This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: How do the eruptions that created the Columbia Plateau differ from eruptions that create large ... (Read 78 times)

debasdf

  • Hero Member
  • *****
  • Posts: 570
on: Jul 14, 2018
How do the eruptions that created the Columbia Plateau differ from eruptions that create large composite volcanoes?
 
  What will be an ideal response?

Question 2

What type of volcanic structure is Shiprock, New Mexico, and how did it form?
 
  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

beccamahon

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jul 14, 2018
Answer to Question 1

The Columbia Plateau eruptions were fissure eruptions of fluid basalt rather than violent pyroclastic andesitic eruptions. The flood basalts flow outward and form large flat plateaus rather than building tall conical structures.

Answer to Question 2

Shiprock is a volcanic neck. When a volcano becomes inactive, congealed magma often becomes preserved in the feeding conduit of the volcano as a crudely cylindrical mass. Over time, all volcanoes will succumb to forces of weathering and erosion. Over time, the rock occupying the volcanic conduit, which is highly resistant to weathering, may remain standing above the surrounding terrain long after the cone has been worn away.


debasdf

  • Member
  • Posts: 570
Reply 2 on: Jul 14, 2018
Thanks for the timely response, appreciate it

chjcharjto14

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Pacific Rim National Park, British Columbia Pacific Rim National Park, British Columbia
Many salmon spawning grounds, such as the Little Qualicum River in British Columbia, consist of wate Many salmon spawning grounds, such as the Little Qualicum River in British Columbia, consist of wate
(a) Feeding by bear on salmon results in large allochthonous inputs of nutrients into (b) the forest (a) Feeding by bear on salmon results in large allochthonous inputs of nutrients into (b) the forest
Extended Objects Create a Focal Plane Extended Objects Create a Focal Plane
Large intestine. Large intestine.
A Karman Vortex air flow sensor uses a triangle-shaped rod to create vortexes as the air flows ... A Karman Vortex air flow sensor uses a triangle-shaped rod to create vortexes as the air flows ...
Video: Fermentation pathways

For a complete list of videos, visit our video library