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that's easy, dirt is on the ground and over the yyears more dirt and rock cover it, subsequently every new layer of ground goes on top of the last one making the most current one the one top with other layers increasing in age as you go further down.

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13y ago
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7mo ago

The principle of superposition states that in an undisturbed sequence of sedimentary rocks, the youngest layer is at the top because it was the last layer deposited on top of the existing layers. As new sediments are deposited, they accumulate on top of older layers, causing the top layer to be the youngest.

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14y ago

According to the Law of Superposition, in a depositional sequence of undisturbed rock layers, the top layer of rock is the most recent to form from the processes of lithification or eruption of lava onto the surface, and are therefore the youngest rock layers.

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damienwiseman

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4y ago

folding

sedimentation

erosion

or faulting

choose one

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13y ago

Strata maybe...

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Q: Why is the top layer the youngest in a sedimentary rock?
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What layer is the youngest layer in the sedimentary rock?

The youngest layer in sedimentary rock is typically found at the top of the rock formation. This layer is the most recently deposited and is therefore the youngest in the sequence.


When might the youngest layer in a set of sedimentary rock not be on top?

The youngest layer of sedimentary rock may not be on top if the layers have undergone folding or faulting, causing the youngest layer to be pushed beneath older layers. This can happen due to tectonic forces acting on the Earth's crust, altering the original horizontal sequence of the rock layers.


What rock layer is the youngest?

The principle of superposition states that in an undisturbed sequence of rock layers, the youngest will be at the top, the oldest at the bottom.


How do scientists use sedimentary rock to determine a fossils relative age?

Scientists can use sedimentary rock to determine a fossil's relative age by examining the layers in which the fossil is found. The principle of superposition states that in an undisturbed sequence of sedimentary rock layers, the oldest layer is at the bottom and the youngest layer is at the top. By identifying the layer in which the fossil is located, scientists can approximate its relative age compared to other fossils and rock layers.


Why is the sedimentary rock layer at the bottom of a canyon older then a sedimentary rock layer at the top of a canyon?

The principle of superposition states that in undisturbed layers of sedimentary rock, the lower layers were deposited first, making them older than the layers above them. This is due to the continuous buildup of sediment over time, with the oldest layers at the bottom and the youngest at the top.

Related questions

What layer is the youngest layer in the sedimentary rock?

The youngest layer in sedimentary rock is typically found at the top of the rock formation. This layer is the most recently deposited and is therefore the youngest in the sequence.


Where is the youngest layer of sedimentary rock found?

The youngest layer of sedimentary rock is typically found at the top of a sedimentary rock sequence, as it is the most recently deposited layer. This layer is usually exposed on the Earth's surface, such as in river valleys or coastal areas, where erosion may have removed older layers above it.


When might the youngest layer in a set of sedimentary rock not be on top?

The youngest layer of sedimentary rock may not be on top if the layers have undergone folding or faulting, causing the youngest layer to be pushed beneath older layers. This can happen due to tectonic forces acting on the Earth's crust, altering the original horizontal sequence of the rock layers.


Is The top layer of sedimentary rock is the oldest true or fasle?

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


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.


Where is the youngest layer of rock found?

On the top


What type of rock is Law of superposition?

The Law of Superposition is a geologic principle that states in a sequence of undisturbed sedimentary rock layers, the oldest layer is at the bottom and the youngest layer is at the top. It is not a type of rock; rather, it is a fundamental concept used in geology to determine the relative ages of rock layers.


What rock layer is the youngest?

The principle of superposition states that in an undisturbed sequence of rock layers, the youngest will be at the top, the oldest at the bottom.


Is the top layer of rock the youngest layer?

According to the Law of Superposition, in a depositional sequence of undisturbed rock layers, the top layer of rock is the most recent to form from the processes of lithification or eruption of lava onto the surface, and are therefore the youngest rock layers.


Why do rock fossils form in sedimentary rock and not in igneous rock?

because sedimentary rocks are on the top layer, while igneous rocks are were the magma is


Superposition can best be explained new layer on old layer?

Superposition is the theory that the rock layer that is on top is the youngest and the layer of rock on the bottom is the oldest.


How do scientists use sedimentary rock to determine a fossils relative age?

Scientists can use sedimentary rock to determine a fossil's relative age by examining the layers in which the fossil is found. The principle of superposition states that in an undisturbed sequence of sedimentary rock layers, the oldest layer is at the bottom and the youngest layer is at the top. By identifying the layer in which the fossil is located, scientists can approximate its relative age compared to other fossils and rock layers.