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Accuracies in Po-210 determination for lead-210 dating
Accuracies in Po determination for lead dating | SpringerLink
Lorence G. Collins email: lorencecollins gmail. Robert Gentry is a physicist who has attempted to find scientific support for the interpretation that the world-wide Noachian Flood actually occurred as reported in the book of Genesis in the Bible. His ideas are presented in a book, Creation's Tiny Mystery, where he suggests pp. In the following sections I show that the Po halos in coalified wood can also be explained by natural processes without relying on miracles or supernatural events such as the Flood. In Gentry's description of the coalified wood fragments that occur in Triassic, Jurassic, and Eocene formations of the Colorado Plateau, he claims that the wood came from trees that were growing immediately prior to the Flood Gentry, This wood consists of both compressed or uncompressed material, can be black or brown, and contains original pithy cores that may or may not contain siliceous, calcitic, or dolomitic fillings.
Lead—lead dating is a method for dating geological samples, normally based on 'whole-rock' samples of material such as granite. For most dating requirements it has been superseded by uranium—lead dating U—Pb dating , but in certain specialized situations such as dating meteorites and the age of the Earth it is more important than U—Pb dating. There are three stable "daughter" Pb isotopes that result from the radioactive decay of uranium and thorium in nature; they are Pb, Pb, and Pb. These daughter isotopes are the final decay products of U and Th radioactive decay chains beginning from U, U and Th respectively.
Frequently, the quantity of uranium and lead are measured for radiometric determination of the age of rocks. The half-life with which uranium decays to form lead is 4. After 4. However, in reality, there is more lead than uranium. It could be assumed that an undetermined quantity of lead formed directly when the rocks originated.