maceral

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maceral

(ˈmæsərəl)
n
(Geological Science) geology any of the organic units that constitute coal: equivalent to any of the mineral constituents of a rock
[C20: from Latin mācerāre to macerate]
References in periodicals archive ?
Palynofacies analysis also indicated that Datta shales are rich in kerogen macerals, including inertinite, vitrinite, amorphinite ( Amorphous Organic Matter) with minor liptinite (i.
Liptinite macerals rarely exceed 15% and vanish with increasing depth (Kcdzior and Jelonek, 2013).
Microscopic (petrographic) study of coal has long been used to study the kinds and amounts of macerals and minerals.
Vitrinite can be separated by flotation process by taking advantage of differences in its hidrophobicity compared to liptinite and inertinite macerals, Sun (1954).
The Tertiary coals are humic and generally dominated by vitrinite, with significant amounts of liptinite and low amounts of inertinite macerals.
These source beds, of the Lightjack Formation of the Liveringa Group, are thought to contain Type 2 or oil prone macerals, as confirmed by geochemical analyses of samples from oil wells, and could also have sourced conventional hydrocarbon accumulations.
Lower Palaeozoic black shales contain vitrinite-like macerals from where "vitrinite" reflectance can be measured.
Petrographically these coals are rich in vitrinite and conspicuously deficient in liptinite macerals.
The sapropelinite group has a maximum generation potential compared to other organic macerals [7], with the volume content of 59.
Various physical and chemical properties of coal influence the value of HGI, including moisture contents, ash, volatile matter and fixed carbon, presence and proportion of various macerals and microlithotypes and composition and distribution of mineral matter (Jorjani et al.
12%) indicating can be used as a PCI blend with the higher phosphorous other Western Canadian PCI coals- HGI index at 46 makes this coal a very suitable blending coal to maximise pulverising and injecting capacity- Petrographic examination indicates the high volatile Basin coal has 90% reactives and about 10% inert macerals which should provide high efficiency in combustion.