English

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Etymology

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From German Tholeiit, from Tholei (a village in western Germany).

Pronunciation

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Noun

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tholeiite (plural tholeiites)

  1. (geology) An igneous basaltic rock, formed from magma rich in magnesium and iron.
    • 2004, Richard Fortey, The Earth, Folio Society, published 2011, page 51n:
      Correctly speaking, Hawaiian basalt is not just basalt, but is a special variety enriched in silica known as tholeiite.

Derived terms

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