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isochron

/ ˈ²¹Éª²õəʊˌ°ì°ùÉ’²Ô /

noun

  1. a line on an isotope ratio diagram denoting a suite of rock or mineral samples all formed at the same time. The slope of the line is related to the age of the rock or mineral suite
  2. a line or curve on a geological map or cross section (esp of oceanic crust) connecting points of identical age
“Collins English Dictionary — Complete & Unabridged†2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Example Sentences

Examples have not been reviewed.

Hartmann, W. K. Martian cratering 8: isochron refinement and the chronology of Mars.

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