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Based on the Law of Superposition, the most recent fossils would be in the top strata, the oldest in the bottom.
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Rock layers are correlated if they both contain the same?
Fossils
How do distinctive rock strata support the theory of continental drift?
Since you can find the same distinctive rock strata in both the east coast of South America and the west coast of Africa, it suggests that those two coasts were once connected.
Why do geologists correlate rock layers?
Within a small area, you can correlate the rocks of one locality with those of another by simply walking along the outcropping edges. However, this might not be possible when the rocks are covered by soil and vegetation. This problem can be corrected if you note the position of a distinctive rock layer in a sequence of strata. You may be able to identify a rock layer in another location if it's composed of very distinctive or uncommon minerals.
Dating technique involving compraring fossils in rock layers?
Relative dating-comparing fossils related to how old other fossils are in the same sample of rock. If the rock has been undisturbed, the oldest rock will be at the bottom, therefore, the oldest fossils will also be at the bottom. the youngest rock will be at the top, therefore, the youngest fossils will be at the top. Absolute Dating-When you can figure out through testing the exact age of the fossil
One way to correlate similar rock layers?
Correlating rock layers is comparing two rock layers to each other. I hope that this helps :) Actually its the matching up of rocks of the same age from place to place is called correlation of the rock layers. I hope that this helps :)
How can fossil correlation be used to determine the ages of rock layer?
dont care
What can you infer about other fossils in the same rock layer as trilobites?
It can be assumed that the organisms that created the fossils were a part of the same depositional environment and process, and roughly from the same time span of the rock that comprises the layer.
What is an assise?
An assise is the presence of two or more beds or strata of rock united by the occurrence of fossils in the same characteristic species or genera.
If the same types of fossils are found in two separate rock layer its likely that the two rock layers?
If the same types of fossils are found in two separate rock layers, it's likely that the two rock layers ____.
If the same types of fossils are found in two separate rock layer's it's likely that the two rock layers?
If the same types of fossils are found in two separate rock layers, it's likely that the two rock layers ____.
Is fossil dating the same method for dating rocks?
Because most fossils are found in rock strata, the method for dating them is the same--measuring the amount of decay of an isotope.
How do you Think the scientists knew Thai iridium had first appeared at about the time the dinosaurus died out?
By knowing which strata it was found and the rate of the strata's being laid down. finding fossils in that same strata.
How do fossils help shows that rocks at different location belong to the same rock layer?
they help show because f a fosill is located in one area and another fossil is located in a different area but with the same rock type thats how
What is the importance of index fossils?
Index fossils are the fossils of short-lived species which, because of their short lives, can be used by scientists to identify the age of the rock strata in which they're found. (For example, if you know a certain species only lived in the Cambrian period, and you find some fossils of this species in some rock, then you know the other fossils you find in that rock must also have come from the Cambrian period.) Some examples of species that left behind index fossils, and their related historical periods, are:Billingsella corrugagta - Cambrian period, Palaeozoic eraCactocrinus multibrachiatus - Mississippian period, Palaeozoic eraScaphites hippocrepia - Cretaceous period, Mesozoic eraNeptunea tabulata - Quarternary period, Cenozoic eraSee the links below for more examples and info.
Rock layers are correlated if they both contain the same?
Fossils
What do scientists use to date exact age of fossils?
For relatively recent fossils, dating by carbon 14 is the most accurate method. For older fossils it is necessary to analyse the geological layer in which they are found; fossils located in an undisturbed geological layer of a certain age, are the same age as the layer in which they are found, necessarily.
How do distinctive rock strata support the theory of continental drift?
Since you can find the same distinctive rock strata in both the east coast of South America and the west coast of Africa, it suggests that those two coasts were once connected.
