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

Author Question: What two types of volcanic features result from volcanism above a mantle plume? How are hot spots ... (Read 84 times)

cdr_15

  • Hero Member
  • *****
  • Posts: 546

What two types of volcanic features result from volcanism above a mantle plume? How are hot spots
  related to plate boundaries? What will be an ideal response?



Question 2

What is a mantle plume, and what causes one to erupt? What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

amandanbreshears

  • Sr. Member
  • ****
  • Posts: 320
Answer to Question 1

Mantle plumes are responsible for linear chains of volcanoes in the oceans, as seen in the Hawaii-
Emperor Chain. They are also responsible for flood basalts, vast flat-lying areas of overlapping lava
flows. Hot spots are not related to plate boundaries; most cause intra-plate volcanism.



Answer to Question 2

A mantle plume is a cylindrical plume of hot rock that rises through the mantle, most likely from the
core-mantle boundary. As the rock rises, the pressure on it declines, and the melting temperature of the
rock decreases. Melting begins and creates magma.






 

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

For a complete list of videos, visit our video library