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tephrochronology

[ tef-roh-kruh-nol-uh-jee ]

noun

, Geology.
  1. a geochronologic technique based on the dating of layers of volcanic ash.


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Other Words From

  • teph·ro·chron·o·log·i·cal [tef-roh-kron-l-, oj, -i-k, uh, l], adjective
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Word History and Origins

Origin of tephrochronology1

1940–45; < Swedish tefrokronologi, equivalent to tefr ( a ) volcanic ejecta (< Greek téphra ash) + -o- -o- + kronologi chronology

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