A further example from a lava flow off the coast of hawaii shows similar discrepancies if dated with the carbon14 method the flow appears to be less than 17000 years old but dating with the potassium argon method gives dates of 160000 to 43 million years.
radiometric dating how radiometric dating works in general why methods in general are inaccurate why kar dating is inaccurate the branching ratio problem.
carbon14 14 c or radiocarbon is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutronsits presence in organic materials is the basis of the radiocarbon dating method pioneered by willard libby and colleagues 1949 to date archaeological geological and hydrogeological samples carbon14 was discovered on february 27 1940 by martin kamen and sam ruben.
The alkaline earth metal strontium 38 sr has four stable naturally occurring isotopes 84 sr 056 86 sr 986 87 sr 70 and 88 sr 8258 its standard atomic weight is 87621 only 87 sr is radiogenic it is produced by decay from the radioactive alkali metal 87 rb which has a halflife of 488 215 10 10 years ie more than three times longer than the current age of the.
age of the earth 101 evidences for a young age of the earth and the universe by don batten published 4 june 2009 last updated 13 september 2017 there are many categories of evidence for the age of the earth and the cosmos that indicate they are much younger than is generally asserted today.