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A maceral is a component, organic in origin, of coal or oil shale. The term 'maceral' in reference to coal is analogous to the use of the term 'mineral' in reference to igneous or metamorphic rocks. Examples of macerals are inertinite, vitrinite, and liptinite.
A maceral is a component, organic in origin, of coal or oil shale. The term 'maceral' in reference to coal is analogous to the use of the term 'mineral'...
Funginite is a maceral, a component, organic in origin, of coal or oil shale, exhibiting several different physical properties and characteristics under...
of coals and most sedimentary kerogens. Vitrinite is a type of maceral, where "macerals" are organic components of coal analogous to the "minerals" of...
presence of charred spores and other carbonized plant debris in the pollen maceral that indicate the occurrence of ancient wildfires ignited during periods...
maturation, but some macerals undergo large changes while other macerals undergo relatively small changes. In addition, macerals that are richer in aromatic...
The macerals are coalified plant parts that retain the morphology and some properties of the original plant. In many coals, individual macerals can be...
altered) when heated in the absence of oxygen. Inertinite is a common maceral in most types of coal. The main inertinite submacerals are fusinite, semifusinite...
Bituminite is an autochthonous maceral that is a part of the liptinite group in lignite, that occurs in petroleum source rocks originating from organic...
required for profitable exploitation of CBM. Also important is the maceral composition: maceral is a microscopic, homogeneous, petrographic entity of a corresponding...
Cutinite is a liptinite maceral formed from terrestrial plant cuticles, and often found in coal deposits. It is classified as a Type II kerogen. "Unicorns...
the following group of macerals: sporinite, cutinite, alginite (telalginite and lamalginite), resinite.[citation needed] Macerals (from the same Latin source...
Sporinite is a kind of exinite maceral found in coal formed from spores and pollen. It is a Type II kerogen. "Coal Macerals Tutorial". Archived from the...
Valley Greenhouse gas emissions#Carbon dioxide (CO2) List of rock types Maceral "Coal". education.nationalgeographic.org. Retrieved 2024-03-21. "Coal Explained"...
consists of more than 50% liptinite, 20 – 50% huminite and 0 – 20% inertinite maceral groups and is characterized by its high organic content . The origin of...
coal: Surface moisture: water held on the surface of coal particles or macerals Hygroscopic moisture: water held by capillary action within the microfractures...
earliest angiosperms, the formation of coal balls and the nature of coal macerals. The classification scheme and terminology she devised for coal are still...
vitrinite and inertinite. Analytically, cannel coal consists of micrinite, and maceral of the exinite group, and certain inorganic materials. Cannel coal has...
which matches the direction of thrusting. vesiculated vitrinite A group of macerals that are the most common component of coal. vitrophyre See pitchstone....
include remains of vascular land plants. Three major type of organic matter (macerals) in oil shale are telalginite, lamalginite, and bituminite. Some oil-shale...
resource to be exploited. Methane adsorbed into a solid coal matrix (coal macerals) will be released if the coal seam is depressurized. Methane may be extracted...
James B.; Vane, Christopher H. (March 2020). "Cellular preservation and maceral development in lignite and wood from the Brassington Formation (Miocene)...
rskey=tBNiRt&result=313 Scott A.C. (2002). "Coal petrology and the origin of coal macerals: a way ahead?". International Journal of Coal Geology. 50 (1–4): 119–134...
to 90% huminite. There is a dominance of macerals from detrital organic matter (humodetrinite) over macerals derived from more woody material (humotelinite)...
sample from the mounting medium, and subsequent measurement of coal and macerals. QEMSCAN consists of proprietary software package iDiscover which consists...
"Classification of uppermost Ordovician to Lower Devonian tubular and filamentous macerals from the Anglo-Welsh Basin". Botanical Journal of the Linnean Society....
resins are especially strong for the Benzene-Methanol fraction. The main maceral found is Lamalginite, which may derive from thin-walled planktonic and...
Sitosterol and Cholesterol. These coals are generally dominated by Vitrain macerals, with exceptions where there is a great percentage of Inertinite. This...
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