Autocyclic development of Oxfordian sponge-microbial bioherms from Central and Southern Poland
Szymon OSTROWSKI, 2005, Volumina Jurassica, Vol. III
Key words: Sponge-microbial bioherms, Oxfordian, Poland.
A study of Upper Jurassic sponge-microbial bioherms in Poland allow to recognise successive changes in bioherm facies. No-time related character of these changes proved for different bioherms excludes external mechanism of facies development. The existance of ecological co-dependence between sponge and cynaobacteria may be treated as main reason of facies changes.