When a rock is disturbed, it usually contains one of the following abnormalities:
If a rock layer contains none of these, then geologists classify it as undisturbed.
the way geologist know that rock layers are undisturbed is the rock layers are folded
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.
The rock layers will be easily visible.
no because that's why I asked u
The undisturbed rock layers are horizontal and in order of age from youngest nearest the surface to oldest at the bottom of the rock unit.
A geologist uses the principle of superposition to determine the relative ages of rocks and sedimentary layers. This principle states that in undisturbed layers of rock, the youngest layers are at the top while the oldest layers are at the bottom. By observing the order in which different rock layers are stacked, a geologist can infer the sequence of events that happened over time in a particular location.
The answer is: Relative dating
the principal of sedimentarianism
they lick
principle of superposition
If rock layers are not horizontal, then some force must have diturbed them after they were fomed.
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.