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Within a small area, you can correlate the rocks of one locality with those of another by simply walking along the outcropping edges. However, this might not be possible when the rocks are covered by soil and vegetation. This problem can be corrected if you note the position of a distinctive rock layer in a sequence of strata. You may be able to identify a rock layer in another location if it's composed of very distinctive or uncommon minerals.

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Rock layers containing fossils from the same period of geological time can be correlated, however far apart they are on the Earth's surface

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geologists use correlation to match rocks of similar age in different locations

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Q: Why do geologists correlate rock layers?
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Related questions

How are index fossils useful to geologist?

Index fossils provide a reference of time throughout rock layers. In order to be a good index fossil, the life form must have lived for a short and specific amount of time and must have existed over a large area. Index fossils serve as a reference to geologists in correlating rock layers. They can match up (or correlate) the index fossils which helps them match up (or correlate) the rock layers.


Which The simplest way to correlate exposed rock layers in the same general vicinity when they contain no fossil is by?

following the continuity of the layers


What clues does extrusion tell geologists?

Geologists study where intrusion and extrusion formed in relation to other rock layers. This helps geologists understand the relative ages of the different types of rock! Hope it helps;)😊


How can you use fossils and geologic features interpret the relative age of rock layers?

Geologists use carbon-14 to interpret the relative age of rock layers


Remains of plants or animals used to correlate rock layers over large geographic areas?

index fossil


What two ways geologists use the geologic column?

1.Geologists use the geologic column to help them interperet rocks sequences. 2.they use to help them identify rock layers in complicated rock sequence.


What is a sentence using the word correlate?

Geologists try to correlate earthquakes with movements along existing fault lines. The odds of success does not always correlate with the amount of effort applied.


How do the layers of the OSI model correlate to the layers of the OSI model?

OSI


How does a geologist know that rock layers are undisturbed.?

When a rock is disturbed, it usually contains one of the following abnormalities:SlantingBendingFoldingCrackingMetamorphismor Nonconformities.If a rock layer contains none of these, then geologists classify it as undisturbed.


How can you use fossils and geologic-features interpret the relative age of rock layer?

Geologists use carbon-14 to interpret the relative age of rock layers


Why geologists are interested in outcrops or cliffs?

Geologists would be interested in outcrops and/or cliffs because sometimes cliffs show the different beds of rock under the Earth's surface. This is easier than drilling into the ground and getting a sample of the rocks.


What is the geologic columnused in relative dating?

1.Geologists use the geologic column to help them interperet rocks sequences. 2.they use to help them identify rock layers in complicated rock sequence.