Microlithotypes - an overview | ScienceDirect Topics
网页Microlithotypes (Table 2.5) are the natural assemblages of macerals at microscopic level. They are defined as having a minimum bandwidth (perpendicular to the stratification) of 50 μm and as containing at least 5% of a maceral group (ICCP, 1963, 1971, and …
Microlithotype - SpringerLink
网页2016年1月1日 · The individual microconstituents in coal or macerals rarely occur by themselves but are mostly in association with each other. Such association of macerals is termed as microlithotype. Broadly, they are divided into three groups, namely, monomaceral, bimaceral, and trimaceral, based on whether a microlithotype contains macerals of one, two, or ...
Shore hardness measurements of sub-bituminous coal …
网页2020年1月2日 · Three common microlithotypes were identified for the sub-bituminous specimens tested: vitrite, clarite and carbominerite. Results indicate the hardest microlithotype is clarite, followed by vitrite, and then carbominerite.
A Comparison of Maceral and Microlithotype Indices for …
网页The microlithotype is dominated by vitrite, vitrinertite, and duroclarite. Liptite is absent and inertite is rarely seen. Duroclarite is the most dominant Trimacerite in these coals.
Notes on the relationship between microlithotype composition …
网页2014年9月1日 · The bimaceral microlithotype durite and the trimaceral microlithotypes claroduritite and vitrinertoliptite are the microlithotypes most resistant to breakage. As such, they would be expected to contribute, both individually and collectively, to low HGI numbers.
GB/T 15589-2013 显微煤岩类型分类 Classification of microlithotype …
网页中文名称： 显微煤岩类型分类. 英文名称： Classification of microlithotype. 适用范围： 本标准规定了显微煤岩类型的分类原则,显微煤岩类型、显微矿化类型和显微矿质类型的分类。 本标准适用于烟煤和低变质程度的无烟煤。 价 格. ¥19. 介质类型. 电子. 纸质. 翻译服务. 语 种. 加入购物车. 预览. 收藏跟踪 分享. 基本信息. 发布日期：2013-12-17. 实施日期：2014-05-01. 中国标准分类： D26 (煤岩) 国际标准分类： 73.040 (煤) 归口单位： 全国煤炭标准化技 …
A model for the statistical distribution of microlithotypes in coal
网页Microlithotype composition of a coal sample is often summarized by examining a large number (~500) of subsamples of a grain mount and estimating proportion.
国家标准 - 全国标准信息公共服务平台
网页该标准规定了显微煤岩的分类方法和标准，适用于煤炭工业的各项技术活动。该标准于2013年12月17日发布，2014年5月1日实施，全部代替了1995年版本的同名标准。
COAL MICROLITHOTYPES AND THEIR USAGE IN INTERPRETING …
网页2015年7月11日 · This document discusses coal microlithotypes and how their analysis can be used to interpret depositional environments. It defines microlithotypes as natural rock associations found within coal that are differentiated based on maceral percentages.
网页Microlithotype composition of a coaI sample is orten summarized by examining ä large number {~500) of subsamples of a grain mount and estimating proportions of vitrite, inter- mediates, and inertite, where, for samples we have investigated, the proportion of interme-
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