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tephrochronological

 - 1 dictionary result

teph⋅ro⋅chro⋅nol⋅o⋅gy

  [tef-roh-kruh-nol-uh-jee]
Use tephrochronological in a Sentence
–noun Geology.
a geochronologic technique based on the dating of layers of volcanic ash.
Compare tephra.

Origin:
1940–45; < Sw tefrokronologi, equiv. to tefr(a) volcanic ejecta (< Gk téphra ash) + -o- -o- + kronologi chronology

Related forms:
teph⋅ro⋅chron⋅o⋅log⋅i⋅cal  [tef-roh-kron-l-oj-i-kuhl] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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