1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aivan3 [116]
3 years ago
12

Bowen’s continuous reaction series describes the crystallization behavior of a singlemineral (with variable chemical composition

), ____________.
A. olivine
B. pyroxene
C. plagioclase
D. quartz
Geography
1 answer:
FromTheMoon [43]3 years ago
5 0

Answer:

C. plagioclase

Explanation:

From the magma silicate crystals are formed successively when the magma temperature reaches the typical melting temperature for each type of crystal. The first crystals formed at high temperatures can then change their composition or dissolve again. In this way the crystals already formed contribute their ions, molecules and atoms to magma and combine again forming new crystals whose melting temperature is lower than that of the first crystals formed. The new crystals are said to be stable at the lowest temperatures set now. These processes of change are called reactions. As several successive reactions occur as the magma temperature decreases the ordered series of reactions is called the BOWEN series in honor of the Canadian scientist who formulated this concept. There are two types of reactions, the continuous reaction and the discontinuous reaction.

<u> By continuous reaction a crystal formed at high temperatures such as a plagioclase rich in the Ca2 +</u> component gradually varies its composition by replacing a portion of the Ca2 + ions with the Na + ions and a portion of the Al3 + ions with the Si4 + ions. To maintain its neutrality, the replacement of Ca2 + by Na + is coupled with the replacement of Al3 + by Si4 +. The series of continuous reaction starts from the plagioclase rich in Ca2 +, passes through several plagioclase of intermediate composition towards the plagioclase rich in Na +

You might be interested in
Southeast Asia is located on the equator, which means almost the entire region falls within the humid tropics.
DiKsa [7]
It is a true statement that Southeast Asia is located on the equator, which means almost the entire region falls within the humid tropics. The correct option the two options that are given in the question is the first option or option "a". Equator is actually an imaginary line on the surface of the earth that is at equidistant from the north pole and the south pole.
3 0
3 years ago
Read 2 more answers
Where along the 48 states is plate collision currently taking place?
4vir4ik [10]

Answer:

Sometimes an entire ocean closes as tectonic plates converge, causing blocks of thick continental crust to collide. A collisional mountain range forms as the crust is compressed, crumpled, and thickened even more. The effect is like a swimmer putting a beach ball under his or her belly—the swimmer will rise up considerably out of the water. The highest mountains on Earth today, the Himalayas, are so high because the full thickness of the Indian subcontinent is shoving beneath Asia.

The Appalachian Mountains formed during a collision of continents 500 to 300 million years ago. In their prime they probably had peaks as high as those in the modern zone of continental collision stretching from the Himalayas in Asia to the Alps in Europe. But over the past 300 million years, the Appalachians have eroded to more modest heights.

Explanation:

carry on learning

and subscribe the sweet poison glmv

have a good day!!!

4 0
3 years ago
What would happen if we did not use time zones?
Evgesh-ka [11]

Some of the world would be dark and some would be light so it would get confusing

3 0
4 years ago
A forester is _______
alekssr [168]
The answer is c. hope this helps

8 0
4 years ago
Read 2 more answers
Which is a potential source of natural short-term climate change? apes?
Klio2033 [76]
The answer would be : <span>volcanism.

Hope this helps !

Photon</span>
5 0
3 years ago
Other questions:
  • Pastoralism is one form of subsistence agriculture. true or false
    9·2 answers
  • What forms when an underwater volcano erupts causing magma to cool quickly?
    6·1 answer
  • is this statement true or false? all points along a parallel line are the same distance from the equator
    8·2 answers
  • Which religions were founded in Europe and Southwest Asia
    5·1 answer
  • Define direct democracy
    10·2 answers
  • How is Mexico’s Population changing?
    12·1 answer
  • 1 Lines of longitude meet at the<br>(a) equator (b) poles<br>(e) Tropic of Cancer​
    10·1 answer
  • Which of the following best describes how levees impact wetlands?
    6·1 answer
  • A scientist is studying the living and nonliving things that form a forest.
    5·2 answers
  • What is the Capital of Chhattisgarh<br>a) Mumbai<br>b) Raipur<br>c) Jaipur<br>d) Jharkhand.​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!