• 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'...
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  • of coals and most sedimentary kerogens. Vitrinite is a type of maceral, where "macerals" are organic components of coal analogous to the "minerals" of...
    4 KB (520 words) - 20:14, 9 January 2024
  • Thumbnail for Funginite
    Funginite is a maceral, a component, organic in origin, of coal or oil shale, exhibiting several different physical properties and characteristics under...
    14 KB (1,636 words) - 06:40, 16 May 2024
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    presence of charred spores and other carbonized plant debris in the pollen maceral that indicate the occurrence of ancient wildfires ignited during periods...
    39 KB (4,028 words) - 06:04, 8 September 2024
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    maturation, but some macerals undergo large changes while other macerals undergo relatively small changes. In addition, macerals that are richer in aromatic...
    36 KB (4,274 words) - 20:44, 23 September 2024
  • 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...
    4 KB (376 words) - 19:55, 9 January 2024
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    Coal (section Macerals)
    The macerals are coalified plant parts that retain the morphology and some properties of the original plant. In many coals, individual macerals can be...
    123 KB (12,159 words) - 15:09, 18 September 2024
  • the following group of macerals: sporinite, cutinite, alginite (telalginite and lamalginite), resinite.[citation needed] Macerals (from the same Latin source...
    3 KB (339 words) - 04:09, 14 April 2023
  • 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...
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    required for profitable exploitation of CBM. Also important is the maceral composition: maceral is a microscopic, homogeneous, petrographic entity of a corresponding...
    33 KB (3,706 words) - 16:50, 21 March 2024
  • 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...
    547 bytes (39 words) - 18:03, 20 August 2022
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    different macerals from thermal coal, i.e. different forms of the compressed and fossilized vegetative matter that comprise the coal. The different macerals arise...
    35 KB (4,448 words) - 23:08, 9 September 2024
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    Valley Greenhouse gas emissions#Carbon dioxide (CO2) List of rock types Maceral Coking factory "Coal". education.nationalgeographic.org. Retrieved 2024-03-21...
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  • Bituminite is an autochthonous maceral that is a part of the liptinite group in lignite, that occurs in petroleum source rocks originating from organic...
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    "Coal blend combustion: link between unburnt carbon in fly ashes and maceral composition". Fuel Processing Technology. 80 (3): 209–223. doi:10...
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  • Thumbnail for Marie Stopes
    earliest angiosperms, the formation of coal balls and the nature of coal macerals. The classification scheme and terminology she devised for coal are still...
    83 KB (9,814 words) - 03:40, 30 August 2024
  • coal: Surface moisture: water held on the surface of coal particles or macerals Hygroscopic moisture: water held by capillary action within the microfractures...
    11 KB (1,449 words) - 21:47, 29 March 2024
  • Thumbnail for Cannel coal
    vitrinite and inertinite. Analytically, cannel coal consists of micrinite, and maceral of the exinite group, and certain inorganic materials. Cannel coal has...
    10 KB (1,122 words) - 22:38, 17 September 2024
  • include remains of vascular land plants. Three major type of organic matter (macerals) in oil shale are telalginite, lamalginite, and bituminite. Some oil-shale...
    29 KB (2,968 words) - 16:24, 2 November 2023
  • which matches the direction of thrusting. vesiculated vitrinite A group of macerals that are the most common component of coal. vitrophyre See pitchstone....
    81 KB (10,303 words) - 06:28, 27 July 2024
  • 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...
    3 KB (442 words) - 20:24, 21 September 2024
  • 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...
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  • sample from the mounting medium, and subsequent measurement of coal and macerals. QEMSCAN consists of proprietary software package iDiscover which consists...
    11 KB (1,276 words) - 01:35, 19 May 2024
  • James B.; Vane, Christopher H. (March 2020). "Cellular preservation and maceral development in lignite and wood from the Brassington Formation (Miocene)...
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  • 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...
    17 KB (1,984 words) - 23:43, 8 May 2023
  • Scanning Electron Microscopy (CCSEM) Techniques for Determining Mineral-Maceral Association". Retrieved June 12, 2012. "Project ExCEL: Web-based Scanning...
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    "Classification of uppermost Ordovician to Lower Devonian tubular and filamentous macerals from the Anglo-Welsh Basin". Botanical Journal of the Linnean Society....
    13 KB (1,329 words) - 19:46, 2 July 2024
  • Thumbnail for Sorthat Formation
    to 90% huminite. There is a dominance of macerals from detrital organic matter (humodetrinite) over macerals derived from more woody material (humotelinite)...
    165 KB (6,292 words) - 19:06, 8 July 2024
  • "Classification of uppermost Ordovician to lower Devonian tubular and filamentous macerals from the Anglo-Welsh Basin". Botanical Journal of the Linnean Society....
    8 KB (842 words) - 02:30, 26 October 2023
  • Thumbnail for Posidonia Shale
    resins are especially strong for the Benzene-Methanol fraction. The main maceral found is Lamalginite, which may derive from thin-walled planktonic and...
    68 KB (7,619 words) - 14:48, 11 September 2024