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

Author Question: Why do we know that the geothermal gradient near the surface cannot continue very deeply into ... (Read 127 times)

ashley

  • Hero Member
  • *****
  • Posts: 584
on: Jul 15, 2018

Why do we know that the geothermal gradient near the surface cannot continue very deeply into
  Earth? What will be an ideal response?



Question 2

What is Earth's average density, what are the average surface rock densities, and what does this tell us
  about the interior of Earth? 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

dmurph1496

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 15, 2018
Answer to Question 1

If the geothermal gradient near the surface continued at depth, the temperature at only 100 km depth
would be so high that all known rocks would melt despite the high pressure.



Answer to Question 2

Earth's average density is 5.5 g/cm3, surface rocks range between 2.5 and 3.0 g/cm3, and, therefore, the
interior must be denser than the crust.



ashley

  • Hero Member
  • *****
  • Posts: 584
Reply #2 on: Jul 15, 2018
Thank you


dmurph1496

  • Sr. Member
  • ****
  • Posts: 343
Reply #3 on: Jul 15, 2018
No problemo


« previous next »
 

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Juglans nigra (Black Walnut tree) lower leaf surface Juglans nigra (Black Walnut tree) lower leaf surface
the fatty acid molecules expose the smallest possible hydrophobic surface area the fatty acid molecules expose the smallest possible hydrophobic surface area
(PDB ID 7GCH) (b) A depiction of the enzyme emphasizing its surface (PDB ID 7GCH) (b) A depiction of the enzyme emphasizing its surface
Friction significantly influences airflow near Earth’s surface, but its effect is negligible at ... Friction significantly influences airflow near Earth’s surface, but its effect is negligible at ...
Ocean cover most of Earth’s surface Ocean cover most of Earth’s surface
A satellite that is in a circular orbit 230 km above the surface of the planet Zeeman-474 has ... A satellite that is in a circular orbit 230 km above the surface of the planet Zeeman-474 has ...
Video: Carbohydrate digestion - mouth and stomach & pancreas and small intestine

For a complete list of videos, visit our video library