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The two methods are "RELATIVE DATING" and "ABSOLUTE DATING". :)
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoRelative dating and Radioactive dating
absolute dating & relative dating
relative and absolute dating
Wiki User
∙ 9y agoThere are two methods used to determine the age of a rock or fossil. The first is carbon dating and the second is radiometric dating.
Wiki User
∙ 12y agoCarbon dating and dating with other types of radioactive isotopes is the most common way to date an ancient object.
Wiki User
∙ 11y agorelative dating and absolute dating
Wiki User
∙ 11y agoabsolute dating
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Why are index fossils so important to geologists?
Index fossils are very important to geologists because they identify geological time periods. Index fossils are found within a specific layer of rock- So when one finds the age of the rock layer, that is also the age of the index fossil.
How do scientist know how old fossils are?
they see how deep these rocks are in the earth then they predict ---- Carbon dating is another popular method, by which fossils and other historical artifacts are tested to record levels of a common carbon isotope with a certain half-life.
What two methods are used to determine the age of a rock?
The two methods are relative dating and radioactive dating for fossils. I think it's the same for rocks.
Fossils such as trilobites that can be used to estabish the age of rocks are called?
I think they are called Index Fossils...
Do index fossils tell the relative or absolute age of fossils?
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 fossils to determine rocks age what are this fossils called?
they find the hard part of the fossil
How do fossils help geologists?
Fossils help geologists discover new species. Fossils also explain and show the age of the specimen and change in life forms.
How does a geologist determine absolute age?
Geologists determine absolute age of rocks by using radioactive dating.
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.
How can fossil correlation be used to determine the ages of rock layer?
dont care
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.
Geologists determine the absolute age of rocks using?
Geologists determine the absolute age of rocks using radiometric dating techniques, such as carbon dating or uranium-lead dating. These methods rely on measuring the proportions of radioactive isotopes and their decay products in the rocks to calculate how long ago they formed.
Index fossils allow geologists to?
the first reason is to tell the age of the rocksecond is to compare itMatch rocks of the same age in diffrent regions
Why are index fossils so important to geologists?
Index fossils are very important to geologists because they identify geological time periods. Index fossils are found within a specific layer of rock- So when one finds the age of the rock layer, that is also the age of the index fossil.
Geologists would used qualitative measurement to?
- to determine the chemical nature of a rock - to determine the age of a rock by comparison
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 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.
