AN APPLICATION OF MARKOV CHAIN ANALYSIS TO STUDIES ON LITHOFACIES SEQUENCES IN THE ALLUVIAL FANS FROM THE "BE£CHATÓW" LIGNITE DEPOSIT (POLAND)
Wojciech MASTEJ
University of Mining and Metallurgy; Faculty of Geology, Geophysics and Environmental Protection, Department of General and Mathematical Geology, 30 Mickiewicza Ave., 30-059 Kraków, Poland, e-mail: wmastej@geolog.geol.agh.edu.pl
Mastej, W., 2002. An application of Markov chain
analysis to studies on lithofacies sequences in the alluvial fans from
the "Be³chatów" lignite deposit (Poland). Annales Societatis
Geologorum Poloniae, 72: 271-282.
Key words: Markov chain analysis, vertical lithofacies succession, "Be³chatów" lignite deposit, alluvial fans, lacustrine limestones.
Abstract: The Markov chain analysis was used to study on lithofacies
sequences in alluvial fans enclosed in the main seam of the "Be³chatów"
lignite deposit. Quantitative approach supported the qualitative results
of sedimentological analysis - the origin of muds, clays and coaly clays
as well as the presence of a barrier (peat bog) between the fans and the
lake with carbonate deposition. It was found that ephemeral lakes located
on the fan surface were favourable sites for development of peat bogs.
Similarly, the same lakes evolving into the peat bogs were favourable
environments for expansion of sand lobes of the fans. It was discovered
that cyclicity in sediment succession was disturbed by erosion. The new
model of lacustrine limestone deposition was proposed for the northwestern
part of lake which borders the fans from the northwest.
Manuscript received 31 January 2002 , accepted 15 November
2002
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Annales
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