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Why strata at the bottom of a rock older than the strata at the top?
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Is a fossil older or younger than a another fossil in a lower rock?
According to the geologic Law of Superposition, in undisturbed rock strata, the deepest rock layers are always the oldest. Accordingly, a fossil found in a lower layer of undisturbed rock would be the older.
What does the The Law of Superposition state?
Principle stating that older rock layers are beneath younger rock layers.
Is the fault older or younger than rock layer A?
older because it is at the bottom and the ones on top are younger than the bottoms
If in the Grand Canyon walls if a fossil imprint of a leaf is lower than a shell fossil does that mean that the leaf fossil is older than the shell fossil?
The strata or rock layers of the grand canyon walls are undisturbed. As such, a layer of rock containing a fossil, that is below an overlying rock layer will be older.
Which is older deep strata or shallow strata?
There is no absolute trend, since geological faults can thrust older rocks above younger ones, and whole sequences can be turned upside down. However, more often than not, for a single location deeper strata are older.
Which conclusion may be made when comparing fossils found in previously undisturbed strata of sedimantary rock?
the fissils in the upper strata are younger than thos in the lower strata.
What is the relationship between geologic strata and relative age?
According to the geologic Law of Superposition, older layers of undisturbed rock are found to be deeper than younger layers. The discovery of trace fossils (organisms that were abundant and rapidly evolving species) in sedimentary rock strata can indicate a relative age or timespan in which the sediments were laid down, based on their relative position in the dated rock strata.
The Law of Superposition is most relevant when studying which type of rock?
The Law of Superposition states that underlying strata are older than overlying strata unless the layers have been disturbed by other processes. Hence the law would be most relevant when studying sedimentary rocks (but not excusively).
What is the Law of Superposition?
Superposition is the principle that states that, in undisturbed strata, newer layers will be deposited over older layers; thus, in a core sample, those samples of earth and rock nearest the surface will be newer in age than those beneath them.
A scentist finds a rock with fossils at two different levels what she might conclude that the fossils on the bottom are older than the fossils at the top?
The fossil on the bottom would be older because as time goes on rock builds up and buries fossils so the higher it is the more recent it is.
What is law of superpositions?
Superposition is the principle that states that, in undisturbed strata, newer layers will be deposited over older layers; thus, in a core sample, those samples of earth and rock nearest the surface will be newer in age than those beneath them.
Why do sedimentary rocks often form layers?
because all the different types and weights of the sediments means that some fall through the water faster than others so when they compress into rock the heaviest sediments will be at the bottom etc.
