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How the law of superposition helps scientist determine relative age?

Younger layers are deposited on top of older layers, whether the layer is sedimentary or volcanic. Occasionally faults may result in overthrusts, where a series of older layers may be pushed over the top of younger layers. But this is rare. In general, the older layers will be the lower layers.


If middle layer of rock is 120 million years old what can be said about above and below layer?

The layers above the 120 million-year-old middle layer are likely younger, while the layers below are likely older. This indicates a relative chronological sequence in the deposition of the rock layers, following the principle of superposition in geology.


What statements states relative age?

"The fossils found in this rock layer are older than the fossils found in the layer above it." "The granite intrusion is younger than the surrounding sedimentary rocks." "The volcanic ash layer is slightly older than the layer of soil above it." "The erosion pattern on the hillside indicates that the granite rocks are older than the layers of sediment deposited on top of them." "The cross-cutting relationship between the fault and the layers of rock indicate that the fault is younger than the rock layers it cuts through."


Could you tell me something about realative ages of rocks for a project please?

When you look at a rock that has undisturbed layers, the bottom layers are older and the upper layers are younger. Anytime a rock layer crosses another (ie. an intrusion), the crossing layer is younger.


Is the layer of rock at the bottom of a sedimentatry rock younger or older?

The layer of rock at the bottom of a sedimentary rock is older. This is due to the principle of superposition, which states that in an undisturbed sequence of rock layers, the oldest rocks are at the bottom and the youngest are at the top.


Evaluate the age of rocks You find three undisturbed rock layers The middle layer is 120 million years old What can you say about the ages of the layers above and below it?

The layer above the 120 million-year-old layer must be younger, and the layer below must be older. So, the layer above the middle layer will be younger than 120 million years, and the layer below the middle layer will be older than 120 million years.


What is the plural of layer?

The plural of layer is layers.


What is the best indication of a relative age of a rock layer?

The best indication of the relative age of a rock layer is its position in relation to other rock layers. The principle of superposition states that in a sequence of undisturbed rock layers, the oldest layer is at the bottom and the youngest is at the top. Cross-cutting relationships, fossil succession, and original horizontality can also provide clues for determining relative age.


Is a layer younger or older than the layers it cuts through?

A fault is necessarily younger than faults it cuts through; it could not have happened if the layers were not there first.


What is the defointion for the law of superstition?

the law of superstition is the geologi principle that states that in horizontal layers of sedimentary rock.Each layer is older than the layer above it and younger than the layer below it


What is the definition of strata?

Strata are the layers of the earth. The deeper the layer, the older the objects that are found in the layer will be. Archaeologists use this as a common way to date objects.


According to the principle of superposition the lowest layer in a cross section of a rock sequence?

According to the principle of superposition, the lowest layer in a cross section of a rock sequence is the oldest, as younger layers are deposited on top of older layers. This principle helps geologists determine the relative ages of rock layers by analyzing the order in which they were formed.