IDENTIFICATION OF THE FLUVIAL-CHANNEL TRACTS BASED ON THICKNESS ANALYSIS: ZABRZE BEDS (NAMURIAN B) IN THE MAIN ANTICLINE AND BYTOM-DˇBROWA TROUGH OF UPPER SILESIA COAL BASIN, POLAND

Artur KĘDZIOR

Polish Academy of Sciences, Institute of Geological Sciences, Kraków Research Centre, Senacka 1, 31-002 Kraków, Poland, e-mail: ndkedzio@cyf-kr.edu.pl

Kędzior, A., 2001. Identification of the fluvial-channel tracts based on thickness analysis: Zabrze Beds (Namurian B) in the Main Anticline and Bytom-D±browa Trough of Upper Silesia Coal Basin, Poland. Annales Societatis Geologorum Poloniae, 71: 21-34.

Key words: fluvial sedimentology, sandbody geometry, fluvial-channel tracts, Upper Carboniferous, Upper Silesia Coal Basin.
Abstract: The studied area of ca. 500 km2 lies within the Main Anticline and the Bytom-D±browa Trough of the Upper Silesia Coal Basin. During the deposition of the fluvial Zabrze Beds, this area was subject to differential subsidence which resulted in gradual eastward thinning of this unit from ca. 250 m near Zabrze to ca. 4 m near Sosnowiec. Maps of net sandstone and coal contents in two stratigraphical intervals selected within the Zabrze Beds point to the presence of four channel tracts. The main tract is parallel to the NE-SW trending axis of maximum subsidence, and the other three are perpendicular to it. During deposition of the Zabrze Beds the main, NE-SW trending channel tract has shifted westward.
Annales
Societatis
Geologorum
Poloniae

 

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