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astraxan [27]
3 years ago
12

What can be used to determine the relative age of two rocks?

Chemistry
2 answers:
ratelena [41]3 years ago
6 0
B. The presence of unconformities 
Alona [7]3 years ago
4 0

The presence of unconformities can be used to determine the relative age of two rocks. Therefore, the correct answer is B

Unconformity refers to a non-depositional surface which separates two strata of different age. Unconformity shows that deposited sedimentary rock was not continuous. Unconformity indicates that the older layer was exposed to erosion before the younger layer.

<h2>Further Explanation</h2>

The upper rocks, that is, the rocks that are higher than the unconformities are younger than those beneath the conformity.

In general, an unconformity indicates the period when no sediments were preserved.

The types of unconformities include

  • Disconformities: this is a type of unconformity between parallel layers of sedimentary rocks. It represents the time of erosion and they are characterized by some qualities of subarea emotion.
  • Nonconformity: this is between an ingenious rock and sedimentary rock when the sedimentary rock was placed on eroded igneous rock
  • Angular unconformity: this is a type of unconformity in which a parallel layer of sedimentary rocks are deposited on eroded layers and generate discordance with the horizontal layers.

Other types of unconformity include:

  • Paraconformity
  • Buttress unconformity
  • Blended unconformity

Therefore, the presence of unconformities can be used to determine the relative age of two rocks.

LEARN MORE:

  • What can be used to determine the relative age of two rocks?  brainly.com/question/2829907
  • What can be used to determine the relative age of two rocks?  brainly.com/question/2825971

KEYWORDS:

  • unconformities
  • relative age
  • rocks
  • sedimentary rock
  • rock layers
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