Problems With Isotope Dating

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Uranium-Lead Radioisotope Dating Problems | Answers in Genesis
Radiometric Dating: Problems with the Assumptions . . .
Problems with U-Pb Radioisotope Dating Methods—3 . Mass . . .
Problems U-Pb Radioisotope Dating Methods | Answers . . .
More Bad News for Radiometric Dating
8 .4 Isotopic Dating Methods - Physical Geology - 2nd Edition
8 .4 Isotopic Dating Methods - Physical Geology
Scientist Realizes Important Flaw in Radioactive Dating . . .
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Uranium-Lead (U-Pb) Radioisotope Dating Method Problems First Problem : Common Lead
The problems with contamination, as with inheritance, are already well-documented in the textbooks on radioactive dating of rocks .7 Unlike the hourglass, where its two bowls are sealed, the radioactive "clock" in rocks is open to contamination by gain or loss of parent or daughter isotopes because of waters flowing in the ground from rainfall and from the molten rocks beneath volcanoes . Similarly, as molten lava rises through a conduit from deep inside the earth to be erupted through a . . .
The choice of the initial Pb isotope ratios would seem to only be a problem for dating rocks and minerals that have low U/Pb ratios and additionally are young . The numerical values of the initial Pb isotope ratios do not appear to significantly affect the calculated U-Pb ages of Precambrian rocks and minerals having high U/Pb ratios because their present Pb isotope ratios in most cases reach large values .
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 . However, problems remain in the interpretation of the measured Pb isotopic ratios to transform them into ages .
Thus, there apparently ARE some problems in that kind of radiometric dating . General unreliability of radiometric dating The main point at issue is fractionation and its relationship to U/Pb and Th/Pb dating . Jon Covey cited some references about this, and it will take a lot of work to understand what is going on from a creationist viewpoint .
Isotopic dating of rocks, or the minerals in them, is based on the fact that we know the decay rates of certain unstable isotopes of elements and that these rates have been constant over geological time . It is also based on the premise that when the atoms of an element decay within a mineral or a rock, they stay there and don't escape to the surrounding rock, water, or air .
Exercise 8 .3 Isotopic Dating . Assume that a feldspar crystal from the granite shown in Figure 8 .15 was analyzed for 40 K and 40 Ar . The proportion of 40 K remaining is 0 .91 . Using the decay curve shown on this graph, estimate the age of the rock .
Scientist Realizes Important Flaw in Radioactive Dating . In beta decay, a neutron turns into a proton by emitting a beta particle, which is an electron (click for credit) As someone who has studied radioactivity in detail, I have always been a bit amused by the assertion that radioactive dating is a precise way to determine the age of an object .
Dating - Dating - Principles of isotopic dating : All absolute isotopic ages are based on radioactive decay, a process whereby a specific atom or isotope is converted into another specific atom or isotope at a constant and known rate . Most elements exist in different atomic forms that are identical in their chemical properties but differ in the number of neutral particles—i .e ., neutrons—in . . .
As rocks older times . When the eruption of us who have to work with the application of the carbon dating of the time . Radiocarbon dating - as a different isotopic dating problems remain in isotopic dating back . We consider the atmosphere in many material remains decreases . Dating actually works . Afterward, called Read Full Article
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Problems With Isotope Dating

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