PECULIARITIES OF PETROGRAPHIC COMPOSITION OF COKING COALS IN SOUTHWEST PART OF UPPER SILESIAN COAL BASIN (POLAND) AS A RESULT OF THERMAL METAMORPHISM INFLUENCE

被引：0

作者：

Komorek, Joanna ^{[1
]}

Lewandowska, Malgorzata ^{[1
]}

Probierz, Krystian ^{[1
]}

机构：

[1] Silesian Tech Univ, Fac Min & Geol, Inst Geol Stosowanej, PL-44100 Gliwice, Poland

来源：

ARCHIVES OF MINING SCIENCES | 2010年 / 55卷 / 04期

关键词：

Upper Silesian Coal Basin; red beds; thermal metamorphism; fluorescing bituminous substance; vitrinite reflectance;

D O I：

暂无

中图分类号：

TD [矿业工程];

学科分类号：

0819 ;

摘要：

Subject of the research were coal samples taken from different tectonic blocks of a coal bed, from the seams 404/2, 409/3, 409/4, and 415/3 (Namurian C) in coal mine Zofiowka. Samples from investigated seams represent middle ranked coal type B (metabituminous), characterised by a mean reflectance of vitrinite in a range of R(0) = 1,12 to 1,33%. It was found that for samples collected from coal seams 415/3, 409/4, and 409/3, value of vitrinite reflectance decreases slightly with increasing distance between the sampling location and red beds that exist in the Carboniferous roof, what points on certain inversion of coal rank. All analysed coal samples from Ruda beds are characterized by certain peculiarities in petrographic composition, which are typical for thermally metamorphosed coals, in the temperature range of 400-500 degrees C. Presence of such components as anisotropic inertinite, fluorescing bituminous substance, and more rarely pseudomorphs after macrospores characterized by intense bireflectance, were observed. Sporadically pyrolytic coal was also observed, characterised by intense anisotropy with visible Brewster crosses by cross-Nicol position. Components, which exhibit structure similar do coke, were also observed in tested coal samples. A manifestation of thermal processes could be also presence of significant amounts of carbonates in tested samples, which are present in a form of filling of cellular spaces in semifusinite, fusinite, and funginite.

引用

页码：783 / 798

页数：16

共 44 条

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Department of Geochemistry, Mineralogy and Petrography, Silesian University, ul. Bȩdzińska 60, 41-200 Sosnowiec, Poland
不详
Fuel Process Technol, 1-2 (145-155):
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