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Frozen fossils would need radio-uranium dating. Which you would use a trace amounts of hemophilia mixed with a vat of boiling uranium, to produce micro organisms, then you can date these organisms.
well sometimes the U238 radioactive ion can be used to date the fossils and figure out how old they are.
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Why are their so many well-preserved fossils?
There are so many well preserved fossils because there are so many fossils, some will be well preserved. In certain locations at certain times the conditions will be right for preserving living tissues.
Which radiometric dating method would be ujsed to date objects found at effigy mounds?
Carbon-14
What are some methods of identifying the age of fossils?
it can be matched to another fossil that can be visually identified as being from the same animal, and then can be matched up to the period the animal lived...or the second method would be to do a radio carbon dating test....but the fossil would have to be fairly old because the carbon dating can tell you how old something is within a few thousand years.
How is the relative age of fossils determined?
It is generally determined by how long it has waisted away or if it has reached a certain disintegrating phase (an example would be a half-life). By learning how long a fossils minerals and dead cells have wasted away biologists can learn how old a fossil is relative to a period or our own time on earth.
What are fossils used to determine the relative ages of rock layers?
The age of a fossil would ordinarily be considered the age of the rock in which it was entrained. A common exception is where burrowing organisms, such as snails and worms, excavate their way into a soft rock. But even in these cases, their age would not be too different (in geological terms) from the rock age. The age of a rock may be determined by radio isotope dating, or more commonly and cheaper, by stratigraphy.
To determine the absolute age of rocks and fossils geologists use?
Geologists use radiometric dating methods, such as carbon-14 dating or uranium-lead dating, to determine the absolute age of rocks and fossils. These methods rely on the decay of radioactive isotopes in the minerals within the rocks to calculate their age. By measuring the ratio of parent isotopes to daughter isotopes, geologists can determine the age of the rocks or fossils.
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.
Which radiometric-dating method would be most apprioate for dating artifacts found at effi gy mounds?
Carbon-14 dating would be the most appropriate radiometric dating method for dating artifacts found at effigy mounds. This method is commonly used for dating organic materials such as wood, charcoal, or bone, which are typically found in archaeological sites like effigy mounds.
How do people know dinosaurs lived?
Our most provident evidence would be carbon dating and fossils.
Why are their so many well-preserved fossils?
There are so many well preserved fossils because there are so many fossils, some will be well preserved. In certain locations at certain times the conditions will be right for preserving living tissues.
Can you use radiocarbon dating on shale containing leaf fossils?
Radiocarbon dating is not typically used to date ancient fossils in shale because the technique is most effective for dating organic materials up to around 50,000 years old. Shale containing leaf fossils is likely much older than this, so other dating methods like relative dating or isotopic dating would be more appropriate.
How would a geologist determine the age of rock layers and fossils if the geologist found a never before seen rock layer that contain fossils?
First step would be relative-dating: examining the new unit in the context of known rocks above and below it. Then look for correlative formations & fossils elsewhere.
What method would archaeologists use to date the remains of cro-magnons?
Radiocarbon dating.
Is a mammoth in frozen ice a trace fossil?
No, a mammoth frozen in ice would not be considered a trace fossil. Trace fossils are indirect evidence of ancient life activities, like footprints or burrows, while frozen mammoths are preserved remains of the actual organism.
Could a woman who lived fifteen thousand years ago found frozen in a glacier be considered a fossil?
No, a woman frozen in a glacier 15,000 years ago would not be considered a fossil. Fossils are remains or traces of once-living organisms that have been preserved in the Earth's crust. The frozen woman would be considered an ancient human specimen or mummy.
What would be the two methods of dating fossils and explain each?
Two methods of dating fossils are relative dating, which determines the age of a fossil in relation to other fossils or rock layers, and radiometric dating, which uses the decay of radioactive isotopes within the fossil to determine its age based on half-life calculations. Relative dating relies on the principle of superposition and stratigraphy, while radiometric dating is based on the principles of radioactive decay.
Which radiometric dating method would be ujsed to date objects found at effigy mounds?
Carbon-14
