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
Studentka2010 [4]
3 years ago
11

A plume of magma pushes its way into a crack in Earth's crust. The heat causes _____. . A. contact metamorphism. B. regional met

amorphism. C. dynamic metamorphism. D. igneous metamorphism.
Geography
2 answers:
Vinvika [58]3 years ago
7 0
The heat causes contact metamorphism. The correct option among all the options that are given in the question is the first option or option "A". Contact metamorphism is the type of metamorphism that is caused due to proximity or contact with an igneous intrusion. I hope the answer has helped you.
RUDIKE [14]3 years ago
4 0

The answer is A. Contact Metamorphism

This kind of metamorphism changes the rock minerals and texture are changed because of heat and its contact to magma. The magma forces its way up to the vent and baking the rocks until it changes.

You might be interested in
What must humans do to ensure the future generations of trees?
lawyer [7]
I say the answer is B
3 0
3 years ago
All of the following statements are true of dictatorship except
kobusy [5.1K]

There are no untrue statements on the list you have provided.

7 0
3 years ago
What does the word minerals mean to you?
melamori03 [73]
The word minerals mean A formal definition of a mineral, as used by geologists would be: A naturally occurring inorganic solid that has a definite chemical composition, and an ordered internal structure. Geologists are able to identify minerals because they have characteristic physical properties.
3 0
3 years ago
10 times the value of y three different ways of using symbols
Alex73 [517]

10xY

10 . Y

10Y

There you go can i get a 5 star and brainlyist

4 0
3 years ago
Which of the following would be an important observation that could help you identify a metamorphic rock? Choose one: A. large c
raketka [301]

Answer:

D. the arrangement of mineral grains into a foliation

Explanation:

Due to the tectonic activity of the terrestrial lithosphere, igneous and sedimentary rocks formed in certain environments and under precise environmental conditions, can be subjected to new conditions (essentially pressure and temperature). Under the new conditions, and frequently under the action of tectonic stresses (linked, for example, to the formation of mountain ranges), pre-existing rocks are transformed texturally, structurally and mineralogically into a solid state, giving rise to metamorphic rocks. Its fundamental characteristic is to present blastic texture (i.e., solid state recrystallization), and in cases of deformation, anisotropic factories.

The petrographic characteristics of these rocks are especially complicated, given the solid state transformation processes that they have suffered, usually accompanied by intense deformation. Due to the gradual nature of metamorphic (and deformational) transformations, the characteristics of this type of rock also range from igneous or sedimentary to purely metamorphic.

<u>Foliation </u>

The term foliation (foliatus: leaf-shaped) refers to any planar (almost flat) arrangement of mineral grains or structural features of the interior of a rock. Although there is foliation in some sedimentary rocks and even in a few types of igneous rocks, it is a fundamental characteristic of rocks that have undergone regional metamorphism, that is, rocky units that have folded and deformed greatly. In metamorphic environments, foliation is caused, ultimately, by the compressive efforts that shorten the rock masses, causing the mineral grains of pre-existing rocks to develop parallel or almost parallel alignments. Examples of foliation are the parallel alignment of minerals with planar habit and / or elongated minerals; the parallel alignment of mineral particles and flattened edges; the compositional bandeado where the separation of dark and light minerals generates a laminar appearance, and the blackboard when the rocks easily separate into thin and tabular layers along parallel surfaces. These different types of foliation can be formed in many different ways, such as:

1. Rotation of elongated or planar mineral grains towards a new orientation.

2. Recrystallization of minerals to form new grains that grow in the direction of the preferred orientation.

3. Changes in shape in equidimensional grains to elongated shapes that align in a preferred orientation.

3 0
3 years ago
Other questions:
  • Annual food production in Ancient Egypt was completely dependent on __________. A. the amount of rainfall received during the gr
    10·2 answers
  • Which measure is less than 435 inches
    12·1 answer
  • What animal is native to California
    10·2 answers
  • Which phrase describes one type of freshwater wetland?
    13·2 answers
  • An imaginary line that circles the earth at 0 degrees latitude is called?​
    14·1 answer
  • 11.<br> What is the purpose of collecting personal data?
    8·1 answer
  • I need the in 5 minutes or under, please
    10·1 answer
  • II. Match the following.
    10·1 answer
  • Most thunderstorms have flat tops (or do not extend very far into the stratosphere) because the air in the stratosphere is
    6·1 answer
  • Negative impact caused by cold front at Cape town<br>​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!