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
777dan777 [17]
3 years ago
12

How do scientists determine the relative age of rocks?

Geography
1 answer:
NISA [10]3 years ago
5 0

Answer:

Super position

Faunal Succession

Crosscutting Relationships

Inclusions

Explanation:

Superposition: The most basic concept used in relative dating is the law of superposition. Simply stated, each bed in a sequence of sedimentary rocks (or layered volcanic rocks) is younger than the bed below it and older than the bed above it. This law follows two basic assumptions: (1) the beds were originally deposited near horizontal, and (2) the beds were not overturned after their deposition.

Faunal Succession: Similar to the law of superposition is the law of faunal succession, which states that groups of fossil animals and plants occur throughout the geologic record in a distinct and identifiable order. Following this law, sedimentary rocks can be “dated” by their characteristic fossil content. Particularly useful are index fossils, geographically widespread fossils that evolved rapidly through time.

Crosscutting Relationships: Relative ages of rocks and events may also be determined using the law of crosscutting relationships, which states that geologic features such as igneous intrusions or faults are younger than the units they cut across.

Inclusions: Inclusions, which are fragments of older rock within a younger igneous rock or coarse-grained sedimentary rock, also facilitate relative dating. Inclusions are useful at contacts with igneous rock bodies where magma moving upward through the crust has dislodged and engulfed pieces of the older surrounding rock.

You might be interested in
3-In groundwater replenishment system in Orange County, CA, treated domestic sewer is injected into underlying aquifers using in
lina2011 [118]

Answer:

In groundwater replenishment system in Orange County, CA, treated domestic sewer is injected into underlying aquifers using injection wells.

False

Explanation:

In the orange country's water treatment system techniques like micro filtration  , and ultraviolet ( UV ) , reverse osmosis (RO)  disinfection with hydrogen peroxide are used for purification . Generally at the source polluted water is first micro - filtered for the removal of small suspended particles bacteria , protozoa ,  and harmful virus from water . The water is then filtered via RO , which removes salts , pesticides , viruses  and most organic compounds are passed in the presence of the forced water via thin plastic membrane , and in the final stage , the water is treated with hydrogen peroxide and UV light as a precautionary measure.

8 0
3 years ago
Which term describes the rising of cold water from deeper layers to replace warmer surface water??
larisa [96]
The term is upwelling that is the answer to your question.
5 0
3 years ago
Read 2 more answers
Using the map above which coordinate is correct for #1 ?
Anon25 [30]
Latitude 60 north, longitude 90 east, I’m not too sure tho that’s just what I think :)
5 0
3 years ago
What caused musa to destabilize the world's money supply​
jeka94
Despite his nature of giving, Musa's massive spending and generous donations created a massive ten year gold recession. In the cities of Cairo, Medina, and Mecca, the sudden influx of gold devalued the metal significantly. Prices of goods and wares became greatly inflated.
I hope his helps!! :))
4 0
3 years ago
Gente me ajuda<br> Em que ano finalizou as pesquisas de Minas Gerais
worty [1.4K]
SOOOOOOOOOOOO YEA NOJJJJONIJIJ KOOK KOOOOKK

4 0
3 years ago
Other questions:
  • A Sense of Proportion: Earth orbits 1 AU from the Sun, and the Oort Cloud extends from about 10,000 to 100,000 AU from the Sun.
    10·1 answer
  • What is the climate of most of the central region of Eastern Europe
    15·2 answers
  • An area with water tgat supports vegetion and wildlife in a desert is called what?
    10·2 answers
  • Compare Earth's early atmosphere with its present one.
    7·1 answer
  • Atmosphere the Earth has had. The atmosphere that we are now breathing is the 3rd 2nd only 5th
    10·1 answer
  • What is gross domestic product?
    11·1 answer
  • PLEASE PLEASE PLEASE HELP ME OUT........​
    11·1 answer
  • Why did the United States lead a coalition to invade Iraq in 1991?
    7·2 answers
  • You may turn right on a solid red light:
    14·1 answer
  • In what way is geography an integrative science
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!