What does tephrochronology mean?
Definitions for tephrochronology
tephrochronol·o·gy
This dictionary definitions page includes all the possible meanings, example usage and translations of the word tephrochronology.
Wikidata
Tephrochronology
Tephrochronology is a geochronological technique that uses discrete layers of tephra—volcanic ash from a single eruption—to create a chronological framework in which paleoenvironmental or archaeological records can be placed. Such an established event provides a "tephra horizon". The premise of the technique is that each volcanic event produces ash with a unique chemical "fingerprint" that allows the deposit to be identified across the area affected by fallout. Thus, once the volcanic event has been independently dated, the tephra horizon will act as time marker. The main advantages of the technique are that the volcanic ash layers can be relatively easily identified in many sediments and that the tephra layers are deposited relatively instantaneously over a wide spatial area. This means they provide accurate temporal marker layers which can be used to verify or corroborate other dating techniques, linking sequences widely separated by location into a unified chronology that correlates climatic sequences and events. Tephrochronology requires accurate geochemical fingerprinting. An important recent advance is the use of LA-ICP-MS to measure trace-element abundances in individual tephra shards. One problem in tephrochronology is that tephra chemistry can become altered over time, at least for basaltic tephras.
Numerology
Chaldean Numerology
The numerical value of tephrochronology in Chaldean Numerology is: 2
Pythagorean Numerology
The numerical value of tephrochronology in Pythagorean Numerology is: 7
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"tephrochronology." Definitions.net. STANDS4 LLC, 2024. Web. 24 Apr. 2024. <https://www.definitions.net/definition/tephrochronology>.
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