Absolute age dating problems
The time it takes for one half of the parent atoms to decay to the daughter atoms is called the half-life. The most reasonable explanation seems to be that the rates of decay have been different at some point in the past. Other case studies by the RATE group show dates that vary greatly depending on the sample and dating technique used. Instead, layers that contain datable igneous rocks above or below a fossil-bearing layer are used to estimate the age of the fossil. There is also a difference in the timescale used to explain the layers.
This method works because some unstable radioactive isotopes of some elements decay at a known rate into daughter products. If these items were truly more than , years old, there should be no detectable carbon present in them. Carbon is supposed to allow dating of objects up to 60, years. No Contamination The problems with contamination, as with inheritance, are already well-documented in the textbooks on radioactive dating of rocks. How is 14C used for dating? Do all scientists accept the carbon dating method as reliable and accurate? The plants and animals buried in the recent Flood could account for a large change in the ratios and demonstrate the false assumption of carbon equilibrium. This means that the uranium must have decayed very rapidly over the same 6, years that the helium was leaking. The 4, year age of the oldest tree, named Methuselah, corresponds to the date of the Flood given by Ussher and others. However, this does not necessarily correlate to years because multiple rings can grow in one year. Or inflowing water may have mixed isotopes into the rocks. In radiometric dating techniques, how do we know how much parent material the sample started with? There is an obvious discordance disagreement in the data. The amount of radioactive carbon 14C that had been in the organism when it was alive begins to decrease at death as it loses nuclear particles through radioactive decay. It is not unreasonable to assume that God used the energy of accelerated radioactive decay to initiate and drive the major geologic changes in the earth that accompanied the Flood. Uniformitarian geologists assume the slow rate of deposition as observed today for the past. Using various radiometric dating methods to measure the ages of rock samples consistently produced ages that varied greatly. The assumption that there has been no loss or gain of the isotopes in the rock assumption 2 does not take into account the impact of weathering by surface and ground waters and the diffusion of gases. Also, samples taken a few feet apart can give ages that differ by many hundreds of millions of years. There has been no loss or gain of the parent or daughter isotopes from the rock. Radiocarbon Dating 14C Formation Radiocarbon dating is a widely used method of obtaining absolute dates on organic material. Understanding what those assumptions are is important. In a way this field, called geochronology, is some of the purest detective work earth scientists do. Each ring represents one year; the outside rings, near the bark, are the youngest. Most radiometric dating techniques must make three assumptions: Carbon dating is used to date things that were once living. Dating the Cardenas Basalt, a layer near the bottom of Grand Canyon, and a volcanic layer from near the top of Grand Canyon produced an amazing result.
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