| | By about 1930, J. H. Jeans was arguing for an age of the Earth of around two billion years.<ref>Universal History of the World, p.76.</ref> | | By about 1930, J. H. Jeans was arguing for an age of the Earth of around two billion years.<ref>Universal History of the World, p.76.</ref> |
| − | In his 1956 paper named ''Age of Meteorites and the Earth'', Claire Patterson, using ''“certain assumptions which are apparently justified,”'' introduced for meteor age a figure of '''4.55 ±0.07 × 10<sup>9</sup>yr.''' and commented that since earth lead meets the requirement for definition of ''“the isotopic evolution of lead for any meteoritic body,”'' it is therefore ''“believed that the age for the earth is the same as for meteorites”'' and that ''"this is the time since the earth attained its present mass"''.<ref>{{cite web |title= Age of meteorites and the earth |author= Claire Patterson |url=http://www.mantleplumes.org/WebDocuments/Patterson1956.pdf |accessdate= }}</ref> This figure gradually became a scientific dogma that rarely anyone has dared to question. Henry Morris explains that the unprovable assumptions are not the only problem with radiometric dating. One huge concern is that the results published are only a selected sample, chosen especially to agree with preconceived ideas about the earth, life, and [[evolution]].<ref>{{cite web |title=Once upon a time … A Review of The Mythology of Modern Dating Methods by John Woodmorappe |author=Michael J. Oard |url=http://creation.com/once-upon-a-time |accessdate=November 9, 2014}}</ref> | + | In his 1956 paper named ''Age of Meteorites and the Earth'', Claire Patterson, using ''“certain assumptions which are apparently justified,”'' introduced for meteor age a figure of '''4.55 ±0.07 × 10<sup>9</sup>yr.''' and commented that since earth lead meets the requirement for definition of ''“the isotopic evolution of lead for any meteoritic body,”'' it is therefore ''“believed that the age for the earth is the same as for meteorites”'' and that ''"this is the time since the earth attained its present mass"''.<ref>{{cite web |title= Age of meteorites and the earth |author= Claire Patterson |url=http://www.mantleplumes.org/WebDocuments/Patterson1956.pdf |accessdate= }}</ref> In spite of cautions and skepticism advised by the authors, this figure gradually became a scientific dogma that rarely anyone has dared to question.<ref>{{cite journal |author=Ralph W. Matthews |title=Radiometric dating and the age of the Earth |date=December 1982 |publisher=Creation |volume=5 |issue=1 |pages=41–44 |quote=In spite of cautions and skepticism advised by the authors this number has been widely and enthusiastically accepted and is usually quoted as if the evidence was decisive and conclusive. It has assumed something of the status of a universal constant to which all other data must be fitted, thus it has become common practice to assume that data which does not fit this result is either wrong or unintelligible. |accessdate=December 30, 2014}}</ref> Henry Morris explains that the unprovable assumptions are not the only problem with radiometric dating. One huge concern is that the results published are only a selected sample, chosen especially to agree with preconceived ideas about the earth, life, and [[evolution]].<ref>{{cite web |title=Once upon a time … A Review of The Mythology of Modern Dating Methods by John Woodmorappe |author=Michael J. Oard |url=http://creation.com/once-upon-a-time |accessdate=November 9, 2014}}</ref> |
| | When in 1972 N.H. Gale tried to corroborate this established figure, he discovered that U-Pb ages ''"showed apparent large excess of radiogenic lead compared with the amount expected from the decay of Uranium in the meteorites over 4.5AE. ... For each of the 4 meteorites there was an excess of radiogenic lead not supported by uranium decay over 4.5AE.”'' After short analysis: | | When in 1972 N.H. Gale tried to corroborate this established figure, he discovered that U-Pb ages ''"showed apparent large excess of radiogenic lead compared with the amount expected from the decay of Uranium in the meteorites over 4.5AE. ... For each of the 4 meteorites there was an excess of radiogenic lead not supported by uranium decay over 4.5AE.”'' After short analysis: |