Uranium lead dating meteorites

However, from a biblical perspective the earth was created by God on Day 1 of the Creation Week before the sun and the rest of the solar system were created on Day 4, all only about 6000 or so years ago.Yet the earth would still have had an initial (created) Pb isotopic endowment.All the unprovable assumptions ultimately depend on an assumed deep time history.Its rejection is recognized as fatal to the earth’s claimed age of billions of years.These new rocks rapidly accumulated more Pb isotopes due to the concurrent accelerated radioactive decay of U and Th in them during the Flood.Thus, without being able to unequivocally distinguish the daughter Pb atoms produced by in situ U and Th decay from the initial Pb atoms in a mineral or rock, it is impossible to determine their absolute U-Pb ages.

Many in both the scientific community and the general public around the world thus remain convinced of the earth’s claimed great antiquity.U-Pb radioisotope dating is now the absolute dating method of first choice among geochronologists, especially using the mineral zircon.A variety of analytical instruments have also now been developed using different micro-sampling techniques coupled with mass spectrometers, thus enabling wide usage of U-Pb radioisotope dating.The stunning improvements in the performance of mass spectrometers during the past four or so decades, starting with the landmark paper by Wasserburg et al.

(1969), have not been accompanied by any comparable improvement in the accuracy of the decay constants (Begemann et al.

Once radioactive decay of U and Th started after creation, daughter Pb isotopes were added inside the earth.

Uranium lead dating meteorites comments

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