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WordNet-Online
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Definitions from the WebRadiometric DatingDescription:Radiometric dating is a scientific method used to determine the age of rocks, minerals, and other geological materials based on the decay rate of radioactive isotopes. It provides an accurate estimation of the age of fossils and Earth's geological formations. Sense 1: Geological DatingIn geology, radiometric dating measures the ratio of isotopes present in a sample to calculate its age. By analyzing the decay of radioactive elements such as uranium or carbon, scientists can determine the age of rocks and fossils. Example: The radiometric dating of the fossilized dinosaur bones suggested an age of approximately 65 million years. Sense 2: Archaeological DatingIn archaeology, radiometric dating is used to determine the age of artifacts and archaeological sites. By examining the decay of isotopes found in organic materials or associated minerals, archaeologists can establish chronological sequences and understand ancient civilizations. Example: Radiometric dating of pottery fragments discovered in the excavation site revealed that the ancient civilization thrived around 3000 BCE. Sense 3: Astrophysical DatingIn astrophysics, radiometric dating is applied to determine the age of celestial objects, such as stars and planets. By analyzing the isotopic composition and decay rates of elements found in meteorites and rocks, scientists can uncover the history and formation of the universe. Example: Through radiometric dating of the lunar samples brought back by the Apollo missions, scientists determined that the Moon is approximately 4.5 billion years old. Sense 4: Local Usage - SlangIn some local contexts, radiometric dating is humorously used to refer to the process of estimating the age of a person based on their appearance or behavior. Example: "I can totally radiometrically date that guy, he must be in his mid-40s with all that dad humor!" Related Products: | ||||
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