Veres János: A bükkábrányi 8 millió éves mocsárerdő (Múzeumi Mozaik 7. Miskolc, 2007)

there where the normal taphonomical process did not completed itself. We pointed out how different the Bükkábrány findings are from others of the same era most of which are fossil remains. We have to add that even though the fossil diagenesis could not happen in its drastic form, partially and in traces it can be observed even in the Bükkábrány tree trunks. What happened does not qualify as total preservation but instead a process of airtight conservation and another one in a special taphonomical environment in which the post-burial processes that took place in an 8-million year timespan were reduced to minimal. The result occure in special paleobotanical happenings, (or in the lack of) like how the roots became part of the lignite and how marcasite filled out the cracks of the wood. The original structure of the trees are still studied by various scientific methods as we speak. How much carbon the tree trunks contain, in other words at what level of carbonization they have gone thru is just as exciting a question as where all the cellulose vanished from the wood and just what exactly can we substitute it with. A very low concentration of carbon is expected as carbonization is the process that would turn these trunks to peat or lignite. The presence of marcasite in some of the trees are an example of the middle state of how part of the biosphere turnes into part of the litoshpere. There are three normal ways of taphonomy: one happens in the structure of the wood, one in wood cavities and another one in the surrounding material. In two cases, we have to take the original qualities into account like size, porous materia, chemical composition so forth, that expected to change drastically during decay. The surrounding deposit contains so many various factors like pH, water temperature, bacterical processes. The findings only lack cellulose and show minimal carbonization. There is a slight fossil diagenesis in the cavities that are mainly filled with silty deposits. To the contrary