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/ˈsapɹə(ʊ)pɛl/ · noun
(geology) An aquatic sludge-like sediment rich in organic matter formed in oxygen-free areas at the bottom of lakes, seas etc..
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.
Use sapropel when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Sapropel means (geology) An aquatic sludge-like sediment rich in organic matter formed in oxygen-free areas at the bottom of lakes, seas etc..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
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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