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Why do scientists expect to find the older layers of sedimentary rock below the younger layers?
Wiki User
∙ 7y ago
By observation:-
If you have 3 jars of different colored sand and you pour them one after the other into a clear glass container, they will form 3 layers one on top of the other.
The oldest layer (the one you poured in first) will be at the base, underneath the other two.
The second layer, the one you poured in next will be on top of the first but underneath the last.
The third layer will be on top of all the rest and will be the one you poured in last.
Thus rocks are laid down with the older layers at the base and getting younger as you go up. This is called "the law off superposition".
Ebba Hoeger
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Where can you find the oldest fossils in sedimentary rock layers?
It would be found in the lower layers, rather that younger fossils which are found in the upper layers. ♥
Younger layers of undisturbed sedimentary rock are above older layers according to?
the principal of sedimentarianism
What do scientists observe to help them interpret Earth's geological history?
Sedimentary Rocks in Layers
If you were looking for fossils in what types of rocks would you expect to find them?
Sedimentary rock layers.
What are the relative ages of igneous intrusion and overlying sedimentary rock layers that dome upward?
The intrusion is younger than the overlying sedimentary rock.
Where can you find the oldest fossils in sedimentary rock layers?
It would be found in the lower layers, rather that younger fossils which are found in the upper layers. ♥
Younger layers of undisturbed sedimentary rock are above older layers according to?
the principal of sedimentarianism
How are sedimentary rock layers used be scientists to learn about the past?
plant and animal fossils are most often found in layers of sedimentary rocks
How are sedimentary rock layers used by scientists to learn about the past?
Sedimentary rock layers are used by scientist help learn by the texture and shapes
How do scientists date sedimentary rock?
They date the igneous intrusions and extrusions near the sedimentary rock layers.
What do scientists observe to help them interpret Earth's geological history?
Sedimentary Rocks in Layers
If you were looking for fossils in what types of rocks would you expect to find them?
Sedimentary rock layers.
One of the key principles of relative dating is the law of superposition which states that?
Younger layers of sedimentary rock are deposited on older layers
What is the age of an igneous intrusion in relation to the sedimentary rock layers it passes through?
It is younger than them.
What is the age of an intrusion of igneous rock in relation to the sedimentary rock layers through which it passed?
It is younger.
What is the The age of an intrusion of igneous rock in relation to the sedimentary rock layers through which it passes?
It is younger.
What are the relative ages of igneous intrusion and overlying sedimentary rock layers that dome upward?
The intrusion is younger than the overlying sedimentary rock.
