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

Author Question: The ________ is solid and very iron rich. A) crust (continental) B) crust (oceanic) C) mantle ... (Read 64 times)

EAugust

  • Hero Member
  • *****
  • Posts: 550
on: Jul 16, 2018
The ________ is solid and very iron rich.
 
  A) crust (continental)
  B) crust (oceanic)
  C) mantle
  D) core (outer)
  E) core (inner)

Question 2

Explain the origin of oceanic crust.
 
  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

Cnarkel

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: E

Answer to Question 2

Answer: It is perhaps a bit surprising that the formation of the basaltic oceanic crust, despite its relative inaccessibility beneath the oceans, is better understood than that of continental crust. The recipe for making basaltpartial melting of mantle peridotite produces basaltic magma. The non-melted peridotite minerals remain behind to make up the mantle part of the lithosphere. Oceanic crust, therefore, simply is extracted from the mantle by partial melting and crystallization. This melting and extraction process is witnessed today at divergent plate boundaries and where mantle plumes generate accumulations of basalt at places such as Hawaii.


EAugust

  • Member
  • Posts: 550
Reply 2 on: Jul 16, 2018
Excellent

tandmlomax84

  • Member
  • Posts: 323
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Species-rich floras of chalk grassland compared to species-poor floras of acid soils. Species-rich floras of chalk grassland compared to species-poor floras of acid soils.
Alternative forms of surgeries involving the uterus, ovaries, and fallopian tubes. The solid lines i Alternative forms of surgeries involving the uterus, ovaries, and fallopian tubes. The solid lines i
Alternative forms of surgeries involving the uterus, ovaries, and fallopian tubes. The solid lines i Alternative forms of surgeries involving the uterus, ovaries, and fallopian tubes. The solid lines i
Oceanic Deposits Oceanic Deposits
Composition of Continental Crust Composition of Continental Crust
Introduction of Water to Mantle Rock Introduction of Water to Mantle Rock
Video: Green alga life cycle Animation

For a complete list of videos, visit our video library