Radiometric dating reliable because
Studies prove beyond a doubt that billions of years have ticked by. Dalrymple, an expert in radiometric dating with lots of hands-on experience, puts the percentage of bad dates at only 5-10 percent…When you consider that each radiometric method is subject to different types of error, that the different “clocks” run at different speeds, such an agreement would be extremely rare on the basis of pure chance.
In a number of instances, more than you might imagine, dates are further corroborated by methods that have nothing to do with radioactivity.
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“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…Some of the “errors” are not errors at all but simply results obtained in the continuing effort to explore and improve the methods and their application.”[v] “Studies…are routinely done to ascertain which materials are suitable for dating and which are not, and to determine the cause of sometimes strange results.” For example, the 1801 lava flow in Hawaii was dated to be much older because of the foreign rocks that were included in the magma that were originally much older.[vi] As another example, a living freshwater mussel was dated around two thousand years old due to the old carbon that is within the ocean.[vii] This is called “the reservoir effect,” which “is well known by scientists, who work hard to understand the limitations of their tools…Contrary to creationist propaganda, limitations of a tool do not invalidate the tool.”[viii] “Reservoir corrections for the world oceans can be found at the Marine Reservoir Correction Database.”[ix] Radiocarbon dates can also be skewed because the dated plants are within 200 meters of volcanic vents and are thus getting old Carbon, but “200 m away from the source, plants yielded an age in agreement with that expected.”[x] So for most wood, “there is no such problem because wood gets its carbon straight from the air, complete with a full dose of C-14.”[xi] Creationists claim that C-14 has been found in coal, oil, and natural gas and so they can’t be millions of years old.Radiometric dating can even work when elements move in or out of rocks.The Earth has been very stable and a lot is known about the composition of the Earth throughout its history, thus scientists are able to make very accurate descriptions and estimations of how the elements have reacted.Evidence has to then be interpreted, which is not a fact…but evidence strengthening or weakening a specific hypothesis or theory.So there can be multiple ways of interpreting the same evidence.