Geologia
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ISSN 0138-0974
e-ISSN: 2353-0782
Issue Date
2007
Volume
T. 33
Number
Nr 3
Description
Journal Volume
Geologia
T. 33 (2007)
Projects
Pages
Articles
Zasoby węgla kamiennego w GZW w latach 1991-2005
(Wydawnictwa AGH, 2007) Gabzdyl, Wiesław
The restructuring of coal mining in the Upper Silesian Coal Basin caused considerable changes in the structure and size of bituminous coal resources. The decrease of geological, recoverable, developed and non-developed resources and the increase of non-recoverable resources has been showed. In the years 1991-2005 geological resources decreased of ca 21 mld Mg, recoverable resources of ca 23 mld Mg, developed resources of over 10 mld Mg and non-developed resources of over 12 mld Mg. In the same time there has been an increase of the non-recoverable resources. The size of resources in undeveloped deposits became real and amount increased to 18.6 mld Mg. Main influence on the decrease had the classifications and strikes off the registry.
Litotypy węgla z pokładu 308 (pensylwan) z KWK »Ziemowit« (GZW) jako wskaźniki środowisk sedymentacyjnych
(Wydawnictwa AGH, 2007) Misiak, Jacek
The composition of coal and deposition environment characterization were made based on lithotype and maceral analyses. The proposed facies are based on an assumption that oscillations of water table in a peat-bog affect the petrographic composition of coal, while stronger influxes of water table into the peat-bog increase the content of mineral matter in coal. The author has identified three major types of peat-bog environments in which plant material was deposited in the Carboniferous period. There are: permanently inundated-planar mire (PM) with two sub-environments - PM »margin« and PM »central«, temporarily inundated-transitional mire (TM) with two sub-environments - TM »wet« and TM »dry«, and elevated-domed mire (DM) with two sub-environments - DM »progressive« and DM »regressive«.
Stratygrafia kredy jeziornej ze złoża węgla brunatnego »Szczerców«
(Wydawnictwa AGH, 2007) Wagner, Marian; Matl, Kazimierz
Two continuous lacustrine chalk horizons of different age with the total thickness around 90 m were distinguished in the »Szczerców« lignite deposit. The older level (II) occurs in the western part of deposit, particularly in the lower part of a coal complex. The younger level (I and la) is observed in the upper part of the coal complex. The levels are separated by lignite series that is several dozen meters thick. The analysis of malacofauna and palynology confirmed stratigraphic differentiation of the distinguished lacustrine chalk horizons. The older level was described as Lower Miocene that corresponds with Ottnangian and Carpathian in the marine Miocene scheme of Parathetys. Therefore, it is an equivalent to the III-Rawicz Lignite Main Group. The younger level of lacustrine chalk horizons (I) was classified to Middle Miocene and the local upper part of it was assigned to breaching of Middle and Upper Miocene (biostratigraphic zone MN 5-6 that corresponds with Badenian and MN 7-8 that is assigned to Sarmatian). Presumably, it is comparable to the II-Łużyce Lignite Main Group from Polish Lowland.
Karbon Appalachów i jego porównanie z karbonem Górnośląskiego oraz Lubelskiego Zagłębia Węglowego
(Wydawnictwa AGH, 2007) Zdanowski, Albin
The Carboniferous deposits occur generally on the entire territory of the United States of America. The region to be correlated is the West Virginia where numerous Carboniferous outcrops occur and they are detailed floristically documented. The studied region is located west of the Breward tectonic zone, the inner boundary of the Appalachian between the Late Palaeozoic Atlantic Plate and the Early Palaeozoic Central Plate. The Carboniferous macroflora documents the Late Mississippian (Serpukhovian/Namurian A) and the Late Pennsylvanian (Late Bashkirian-Early Moscovian). The documented stratigraphic gap the post-Chesterian surface in the studied region corresponds to the latest Mississippian and Early Pennsylvanian. In Polish coal basins it probably corresponds to the stratigraphic gap ascribed to the $H_1$ and $H_2$ goniatite zones. In both studied regions marine and paralic deposits with coal beds occur below the gap and limnic-fluvial deposits with coal beds and thick paralic deposits dominate just above it.