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 108 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
Excellent

at

  • Member
  • Posts: 359
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

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.

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?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Large male size and mating success. Large male size and mating success.
C:N ratios differ a great deal among the tissues of pines and between the woody tissues of pines and C:N ratios differ a great deal among the tissues of pines and between the woody tissues of pines and
shelducks, genus Tadorna, are a group of large birds in the Tadorninae subfamily of the Anatidae shelducks, genus Tadorna, are a group of large birds in the Tadorninae subfamily of the Anatidae
Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i
An agglutination inhibition reaction. Commercial kit materials would create an agglutination ... An agglutination inhibition reaction. Commercial kit materials would create an agglutination ...
Erosional Landforms Created by Alpine Glaciers Erosional Landforms Created by Alpine Glaciers
Video: Bulk flow - factors that influence bulk flow

For a complete list of videos, visit our video library