This topic contains a solution. Click here to go to the answer

Author Question: Mafic magma at a temperature of 1200C intrudes into felsic continental-crust rocks 15 km below the ... (Read 28 times)

NguyenJ

  • Hero Member
  • *****
  • Posts: 516
Mafic magma at a temperature of 1200C intrudes into felsic continental-crust rocks 15 km below the surface. Will the granite melt? If so, what will happen to the resulting magma? Use information presented in the chapter to support your answer.
 
  What will be an ideal response?

Question 2

There is an urgent need to improve the recycling strategy for e-wastes because
 
  A) there is no profit to be made from the materials.
  B) they contain toxic but valuable materials, and U.S. recyclers tend to outsource to China.
  C) it has been easier and safer to dispose of e-wastes in landfills.
  D) e-wastes contain large amounts of radioactive materials.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lolol

  • Sr. Member
  • ****
  • Posts: 330
Answer to Question 1

Figure 4.18 is useful for answering these questions. At 15 km below the surface, granite completely melts into granitic magma at about 705oC, which is much less than the temperature of the intruding mafic magma. However, this rising magma may not make it to the surface because water will escape as gas as the pressure decreases and this causes an increase in the melting temperature.

Answer to Question 2

B




NguyenJ

  • Member
  • Posts: 516
Reply 2 on: Jul 16, 2018
Excellent


vickyvicksss

  • Member
  • Posts: 351
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

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

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

For a complete list of videos, visit our video library