Coal petrological and xylotomical characterization of Miocene lignites and in-situ fossil tree stumps and trunks from Lusatia region, Germany: Palaeoenvironment and taphonomy assessment

J, Kuś; Dolezych, Martina; Schneider, Wilfrid; Hofmann, Thilo; Rajczi, E. Visiné

doi:10.1016/j.coal.2019.103283

Cited by 17 publications

(15 citation statements)

References 58 publications

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“…For instance, if the filling matter is the water, the possible configurations are those typical of lakes, reservoirs, and wetlands, where the flat surfaces will prevail, rather than the protruding volumes. One of the most famous examples is the F60, a vast mining area in Lusatia (Brandenburg) [29], formed by extensive open-air deposits of lignite (brown coal). These deposits give the region the nomenclature of "Energy district" [30], in which power stations, briquettes factories, coke ovens, and other establishments were located.…”

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confidence: 99%

Quarries: From Abandoned to Renewed Places

Talento

Amado

Kullberg

2020

Land

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Numerous industrial pits are discarded after their exploitation in every part of the world. Humanity both transforms the original morphology of the landscape, due to industrial activity in the territory, and, at the same time, rejects this "new" situation. This is to the detriment of the landscape, which is witness to this transfiguration, degradation, and abandonment. What is the future of these impersonal and empty areas? In this article, we present a general survey concerning the notion of quarry reuse to highlight the importance of this current and common problem. Our work approached the topic through a combination of the main concepts and a description of selected cases of study of quarry reconversions, sensitive to the environmental issues, climate changes, and sustainability. According to this premise, the research also provides an innovative matrix of schemes to classify the existing fundamental methods of recovery. For this effect, the investigation was proposed to be an instrument to improve the knowledge in the scientific and theoretical sectors, flanking the practical understanding, which has already started to move in this direction of reconversion, as the paper shows.

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confidence: 99%

Quarries: From Abandoned to Renewed Places

Talento

Amado

Kullberg

2020

Land

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“…38 The structural changes in the macromolecular fuel network affect the combustion process, leading to a reduced fuel consumption rate, a reduction of the time the coal burns with a visible flame (homogeneous combustion of volatile components), and an extension of the time it does without a visible flame (heterogeneous combustion of char). 56 The Lusatian coal is a thermally immature, humic lignite, has formed in a low-lying reed-mire environment with few content of xylite (fossil wood remnants, mainly gymnosperms), 57 and is of high grade, i.e., low content of ash (<10% 58 ). The sulfur content of 0.7% can be considered low.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

Brown Coal and Logwood Combustion in a Modern Heating Appliance: The Impact of Combustion Quality and Fuel on Organic Aerosol Composition

Martens

Czech

Orasche

et al. 2023

Environ. Sci. Technol.

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Residential heating with solid fuels is one of the major drivers for poor air quality in Central and Eastern Europe, and coal is still one of the major fuels in countries, such as Poland, the Czech Republic, and Hungary. In this work, emissions from a single-room heater fueled with brown coal briquettes (BCBs) and spruce logs (SLs) were analyzed for signatures of inorganic as well as semivolatile aromatic and low-volatile organic constituents. High variations in organic carbon (OC) emissions of BCB emissions, ranging from 5 to 22 mg MJ −1 , were associated to variations in carbon monoxide (CO) emissions, ranging from 900 to 1900 mg MJ −1 . Residential BCB combustion turned out to be an equally important source of levoglucosan, an established biomass burning marker, as spruce logwood combustion, but showed distinct higher ratios to manosan and galactosan. Signatures of polycyclic aromatic hydrocarbons emitted by BCB combustion exhibited defunctionalization and desubstitution with increasing combustion quality. Lastly, the concept of island and archipelago structural motifs adapted from petroleomics is used to describe the fraction low-volatile organic compounds in particulate emissions, where a transition from archipelago to island motifs in relation with decreasing CO emissions was observed in BCB emissions, while emissions from SL combustion exhibited the island motif.

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“…The fossil surface and inner boring structures are partly coated or infilled with silica and calcite (or coarse permineralization). In contrast, freshly exposed surfaces reveal undigested wood components (attrinite over textinite, ulminite, suberinite ingredients, terms follow Kus et al, 2020), silica fillings, and carbonates (after acid treatment, Appendix A). A part of the fossil was embedded in epoxy resin before the preparation of thin sections following the usual technique used for petrography, on the three planes used for wood studies (transverse, radial longitudinal, and tangential longitudinal), mounted onto petrographic slides, and polished until the thickness allowed viewing anatomical details.…”

Section: Methodsmentioning

confidence: 99%