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What does the location of different fossils in different layers of a rock tell scientists?
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How do scientists date fossils and artifacts?
Dating fossils and artifacts are easy. Scientist can look and tell how old the fossils by how many layers is under it.
What two things did 19th century scientists do to determine the relative age of sedimentary rock all over the world?
They studied fossils and applied the principle that old layers of rock are below young layers! -
Where are the oldest organisms located in the rock layer?
In the geological column , scientists have learned that rocks are stacked in layers. The oldest fossils are located in the deepest layers, a vertical timeline.
How do fossils in rock layers help scientists identify the age of rocks?
depending on how deep the rock is in the ground tells scientists how old the rock is
What two things did 19th century scientists do to determine the relative ages of sedimentary rock all over the world?
They studied fossils and applied the principle that old layers of rock are below young layers! -
How do scientists date fossils and artifacts?
Dating fossils and artifacts are easy. Scientist can look and tell how old the fossils by how many layers is under it.
What two things did 19th century scientists do to determine the relative age of sedimentary rock all over the world?
They studied fossils and applied the principle that old layers of rock are below young layers! -
By comparing fossils in higher sedimentary layers with fossils in lower sedimentary layers scientists can learn what?
I.which types of organisms were more common during various time periods.II.how species have evolved over time.III.the relative age of different species. there it is
How do scientists put fossils in order on the geologic time scale?
Location. Different layers of rock/soil tell a roughly chronological tale of the past, barring cataclysm. There are enough undisturbed sites worldwide that a mosaic can be discerned. Good question.
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
Which is an example of relative dating?
One example of relative dating is studying the layers of rock in a particular area. By analyzing the sequence of rock layers and the fossils within them, scientists can determine the relative ages of the rocks and the fossils they contain.
Principle that allows rock layers in different places to be correlated based on their fossils?
Relative dating by index fossils.
Where are the oldest organisms located in the rock layer?
In the geological column , scientists have learned that rocks are stacked in layers. The oldest fossils are located in the deepest layers, a vertical timeline.
How do fossils in rock layers help scientists identify the age of rocks?
depending on how deep the rock is in the ground tells scientists how old the rock is
How scientists determine the age of a fossil?
The dating of fossils was originally done by their placement in a geologic column of rock strata. Because of the Law of Superposition, the deeper the stratum, the older it is (in an undisturbed body of rock or sediment). Fossils which were evident in a particular stratum, but missing from other strata were noted as "index" fossils. The presence of these fossils indicated the age of the stratum relative to other layers. The layers of stratum were placed in a geologic column, subdivided, and assigned names based on the presence of different types of fossil organisms.This is the basis of "relative dating" of rock layers and fossils, a dating technique that was in effect until the advent of radiometric techniques in the twentieth century.
What two things did 19th century scientists do to determine the relative ages of sedimentary rock all over the world?
They studied fossils and applied the principle that old layers of rock are below young layers! -
What is one way scientists can tell if an area of land once covered by an ocean?
There are sedimentary rock layers and possibly carbonate fossils from sea creatures.
