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| Tephrochronology× | Datazione per Luminescenza Otticamente Stimolata× | |
|---|---|---|
| Campo | Archeologia | Archeologia |
| Famiglia | Process / pipeline | Process / pipeline |
| Anno di origine≠ | 1944 | 1985 |
| Ideatore≠ | Sigurdur Thorarinsson | David Huntley |
| Tipo≠ | Volcanic marker dating technique | Luminescence dating technique |
| Fonte seminale≠ | Thorarinsson, S. (1944). Tefrokronologiska studier på Island. Geografiska Annaler, 26(1-2), 1-217. link ↗ | Huntley, D. J., Godfrey-Smith, D. I., & Thewalt, M. L. (1985). Thermoluminescence dating of ocean sediments. Canadian Journal of Earth Sciences, 22(3), 423-427. link ↗ |
| Alias | tephra chronology, volcanic ash dating | OSL dating, optical dating |
| Correlati | 4 | 4 |
| Sintesi≠ | Tephrochronology is a chronometric and stratigraphic technique that uses volcanic ash layers (tephra) as time markers to date and correlate archaeological and geological deposits. Pioneered by Icelandic geologist Sigurdur Thorarinsson in 1944, it exploits the fact that large explosive volcanic eruptions deposit distinctive ash layers across vast geographic regions instantaneously in geological time. Each tephra layer serves as a chronological marker horizon that can be identified, characterized, and dated, enabling archaeologists to synchronize deposits across multiple sites. | Optically stimulated luminescence (OSL) dating is a chronometric method that determines the age of sedimentary materials by measuring light-induced electron release from mineral grains. Developed by David Huntley and colleagues in the 1980s, it measures the time elapsed since sediment was last exposed to sunlight. This technique is widely used in archaeology, geology, and paleoenvironmental studies to date deposits ranging from a few decades to several hundred thousand years old. |
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