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
tresset_1 [31]
3 years ago
8

Geologists frequently look at the relationships among rock layers which statement best describes the information geologists get

from studying these relationship
they get a sense of the history of the area they are investigating

they get a sense of which rocks are the most valuable

they can tell how old the rocks are

they can tell how dense the rocks are
Geography
2 answers:
zhuklara [117]3 years ago
7 0
I imagine, it's A, they get a sense of the history of the area they are investigating.
marysya [2.9K]3 years ago
7 0

Answer:

A, they get a sense of the history of the area they are investigating.

Explanation:

You might be interested in
What is our most important renewable energy source?
Crank

Answer:

D

Explanation:

The Sun because it is the friendly renewable source of energy and also it is the costless renewable source of energy

7 0
3 years ago
Read 2 more answers
Describe the four processes of magma differentiation.
andrezito [222]

Answer:

the four processes of magma differentiation are starting with Fractional crystallization , Assimilation , Replenishment and Magma mixing.

Explanation:

Magma differentiation -

It is also called igneous differentiation , is a kind of combination term for the various processes involved in the chemical change by which magmas undergoes bulk changes during cooling , emplacement , partial melting process or eruption .

The process involved has been called the FARM process , i.e , starting with Fractional crystallization , Assimilation , Replenishment and Magma mixing.

Fractional crystallization of igneous rocks

This is the most important geochemical process that is working inside the Earth's crust and the mantle . This process of segregation and removal from the melt of the mineral precipitates , that can change the composition of the melt .

The process is complex in context as it varies by a wide variety of phenomena , that are , temperature , composition and the pressure .

Assimilation -

This process explains the mafic magmas as it get rise from the crust and the felsification of the ultramafic . The assumption involved in this process is that the hot primitive melt intrudes into a cooler and the felsic crust will melt crust and get mixed with the resulting melt , which in turns alters the composition of primitive magma .

Replenishment  -

During the process of the cooling of the melt , the results are limited so as to produce a solid body of intrusive rock , which is homogeneous in nature and which has uniform composition and mineralogy . This is due to -

The fresh magma can change the melt's composition ,and the fresh magma can destabilizes the minerals , even change in temperature can lead to rapid crystallization .

Magma mixing  -

The composition in between of two end - member magma is achived by combining two magma's and forming a single composition.

This is a common process in the volcanic magma chambers , that are a open - system chambers , and magma under goes various processs of assimilation , fractional crystallization , and partial melt extraction and are replenished . Even this process is operated deep in the crust and is one of the primary mechanism for the formation of the rocks like monzonite and andesite .

Rate of cooling impact crystal size -

Crystals are formed by the cooling of the magma ,

There are two types of cooling possible , rapid cooling and slow cooling , both can lead to different types of crystal .

If the magma is cooled quickly , i.e. , rapid cooling , the crystals will not have time to form , hence are small in size ,

And in case the magma is cooled slowly , the crystals will have ample amount to time to grow in size , and , hence will form larger crystals .

If the igneous rock has large crystals , then it indicates that the rock was formed deep inside the earth , because deep inside the earth , it is warmer .

These are called intrusive rocks, and have a phaneritic texture .

If the igneous rock has small crystals , then it is formed by rapid cooling , near the Earth's surface .  These are called extrusive rocks and have an aphanitic texture .

6 0
3 years ago
Which Number in the following picture, identifies a saddle?
FrozenT [24]

Answer:

Hey!

Umm...maybe put up a diagram and we can see what you're talking about and answer it!!

Explanation:

6 0
3 years ago
Two major effect of globalisation​
jeka57 [31]

globalization has led to an improvement in standard of living through improved roads and transportation, improved health care, and improved education due to the global expansion of corporations.

5 0
3 years ago
How did domestication change how people see their environment and use land?
Licemer1 [7]

Answer:

mabe so they needed to conserve space so that they can make the most money with the land that they have?

7 0
2 years ago
Read 2 more answers
Other questions:
  • Whaling was a major industry in the Northeast in the 1800’s.<br> true or false
    14·1 answer
  • Lindy is making a homemade gift. She is going to make a border of ribbon around the gift. How many centimeters of ribbon does sh
    14·1 answer
  • The production of ethanol is one step taken to reduce
    5·1 answer
  • Can someone tell me how to score in geography?? :(
    6·1 answer
  • What causes mountain ranges to form?
    12·2 answers
  • Physical environments can change the way we live: we may change behaviors, habits, or traditions based on our surroundings. We a
    15·1 answer
  • Question 1
    10·2 answers
  • After the Korean war in the South
    6·1 answer
  • What does the design of the UN flag represent?
    12·2 answers
  • What is volcanicity?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!