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geochronology |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.04 sec. |
geochronologyDating and interpretation of geologic events in the history of the Earth. The classical technique of geochronology was stratigraphy, including faunal succession. Since the mid 20th century, radiometric dating has provided absolute age data to supplement the relative dates obtained from the fossil record. Radiometric dating is based on the principle that radioactive isotopes in geologic material decay at constant, known rates to daughter isotopes. See also carbon-14 dating. |
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New regional bedrock mapping, together with extensive U-Pb geochronology outline a complex record of deposition, magmatism, deformation, and metamorphism over the interval between 3. Geochronology for polycyclic aromatic hydrocarbon contamination in sediments of the Saguenay Fjord. Carl Swisher III of the Berkeley Geochronology Center in California, concluded that it was ``no longer chronologically plausible'' to argue that the Java Homo erectus evolved into Asian Homo sapiens. |
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geochronology
