Comparar métodos
Examine os métodos selecionados lado a lado; as linhas que diferem ficam destacadas.
| Datação Urânio-Tório× | Datação por Ressonância de Spin Eletrônico× | |
|---|---|---|
| Área | Arqueologia | Arqueologia |
| Família | Process / pipeline | Process / pipeline |
| Ano de origem≠ | 1955 | 1980s |
| Autor original≠ | Harmon Craig | Michael Aitken |
| Tipo≠ | Decay series dating technique | Paramagnetic resonance dating technique |
| Fonte seminal≠ | Edwards, R. L., Chen, J. H., & Wasserburg, G. J. (1987). U-238, U-234 and Th-230 in seawater. Geochimica et Cosmochimica Acta, 51(5), 1213-1225. link ↗ | Grün, R. (1989). Electron spin resonance (ESR) dating. Quaternary International, 1, 65-109. DOI ↗ |
| Outros nomes≠ | U-Th dating, thorium-230 dating | ESR dating, electron paramagnetic resonance dating, EPR dating |
| Relacionados | 4 | 4 |
| Resumo≠ | Uranium-thorium (U-Th) dating is a chronometric method that determines the age of carbonates, shells, bones, and coral by measuring the ratio of uranium isotopes to thorium-230. First applied by Harmon Craig in the 1950s, it exploits the natural radioactive decay chain of uranium. U-Th dating is particularly valuable for dating materials from 500 to 500,000 years old, filling a crucial chronological gap between radiocarbon and potassium-argon dating. | Electron spin resonance (ESR) dating is a chronometric method that determines the age of bones, teeth, mollusk shells, and sediments by measuring accumulated radiation-induced unpaired electrons. Developed by Michael Aitken in the 1980s, ESR detects free radicals trapped in mineral crystal structures. Unlike luminescence techniques that require heating or light exposure, ESR directly measures paramagnetic defects, making it particularly valuable for dating dental and skeletal remains that are inaccessible to other methods. |
| ScholarGateConjunto de dados ↗ |
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