Maceral - Wikipedia
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. [1]
Maceral | Definition & Facts | Britannica
maceral, any of the numerous microscopically recognizable, individual organic constituents of coal with characteristic physical and chemical properties. Macerals are analogous to minerals in inorganic rocks, but they lack a definite crystalline structure.
Coal MaceralsTutorial | Petrographic Atlas | SIU
There are three basic groups of macerals, the vitrinite group derived from coalified woody tissue, the liptinite group derived from the resinous and waxy parts of plants and the inertinite group derived from charred and biochemically altered plant cell wall material.
Macerals, Coal, Kentucky Geological Survey, University of Kentucky
2023年1月5日 · On the microscopic level, coal is made up of organic particles called macerals. Macerals are the altered remains and byproducts of the original plant material from which the coal-forming peat originated. Macerals are to coal as sediment grains and cements are to sedimentary rocks.
Coal Macerals - an overview | ScienceDirect Topics
Macerals are microscopical organic entities derived from terrestrial, lacustrine and marine plant remains and modified by deposition processes, early diagenesis and subsequent thermal evolution. There are three maceral groups: huminite/vitrinite, liptinite and inertinite ( Fig. 3 ).
Maceral Component - an overview | ScienceDirect Topics
Macerals are microscopical organic entities derived from terrestrial, lacustrine and marine plant remains and modified by deposition processes, early diagenesis and subsequent thermal evolution. There are three maceral groups: huminite/vitrinite, liptinite and inertinite (Fig. 3).
Coal Macerals - SpringerLink
2016年1月1日 · Macerals are classified into three major organic groups, viz., vitrinite/huminite, liptinite/exinite, and inertinite, and one inorganic group, i.e., shale + mineral matter. Association of macerals constitutes microlithotype.
What are macerals? - IFRF
2002年4月22日 · Macerals. The organic units or macerals that make up a coal mass can be identified in all ranks of coal. In essence, macerals are divided into three main groups: [GLOSS]Vitrinite [/GLOSS] (also known as [GLOSS]Huminite [/GLOSS]), which consists of …
Maceral - an overview | ScienceDirect Topics
Macerals refer to the organic remains found in peat biomass, primarily originating from plants, that undergo various chemical, physical, and biological transformations before and after being incorporated into the peat.
The concept behind the word "macerals" is that the complex of biological units represented by a forest tree which crashed into a watery swamp and there partly decomposed and was macerated in the process of coal formation, did not in that process become uniform throughout but still retains de limited regions optically differing under the.