How reliable is potassium argon dating

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Detailed studies of these fossils provide new insights into human evolution, such as the origin of locomotion and cultural activity, and the evolution of the brain, among many other complex features that have come to define humanity.Even during the time this manuscript was written, new hominid discoveries in Ethiopia and Kenya were announced that trace our earliest ancestors further back into the Pliocene.After study and discussion of this question, I now believe that the claimed accuracy of radiometric dating methods is a result of a great misunderstanding of the data, and that the various methods hardly ever agree with each other, and often do not agree with the assumed ages of the rocks in which they are found.I believe that there is a great need for this information to be made known, so I am making this article available in the hopes that it will enlighten others who are considering these questions.Yet even this seminal K-Ar dating study was plagued by the seemingly insurmountable problem of contamination.The principal materials for dating East Africa hominid sites are volcanic ashes, yet many of these ashes are not deposited as primary air fall (Greek for ash).Therefore, my main concern is with rocks of the Cambrian periods and later.Back to top Radioactive elements decay gradually into other elements.

Such numerical calibrations are crucial to understanding rates and timing of evolutionary change.This grain-discrete method now permits precise and accurate ages to be measured on single grains and, thus, contaminating grains can be eliminated.If you were to read an article every day from this site it would take you 20 years to read them all.We are told that these methods are accurate to a few percent, and that there are many different methods.We are told that of all the radiometric dates that are measured, only a few percent are anomalous.

When one considers the power of God, one sees that any such conclusions are to some extent tentative. Some fossils are found in Precambrian rocks, but most of them are found in Cambrian and later periods.

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