Blog Archives
Igneous Intrusions in Coal Seams and Shales Working Group
| June 22, 2026 | Filled under Com II |
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Objectives: The working group Igneous intrusions in coal seams and shales WG was established in 2022 during the 73rd ICCP meeting in India. One of its the main objectives is to investigate the petrographic changes in organic, coaly, and associated mineral matter caused by contact metamorphism. Complementary analysis – including where possible, Raman spectroscopy, micro-FTIR, […] more
Standardization of Fluorescence Measurement WG
| July 20, 2025 | Filled under Com II |
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Introduction The working group on Standardization of Spectral Fluorescence Measurements was established at the 2015 ICCP meeting in Potsdam as the “Correction Function” working group (ICCP News No. 63) with the objective to obtain comparative results among different laboratories in the measurement of the spectral fluorescence properties of sedimentary organic matter. Objectives The objective of the Standardization […] more
Geological Application of Graptolite Reflectance
| July 29, 2023 | Filled under Com II |
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Introduction The working group on Geological Application of Graptolite Reflectance was established in the 2022 ICCP New Delhi conference. Graptolite reflectance (GR) is the most significant thermal index for establishing thermal maturation in pre-Devonian rocks, and is needed to integrate this work into the efforts of the ICCP. Objectives At the ICCP Meeting in […] more
Radiolytical alteration of the organic matter in coal and rocks enriched in radioactive minerals
| April 20, 2023 | Filled under Com I |
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Introduction Association of uranium with the organic matter have been studied for more than ninety years, e.g.: in bitumens (Ellsworth, 1928a, b; Parnell, 1993; England et al., 2001), bituminous coal (Kříbek et al., 2017; Sýkorová et al., 2016; Eskenazy and Velichkov, 2012), lignite (Havelcová et al. 2014; Rallakis et al., 2019), shales (Lecomte et al., […] more
Microscopic constituents in solid residues from households combustion
| October 12, 2021 | Filled under Com III |
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Introduction Currently, numerous studies on the possible co-combustion of waste and biomass, based on the analysis of ash from household furnaces, are being carried out. These studies are based on physico-chemical analysis. Determining optically recognizable characteristic residues in ashes from unwanted additives burned with fuels will complete and simplify these analyzes. This will also allow […] more
Optimization of reflectance measurements on complex blends WG
| October 11, 2021 | Filled under Com III |
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During 66th Annual meeting of ICCP at Kolkata during 20-27 September, 2014 the Optimization of reflectance measurements on complex blends working group (WG) was constituted to study the vitrinite reflectance values of complex blends aimed for precise industrial usage. The aim is to reduce and optimise the number of counts of vitrinite reflectance from 1000 […] more
Pseudovitrinite Working Group
| February 27, 2020 | Filled under Com II |
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Background The Pseudovitrinite Working Group is concerned with investigating the precise nature and properties of the material referred to as pseudovitrinite, and with the need for its recognition in rank studies and coal utilization. The term pseudovitrinite was introduced by Benedict, Thompson, Shigo & Aikman (1968) to describe vitrinite-like material in Appalachian coals which displays […] more
Confocal Laser Scanning Microscopy (CLSM)
| October 22, 2017 | Filled under Com II |
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Objectives The objective of the Confocal Laser Scanning Microscopy working group (CLSM WG) was to investigate applications of confocal laser scanning microscopy in organic petrology. The working group was established within the ICCP Commission II in 2015 at the ICCP Meeting in Potsdam and finalized during the 2021 ICCP Meeting in Prague. The WG was […] more
Liquefaction Residues Classification Working Group
| January 11, 2016 | Filled under Com III |
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General information Liquefaction is the conversion of coal to liquids and can be carried out in terms of hydrogenation (direct liquefaction), pyrolysis and Fischer-Tropsch synthesis (indirect liquefaction). Thereby, pyrolysis takes a unique position since it is not only an independent method for upgrading solid fuels, but also the initial step of most conversion processes (e.g. […] more
DOMVR and Component Identification Results on microscopy samples in Commission II of the ICCP
| April 5, 2015 | Filled under Com II |
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Objectives To make widely available the results of the WGs over the years dealing with different aspects of identification, classification and analysis of dispersed organic matter Introduction The WG was born as consequence of the review performed by Werner Hiltmann on the results of the Isolation of Organic matter WG over the years and presented at […] more