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What else can I help you with?
What fossils are most useful for correlation tend to be?
Fossils that are the most useful for correlation tend to be found in various types of rocks, are widespread, and easy to recognize. One rock type where fossils are found is sedimentary rocks.
Is stratigraphic dating accurate for dating fossils?
Carbon dating and radioactive dating are more effective, assuming those arn't the same thing. =]
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.
What two ways do scientist use fossils to determine the environmental changes?
its radioactive dating and relative dating
Do radiometric dates for fossils often come directly from the fossils themselves?
Radiometric dating comes from the fossils themselves very rarely. Most of the time the dating method interprets the strata surrounding the fossil.
Carbon 14 is useful for dating fossils that are?
Carbon 14 is useful for dating organic remains less than 60-70,000 years old. It is not useful for fossils as the vast majority are much older than that.
A researcher who uses carbon dating on anciet items?
The half life of C14 is about 5700 years, so items that are a few multiples of this time are suitable for carbon14 dating. Most archaeological items are suitable, and some young fossils.
What do scientists use to determine a fossil's relative age?
Carbon14 dating (isotopic dating)
Why would carbon dating not be a useful way to date coelopyhsis fossils?
Carbon dating is not useful for dating coelophysis fossils because this method is effective only for organic materials up to about 50,000 years old. Coelophysis lived during the Late Triassic period, approximately 210 million years ago, far beyond the range of carbon dating. Additionally, fossils are typically mineralized and do not contain the organic carbon necessary for this dating technique. Thus, other methods, such as radiometric dating of surrounding volcanic layers, would be more appropriate for determining the age of coelophysis fossils.
In what ways are fossils useful to geologists?
In what ways are fossils useful to geologist?
What Limitations are there of using carbon14 to date rocks?
The main limitations of using Carbon14 dating to find the age of something that is carbon base are firstly the possibility that carbon may be absorbed by some things making it more difficult to get an absolutely accurate age and secondly, with Carbon14 only having a half life of 5,568 years the maximum theoretical limit for detection is 100,000 years.
Why would uranium-238 not be useful in determining the age of a spear that is thought to be 5000 years old?
Uranium dating is useful for long periods of time - e.g. 109 years. For fossils is recommended the method with 12C.
What is the connection between fossils and half-life dating?
The connection between fossils and half- life dating is that half-life dating is to determined how old the fossil is
What fossils are useful in determining the relative age of rocks?
Index fossils
Would strontium-90 be useful for determining the age of fossils explain why or why not?
Strontium-90 would not be useful for determining the age of fossils because it has a relatively short half-life of about 29 years, which means it decays too quickly to be effective for dating ancient fossils. Fossils are typically millions of years old, so isotopes with longer half-lives, like carbon-14 or uranium-238, are more suitable for dating. Additionally, strontium-90 is primarily produced from nuclear reactions and is not naturally occurring in significant amounts in geological contexts.
True or False Fossils may be dated by either the relative dating method which determines the relative order of fossils or by the absolute dating method which uses radioactive isotopes?
True. Fossils can be dated using both relative dating methods, which determine the sequence of events in which fossils occurred, and absolute dating methods, which rely on radioactive isotopes to calculate the age of fossils.
How is fossils useful?
they are useful for alot of things like petrol
