Phosphorus minerals in tonstein; coal seam 405 at Sośnica-Makoszowy coal mine, Upper Silesia, southern Poland

Kokowska-Pawłowska, Magdalena; Nowak, Jacek

doi:10.2478/agp-2013-0012

Cited by 9 publications

(2 citation statements)

References 15 publications

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“…In comparison with the average content of oxides of major elements in the ash of coal from deposits around the world (SiO 2 = 10-45%,Al 2 O 3 = 1-11%, Fe 2 O 3 = 1.5-5.5%, , CaO = 2-45%, MgO = 1-20%, Na 2 O = 0.2-5.0%, K 2 O = 0.1-2.5%, SO 3 = 5-20% by Bouška 1980; TiO 2 = 0.88±0.03% and P 2 O 5 = 0.344±0.022% by Ketris and Yudovich 2009), the tested coal has above-average content of Al 2 O 3 (22.15%), Fe 2 O 3 (17.03%), and P 2 O 5 (0.70%; Table 2). The high content of Al 2 O 3 and P 2 O 5 in the Limnic Series of the USCB, especially in the coal from the Orzesze Beds, Załęże Beds and Ruda Beds is probably caused by tonstein partings and intrusive vulcanites in the coal seams and/or their vicinity (Kokowska-Pawłowska & Nowak, 2013;Łapot, 1992). In the USCB, as there are few signs of volcanic activity, phosphorus in coal is probably of syngenetic origin (Marcisz, 2014;Różkowska & Parzentny, 1990).…”

Section: Petrographic and Geochemical Indicators Of Coal Qualitymentioning

confidence: 99%

Archives of Mining Sciences

Parzentny,

Róg

2020

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This article aims to assess the values of the most often measured petrographic, geochemical and technological indicators of coal quality and to identify probable dependences between them in the USCB coal. The following can also be observed: high content of Cd and Co in carbonate minerals separated from coal, in clay minerals -Cr and Zn, and in sulfide minerals -Cu, Ni and Pb. Nevertheless, it is organic matter which has the greatest influence on the average content of trace elements in coal. Correlations between the values of some of the indicators of coal quality were also observed. It has been observed that

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Section: Petrographic and Geochemical Indicators Of Coal Qualitymentioning

confidence: 99%

Archives of Mining Sciences

Parzentny,

Róg

2020

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“…Previous studies have reported that alkali tonsteins developed during the early part of the Late Permian in southwestern China [51,69]. However, the geochemistry of several coal tonsteins of the Late Permian age worldwide indicates that they originated from volcanic ash fallout of silicic to intermediate composition [70][71][72][73][74][75][76]. The systematic investigation of volcanic tuff/ash is focused on the marine environment, but their origin is still uncertain [42,77,78].…”

Section: Input Of Felsic Volcanogenic Mattermentioning

confidence: 99%

Petrological Composition of the Last Coal Seam in the Longmendong Section before the End-Permian Mass Extinction

et al. 2021

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Late Permian coal deposits are widely distributed throughout southwestern China. This paper describes the petrological composition of the last coal seam in the Longmendong section of the Emeishan area during the latest Changhsingian (Permian) and records important information regarding the evolution of the mass extinction event that occurred at the end of the Permian. The results show that the dominant coal maceral group is vitrinite, followed by liptinite and inertinite macerals, and the coal minerals include quartz, chamosite and pyrite. The pyrofusinite and carbon microparticles occurrence modes could have been formed during wildfires in the adjacent areas. The β-tridymite occurrence modes and the high proportions and occurrence modes of magmatic quartz indicate that synchronous felsic volcanic activity occurred during the peat mire accumulation period. The chamosite and quartz occurrence modes suggest that they primarily precipitated from Fe-Mg-rich siliceous solutions that was derived from the weathering of nearby Emeishan basalt. The pyritic coal balls occurrence modes in the C1 coal seam are likely the result of coal-forming plants and Fe-Mg-rich siliceous solutions in neutral to weak alkaline conditions during late syngenetic stages or early epigenetic stages within paleomires.

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Rare Earth and Critical Element Chemistry of the Volcanic Ash-fall Parting in the Fire Clay Coal, Eastern Kentucky, USA

Liu

Dai

Berti

et al. 2023

Clays and clay miner.

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In the search for rare earth and other critical elements in coal measures, the coals are emphasized with lesser consideration for the accompanying rocks. In this investigation, the focus is on a lanthanide-rich, 315–317 Ma (after Machlus et al., Chemical Geology, 539, art. no. 119485, 2020) volcanic ash-fall trachyandesite to trachyte tonstein which occurs in association with the Middle Pennsylvanian Duckmantian-age Fire Clay coal in eastern Kentucky. The tonstein was deposited largely during peat accumulation, although it is known to occur at the base of the coal or within the underclay. The mineralogy is dominated by kaolinite with illite and quartz as minor to major minerals. A number of accessory minerals, as detected by X-ray diffraction + Siroquant XRD software and scanning and transmission electron microscopy (S/TEM), include REE-bearing phosphates (apatite, crandallite, florencite, monazite), and Y-bearing zircon. The highest rare earth element + Y concentrations occur in the weathered tonsteins, probably due to the concentration of these minerals after weathering of kaolinite from the rock.

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Phosphorus minerals in tonstein; coal seam 405 at Sośnica-Makoszowy coal mine, Upper Silesia, southern Poland

Cited by 9 publications

References 15 publications

Archives of Mining Sciences

Archives of Mining Sciences

Petrological Composition of the Last Coal Seam in the Longmendong Section before the End-Permian Mass Extinction

Rare Earth and Critical Element Chemistry of the Volcanic Ash-fall Parting in the Fire Clay Coal, Eastern Kentucky, USA

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