sapropel

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English[edit]

Etymology[edit]

From German Sapropel, corresponding to sapro- + Ancient Greek πηλός (pēlós, mud, clay).

Pronunciation[edit]

Noun[edit]

sapropel (plural sapropels)

  1. (geology) An aquatic sludge-like sediment rich in organic matter formed in oxygen-free areas at the bottom of lakes, seas etc.
    • 2011, Chris Stringer, The Origin of Our Species, Penguin 2012, p. 47:
      Another instance in which Mediterranean sapropels have provided clues about events deep within the African continent is the ‘greening’ of the Sahara about 120,000 years ago.

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