tephrochronology

ALASKA VOLCANO OBSERVATORY GLOSSARY
The collection, preparation, petrographic description, and approximate dating of tephra.

Glossary of volcanic terms. - University of Wisconsin Oshkosh. . 2001.

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  • Tephrochronology — is a geochronological technique that utilises discrete layers of tephra mdash;volcanic ash from a single eruption mdash;to create a chronological framework in which paleoenvironmental or archaeological records can be placed. Such an established… …   Wikipedia

  • tephrochronology — tephrochronological /tef roh kron l oj i keuhl/, adj. /tef roh kreuh nol euh jee/, n. Geol. a geochronologic technique based on the dating of layers of volcanic ash. Cf. tephra. [1940 45; < Sw tefrokronologi, equiv. to tefr(a) volcanic ejecta ( < …   Universalium

  • tephrochronology — tephrochronological /tef roh kron l oj i keuhl/, adj. /tef roh kreuh nol euh jee/, n. Geol. a geochronologic technique based on the dating of layers of volcanic ash. Cf. tephra. [1940 45; < Sw tefrokronologi, equiv. to tefr(a) volcanic ejecta… …   Useful english dictionary

  • Saksunarvatn tephra — In the new science of tephrochronology, Saksunarvatn tephra are volcanic ejecta that form an ash layer that is useful in dating Northern European sediment layers that were laid down during the Boreal period, the warm climate phase that followed… …   Wikipedia

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  • Geochronology — A schematic depiction of the major events in the history of our planet. Geochronology is the science of determining the age of rocks, fossils, and sediments, within a certain degree of uncertainty inherent to the method used. A variety of dating… …   Wikipedia

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  • Dating methodologies in archaeology — Dating material drawn from the archaeological record can be made by a direct study of an artifact or may be deduced by association with materials found in the context the item is drawn from or inferred by its point of discovery in the sequence… …   Wikipedia

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