Tephra and Volcanic Ash Analysis
Tephrochronology is the use of volcanic ash layers to provide a chronological framework that can be applied in a range of disciplines, from volcanology to archaeology. Tephra layers form isochrons that mark a moment in time (the time of deposition). Reliable dates (radiometric, historical or ice cor...
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| Format: | Other/Unknown Material |
| Language: | unknown |
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Wiley
2018
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| Online Access: | http://dx.doi.org/10.1002/9781119188230.saseas0571 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F9781119188230.saseas0571 https://onlinelibrary.wiley.com/doi/pdf/10.1002/9781119188230.saseas0571 |
| Summary: | Tephrochronology is the use of volcanic ash layers to provide a chronological framework that can be applied in a range of disciplines, from volcanology to archaeology. Tephra layers form isochrons that mark a moment in time (the time of deposition). Reliable dates (radiometric, historical or ice core) can be “transferred” to any location where a particular tephra isochron is found, providing an independent check of other dating methods. Tephra isochrons can also connect the different locations where they are found and, in particular, archaeological sites with the wider paleolandscape. The identification of tephra layers invisible to the naked eye (cryptotephrochronology) has expanded the reach of tephrochronology to more distal areas downwind of the major volcanically active regions, enabling global correlations and connections. |
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