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Index fossils work similar to counting populations of living creatures. An increase or decrease in populations of certain creatures can provide clues to the climate and climate changes.
Wiki User
∙ 9y ago
Wiki User
∙ 12y agoFor two reasons--
- To establish the the chronological sequence of the different strata in various parts of the earth.
- For searching fossil fuels.
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Are index fossils short lived?
studyisland awnser: to date a rock layer and other fossils within that layer
What kind of rock layers did index fossil date?
index fossils are used to date the rock layers they are found incc
How can fossils be used to date the rock in the strata?
Because index fossils are useful because they tell the relative ages of the rock layers in which they occur. They also tell what year they were made.
Fossil used to compare the relative ages of fossils?
index fossils
What are index fossils and how are they used to determine the absolute age of sedimentary rocks?
Index fossils can be used to help determine the relative age of rock layers. Index fossils are from species that only existed for a short time. Index fossils are found in rock layers. Trilobites and Graptolites are index fossils.
What do geologist use index fossils for?
to date a rock layer and other fossils within that layer
Are index fossils short lived?
studyisland awnser: to date a rock layer and other fossils within that layer
What is a fossil used to date surrounding rock layers called?
Index fossils.
What kind of rock layers did index fossil date?
index fossils are used to date the rock layers they are found incc
How can fossils be used to date the rock in the strata?
Because index fossils are useful because they tell the relative ages of the rock layers in which they occur. They also tell what year they were made.
How can fossils be used to date rocks?
Geologists look for index fossils in the sedimentary rock to help determine its age. Index fossils are of organisms that were widespread and only existed during a specific slice of geologic time. Finding an index fossil in a rock means that the rock dates to that specific slice of time.
Fossil used to compare the relative ages of fossils?
index fossils
What are index fossils and how are they used to determine the absolute age of sedimentary rock?
Index fossils can be used to help determine the relative age of rock layers. Index fossils are from species that only existed for a short time. Index fossils are found in rock layers. Trilobites and Graptolites are index fossils.
What are index fossils and how are they used to determine the absolute age of sedimentary rocks?
Index fossils can be used to help determine the relative age of rock layers. Index fossils are from species that only existed for a short time. Index fossils are found in rock layers. Trilobites and Graptolites are index fossils.
Why are index fossils more useful then other fossils to paleontologist?
It is because the index fossils has better minds than the paleontologist.
What are index fossil and how are they used to determined the absolute age of sedimentary rock?
Index fossils can be used to help determine the relative age of rock layers. Index fossils are from species that only existed for a short time. Index fossils are found in rock layers. Trilobites and Graptolites are index fossils.
How do geologists use index fossils to determine rock age?
Index fossils, also known as zone or guide fossils, help date strata and sediment to determine the age of entrapment. The best index fossils are those that were abundant , common, and short lived.
