« previous next »

Author Question: Why are some minerals useful as metamorphic index minerals, while other minerals are not? What ... (Read 143 times)

mynx

  • Hero Member
  • *****
  • Posts: 555
on: Jul 16, 2018
Why are some minerals useful as metamorphic index minerals, while other minerals are not?
 
  What will be an ideal response?

Question 2

Define pressure, stress, and strain. How do they relate to one another?
 
  What will be an ideal response?


bookworm410

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 16, 2018
Answer to Question 1

A mineral is useful as a metamorphic index mineral if it occurs only in a restricted range of temperature and/or pressure. A mineral is not useful as a metamorphic index mineral if to occurs over a wide range of temperature and pressure.

Answer to Question 2

Pressure and stress are defined as the magnitude of a force divided by the area of the surface on which the force is applied.
Normal stress is the force applied perpendicular to a surface. Shear stress is the force applied parallel to the surface.
Pressure increases with increasing force exerted by the weight of overlying rock, at depth, and where force is equal in all three dimensions. A special type of normal stress.
Strain is the deformation of rock as a result of applied stress.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

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

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Example of the Index to Diseases and Injuries. Example of the Index to Diseases and Injuries.
Vitamins and Minerals Vitamins and Minerals
NCC MERP Index for categorizing medication errors algorithm. NCC MERP Index for categorizing medication errors algorithm.
Cranial polarization. Lightly place both thumbs on the anterior fontanel, with both index fingers ... Cranial polarization. Lightly place both thumbs on the anterior fontanel, with both index fingers ...
Major Minerals Major Minerals
Calculation of the Value of Depletion for the 14 Most Important Minerals Calculation of the Value of Depletion for the 14 Most Important Minerals
Video: Morphology of a tomato plant

For a complete list of videos, visit our video library