This argument is specious and akin to concluding that all wristwatches do not work because you happen to find one that does not keep accurate time. The age determined from the Canyon Diablo meteorite has been confirmed by hundreds of other age determinations, from both terrestrial samples and other meteorites. Many naturalists were influenced by Lyell to become "uniformitarians" who believed that changes were constant and uniform. However, Strutt's student Arthur Holmes became interested in radiometric dating and continued to work on it after everyone else had given up. Human timeline and Nature timeline.
The ratio of 40 K atoms that decay to 40 Ar to those that decay to 40 Ca is 0.
Radiometric Dating and Creation Science
Quite simply, xenoliths are one of the types of rocks that cannot be dated by the K-Ar technique. In addition, a rock melt does not contain isotopic end members that can be mechanically mixed in different proportions into the various minerals as they form, nor could such end members be preserved if they were injected into a melt. Kramer and others 78 and Arndts and Overn 8 have come to an incorrect conclusion because they have ignored several important facts about the geochemistry of Rb-Sr systems and the systematics of isochrons. The differences in the reported half lives are a consequence of improved methods and instruments, and the care with which the individual measurements were made. To my relief, Kelvin fell fast asleep, but as I came to the important point, I saw the old bird sit up, open an eye, and cock a baleful glance at me! This chord is called discordia. Hutton's theories were short on evidence at first, but by most scientists concurred that Noah's ark was more allegory than reality as they documented geological layering.