radiometric dating of the earth meteorites

Earth and Planetary Science Letters. The answer is complicated: It involves everything from observation to complicated mathematics to understanding the elements that make up our planet. These are released as radioactive particles there are many types. Thus the large majority of historic lava flows that have been studied either give correct ages, as expected, or have quantities of excess radiogenic 40 Ar that would be insignificant in all but the youngest rocks. This method can date archaeological materials, such as ceramics, and minerals, like lava flows and limestones. Meteoritics and Planetary Science. It also has to be assumed that the rate of decay of the parent isotopes in the past has occurred constantly at the same rates measured today.

RADIOMETRIC DATING OF THE EARTH METEORITES / janiceclark.net

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