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

Author Question: What are the three major classifications of magma? How are they defined? What elements increase or ... (Read 55 times)

Alygatorr01285

  • Hero Member
  • *****
  • Posts: 564
on: Jul 15, 2018

What are the three major classifications of magma? How are they defined? What elements increase or
  decrease in the composition of the three types? What will be an ideal response?



Question 2

Banded iron formations consist of alternating thin layers of chert and iron minerals. Indicate whether the statement is true or false.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Pswine

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 15, 2018
Answer to Question 1

Felsic magma has more than 65 silica, mafic magma is less than 52 silica, and intermediate
magma falls in between. Sodium, potassium, and aluminum are higher in the more silica-rich magmas.
Calcium, iron, and magnesium are lower in the more silica-rich magmas.



Answer to Question 2

T


Alygatorr01285

  • Member
  • Posts: 564
Reply 2 on: Jul 15, 2018
Great answer, keep it coming :)

upturnedfurball

  • Member
  • Posts: 334
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

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?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Major structures of the human brain. Major structures of the human brain.
Body systems and their major functions. Body systems and their major functions.
Major Diagnostic Categories of Mental Disorders Major Diagnostic Categories of Mental Disorders
(A) Major leukocytes. (B) Enhanced color photograph from a scanning electron microscope of a ... (A) Major leukocytes. (B) Enhanced color photograph from a scanning electron microscope of a ...
The major fissures of the human cerebral cortex. The major fissures of the human cerebral cortex.
Major regulatory factors controlling pyruvate dehydrogenase and the citric acid cycle Major regulatory factors controlling pyruvate dehydrogenase and the citric acid cycle
Video: Parathyroid hormone (bone resorption) & Calcitonin (bone deposition)

For a complete list of videos, visit our video library