Topic: Potassium-argon (K-Ar) dating (video) | Khan Academy

How K-Ar dating can be used to date very old volcanic rock and the things that might be buried in between. How K-Ar dating can be used to date very old volcanic rock and the things that might be buried in between. If you're seeing this message, it means we're having trouble loading external resources on our website.

1 Re: Potassium argon dating is used for

Potassium-argon Dating 'Potassium argon dating is another alternative that could be used. Radioactive potassium decays to an isotope of argon. Argon is a gas, like nitrogen – so it could be lost from the sample.

2 Re: Potassium argon dating is used for

Potassium-argon dating | Britannica.com The potassium-argon dating method has been used to measure a wide variety of ages. The potassium-argon age of some meteorites is as old as 4,500,000,000 years, and volcanic rocks as young as 20,000 years old have been measured by this method.

3 Re: Potassium argon dating is used for

Potassium-argon dating - definition of potassium-argon. potassium-argon dating n (General Physics) a technique for determining the age of minerals based on the occurrence in natural potassium of a small fixed amount of radioisotope 40K that decays to the stable argon isotope 40Ar with a half-life of 1.28 × 109 years. Measurement of the ratio of these isotopes thus gives the age of the mineral. Compare.

4 Re: Potassium argon dating is used for

Potassium-Argon Dating Methods: K-Ar and Ar-Ar Dating The potassium-argon (K-Ar) isotopic dating method is especially useful for determining the age of lavas. Developed in the 1950s, it was important in developing the theory of plate tectonics and in calibrating the geologic time scale.

5 Re: Potassium argon dating is used for

Potassium-Argon Dating I - creation-science-prophecy.com This page, Potassium-Argon Dating I, is dedicated to looking at the assumptions that are made in Potassium-Argon age determinations. The second page, Potassium-Argon Dating II , is dedicated to looking at what questions are needed so that a model can be suggested.

6 Re: Potassium argon dating is used for

Hi. Author well done!

7 Re: Potassium argon dating is used for

How potassium-argon dating works - creation.com How potassium-argon dating works Published: 24 June 2008 (GMT+10) Photo Wikipedia by Tas Walker. One of the most widely used dating methods is the potassium-argon method, which has been applied to ‘dating’ rocks for decades, especially igneous rocks that have solidified from molten magma.

8 Re: Potassium argon dating is used for

Dating Techniques | Encyclopedia.com Potassium-argon dating has been used to date volcanic layers above and below fossils and artifacts in east Africa. Radiocarbon dating Radiocarbon is used to date charcoal, wood, and other biological materials.

9 Re: Potassium argon dating is used for

What is potassium argon dating used for? | Yahoo Answers Potassium–argon dating or K–Ar dating is a radiometric dating method used in geochronology and archeology. It is based on measurement of the product of the radioactive decay of an isotope of potassium (K) into argon (Ar).

10 Re: Potassium argon dating is used for

K–Ar dating - Wikipedia Potassium–argon dating, abbreviated K–Ar dating, is a radiometric dating method used in geochronology and archaeology. It is based on measurement of the product of the radioactive decay of an isotope of potassium (K) into argon (Ar).