maceral


maceral
\\|masə|ral\ noun (-s)
Etymology: probably from Latin macer soft, weak + English -al
: a fragment of plant debris in coal

Useful english dictionary. 2012.

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  • Maceral — A maceral is a component 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.… …   Wikipedia

  • Maceral — So, wie Minerale die Grundbestandteile von kristallinen Gesteinen darstellen, so sind Mazerale, oder Macerale, die organischen gesteinsbildenden Komponenten der Kohlen und Kerogene. Sie bestehen größtenteils aus Pflanzenresten, die unter dem… …   Deutsch Wikipedia

  • maceral — ▪ organic compound        Petrologic components in coal and their groupings Petrologic components in coal and their groupingsany of the numerous microscopically recognizable, individual organic constituents of coal with characteristic physical… …   Universalium

  • maceral — n an organic substance in coal that is distinguished and classified on the basis of its optical microscopic properties. DISCUSSION Macerals originate from plant tissues, secretions, and exudates that have been altered by geological processes and… …   Coke&Coal Terminology

  • maceral — mac·er·al …   English syllables

  • coal — coalless, adj. /kohl/, n. 1. a black or dark brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. Cf. anthracite, bituminous coal, lignite. 2. a piece of glowing, charred, or burned wood or other… …   Universalium

  • coal utilization — Introduction        combustion of coal or its conversion into useful solid, gaseous, and liquid products. By far the most important use of coal is in combustion, mainly to provide heat to the boilers of electric power plants. Metallurgical coke… …   Universalium

  • vitrinite — n the predominant maceral in most coals of intermediate reflectance occurring as substantial volumes of more or less uniformly reflecting material or as a matrix enclosing particles of other macerals and mineral matter or as particles or bands… …   Coke&Coal Terminology

  • Bituminous coal — is a relatively soft coal containing a tarlike substance called bitumen. It is of higher quality than lignite coal but poorer quality than anthracite coal. Bituminous coal is an organic sedimentary rock formed by diagenetic and submetamorphic… …   Wikipedia

  • ГОСТ 17070-87: Угли. Термины и определения — Терминология ГОСТ 17070 87: Угли. Термины и определения оригинал документа: 44. Аналитическая проба угля D. Analysenprobe Е. Analysis sample F. Echantillon pour analyse Проба угля, полученная в результате обработки объединенной или лабораторной… …   Словарь-справочник терминов нормативно-технической документации