maceral


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maceral

[¦mas·ə¦ral]
(geology)
The microscopic organic constituents found in coal.
References in periodicals archive ?
Maceral and geochemical characteristics of coal seam 1 and oil shale 1 in fault-controlled Huangxian Basin, China.
Macerals characteristics of black argillite from Paleozoic marine-continental transitional facies and evaluation on their gas-generating potentiality // Acta Sedimentologica Sinica.
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].
Temperature-programmed combustion studies of coal and maceral group concentrates // Ibid.
Kerogen contains different maceral groups that behave differently in pyrolysis reactions [3].
huminite (20-50 vol%) and inertinite (0-20 vol%) maceral groups [3].
The sapropelinite group has a maximum generation potential compared to other organic macerals [7], with the volume content of 59.