How is radioactive dating used to interpret the fossil record Top sex chat sites of virgin girls

Scientists attempt to check the accuracy of carbon dating by comparing carbon dating data to data from other dating methods.

Other methods scientists use include counting rock layers and tree rings.

This technique is widely used on recent artifacts, but educators and students alike should note that this technique will not work on older fossils (like those of the dinosaurs alleged to be millions of years old).Other forms of radioactive dating are based on igneous rocks.Since fossils are always found in sedimentary rocks these forms of radioactive dating can not be used in sedimentary layers.Igneous incursions into sedimentary layers can be dated using Uranium decay. Again small changes in the amount of Uranium or the amount of Lead can lead to large differences in the estimated age of the igneous layers.Also the calculation are based on assumptions that the layer started with no lead and 100% uranium and no erosion has occurred.

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