inflection and they all lie on... Calculus help: Show that y has three points of inflection and they all lie on...
A 230.0-mL sample of a 0.275 M solution is left on a hot plate overnight; the following morning ... A 230.0-mL sample of a 0.275 M solution is left on a hot plate overnight; the following morning ...
Video: Barriers - eye structures, digestive mucosa, respiratory mucosa & genitourinary mucosa

For a complete list of videos, visit our video library