Two Ways Radiometric Dating Can Be Used To Establish The Age Of A Fossil

Discuss two ways that radiometric dating can be used to . . .
What are two ways that radiometric dating can be used to . . .
Discuss two ways that radiometric dating can be used to . . .
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High School . answered . Discuss two ways that radiometric dating can be used to establish the age of a fossil . 1 . See answer . JackelineMungin898 is waiting for your help . Add your answer and earn points . ruberube . Direct testing of the fossil material itself or materialsassociated with it, and indirect testing of material instratigraphic contexts . . .
There are two methods used to determine the age of a rock or fossil . The first is carbon dating and the second is radiometric dating .
Discuss two ways that radiometric dating can be used to establish the age of a fossil . Answer Direct testing of the fossil material itself or materials associated with it, and indirect testing of material in stratigraphic contexts that bookend the fossil (i .e . a lava flow over the top of the layer a fossil is contained in) .
Discuss two ways that radiometric dating can be used to establish the age of a fossil . Uranium 238 is most commonly used to determine the age of a fossil , while carbon-14 is used to determine the age of mummies, tissues and bones .
As most fossils are found in clastic sedimentary rocks, which are made of weathered and eroded minerals and bits of rock of various ages , it is unlikely to be able to make an radiometric age determination of a rock in which a fossil is found . The age of a rock containing fossils can usually be narrowed down by measuring the ages of metamorphic or igneous rocks in stratigraphic relation to it, such as a lava flow on top of a layer of sedimentary rock .
There are two main methods determining a fossils age , relative dating and absolute dating . Relative dating is used to determine a fossils approximate age by comparing it to similar rocks and fossils of known ages . Absolute dating is used to determine a precise age of a fossil by using radiometric dating to measure the decay of isotopes, either within the fossil or more often the rocks associated with it . Relative Dating
Radioactive dating uses the decay rates of radioactive substances to measure absolute ages of rocks, minerals and carbon-based substances, according to How Stuff Works . Scientists know how quickly radioactive isotopes decay into other elements over thousands, millions and even billions of years .
The best-known radiometric dating techniques include radiocarbon dating , potassium-argon dating , and uranium-lead dating . By establishing geological timescales, radiometric dating provides a significant source of information about the ages of fossils and rates of evolutionary change, and it is also used to date archaeological materials, including ancient artifacts .
There are different methods of radiometric dating . Uranium-lead dating can be used to find the age of a uranium-containing mineral . Uranium-238 decays to lead-206, and uranium-235 decays to lead-207 .
Uranium-Lead (U-Pb) dating is the go- to method for dinosaur age samples, being able to accurately date rocks (yes, rocks, we'll come to that later) between 1 million and 4 .5 billion years old 3 . Two decay chains are measured in this type of radiometric dating , 238 U → 206 Pb and 235 U → 207 Pb, via a cascade of alpha and beta decay with half-lives of around 4 .5 billion years and 700 million years, respectively 4 .
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Two Ways Radiometric Dating Can Be Used To Establish The Age Of A Fossil