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maceral

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
maceral [ˈmæsərəl]
n
(Earth Sciences / Geological Science) Geology any of the organic units that constitute coal: equivalent to any of the mineral constituents of a rock
[from Latin mācerāre to macerate]


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o]) value is microscopically determined on the wood-derived maceral vitrinite.
Oil shales are usually rich in the liptinite maceral that yields commercial amounts of oil upon heating (retorting).
The Himmetoglu oil shale seam consists of more than 50% liptinite, 20-50% huminite and 0-20% inertinite maceral groups and is characterized by its high organic content [38].
 
 
 
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