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xenolithic

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  • It is based on measurement of the product of the radioactive decay of an isotope of potassium (K) into argon (Ar) Examples of incorporation of extraneous 40Ar include chilled basalts and inclusions of older xenolithic material – such samples should be avoided. — “K–Ar dating - Wikipedia, the free encyclopedia”, en.wikipedia.org
  • K–Ar dating is part of WikiProject Geology, an attempt at creating a standardized, informative, comprehensive and easy-to-use geology resource. Molten magma can be contaminated by inclusion of older xenolithic material such as chilled deep sea basalts that may not completely outgas. — “Talk:K–Ar dating - Wikipedia, the free encyclopedia”, en.wikipedia.org

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