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Radiometric or Radio-active decay dating involves looking at certain radio-active isotopes in the rocks of the earth, such as potassium and argon. Certain Isotopes have a half life and decay into another isotope after a certain amount of years. Geochemists use these types of dating to determine the age of rocks and how long the crust has been forming and moving.
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How do you tell how old a fossil is by the rock layer?
by relative dating or radiometric dating
What does radiometric dating tell geologist about some rocks and minerals?
their ages
What can radiometric dating tell us about the age of rock that law of superposition cannot?
Radiometric dating can give us the absolute age of the rock. Trace fossils and the Law of Superposition can only provide the relative age of the rock. Radiometric dating is far more specific in formation analysis.
What type of dating involves half-lives and can tell in which geologic period a rock was formed?
This is called absolute, isotopic, or radiometric dating.
What evidence is given to tell how old the moon is?
Using standard radiometric dating of rocks returned from the Moon by the Apollo missions.
What radiometric dating tell us?
It tells us the absolute age of something, It is used when scientists want to see how old a fossil is.
Can use radiometric dating on all minerals to tell their absolute age?
No, radiometric dating can only be used on certain minerals that contain radioactive isotopes. These minerals include zircon, potassium feldspar, and biotite, among others. Not all minerals contain radioactive isotopes, so radiometric dating cannot be applied to all minerals.
When was Earth's discovery?
Earths discovery is when believed to when god made earth, with Adam and eve with it it was full of wildlife and things to help Adam and Eve through there journey. Scientificly it was discovered six thousand years ago. you will hear popular science say that it is 4.5 billion years old, but there is no way to tell because radiometric dating methods can only date back approx. one million years. over ninety percent of radiometric dating results agree with the theory that the earth is six thousand years old. also they have found tissue and marrow in some dino bones agreeing with this theory.
How can fossils be used to determine the relative ages?
They are able to tell the order in which events occured, NOT how long ago they occured.Identify the order in whicih rock units formed(:rocks makes babys with apenis
How could you travel through the mantle?
It's impossible but many scientists and other smart people are working on it. we can tell whats under the earths crust by the vibrations produced through earthquakes ect
Does radioactive dating allow us to find relative or absolute age?
Absolute dating of rock is achieved by radiometric dating techniques. Relative dating is achieved by determining the position of rock in strata, and the appearance of certain index fossils. Relative dating was a precursor to absolute dating. Before absolute dating techniques were discovered, the age of a rock was a guesstimate at best. Radioactive dating allows us to find an approximate date. So if something is dated about a thousand years ago plus or minus a hundred years the object may be from sometime between 1,000 and 1,200 A.D.
What do volcanoes tell scientists about the crust or mars?
They tell scientists when the wolrd will in
