| CALÁBKOVÁ, Gabriela, Jiří CHLACHULA, Martin IVANOV, Michaela HLOŽKOVÁ, Jolanta CZERNIAWSKA, Michaela VAŠINOVÁ GALIOVÁ, Lubomír PROKEŠ a Petr GADAS. Microbial degradation of Pleistocene permafrost-sealed fossil mammal remains. Quaternary Research. Cambridge University Press, 2023, roč. 111, January, s. 84-106. ISSN 0033-5894. Dostupné z: https://dx.doi.org/10.1017/qua.2022.28. |
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@article{2212721,
author = {Calábková, Gabriela and Chlachula, Jiří and Ivanov, Martin and Hložková, Michaela and Czerniawska, Jolanta and Vašinová Galiová, Michaela and Prokeš, Lubomír and Gadas, Petr},
article_number = {January},
doi = {http://dx.doi.org/10.1017/qua.2022.28},
keywords = {Pleistocene; Yakutia; Yana Basin; Batagay thermokarst sinkhole; Permafrost; Fossil osteological material; Diagenesis; MIS 3 environment; Fauna remains preservation},
language = {eng},
issn = {0033-5894},
journal = {Quaternary Research},
title = {Microbial degradation of Pleistocene permafrost-sealed fossil mammal remains},
url = {https://www.cambridge.org/core/journals/quaternary-research/article/microbial-degradation-of-pleistocene-permafrostsealed-fossil-mammal-remains/36BFA00736486E77C4E4CECC58572ACE},
volume = {111},
year = {2023}
}
TY - JOUR
ID - 2212721
AU - Calábková, Gabriela - Chlachula, Jiří - Ivanov, Martin - Hložková, Michaela - Czerniawska, Jolanta - Vašinová Galiová, Michaela - Prokeš, Lubomír - Gadas, Petr
PY - 2023
TI - Microbial degradation of Pleistocene permafrost-sealed fossil mammal remains
JF - Quaternary Research
VL - 111
IS - January
SP - 84-106
EP - 84-106
PB - Cambridge University Press
SN - 00335894
KW - Pleistocene
KW - Yakutia
KW - Yana Basin
KW - Batagay thermokarst sinkhole
KW - Permafrost
KW - Fossil osteological material
KW - Diagenesis
KW - MIS 3 environment
KW - Fauna remains preservation
UR - https://www.cambridge.org/core/journals/quaternary-research/article/microbial-degradation-of-pleistocene-permafrostsealed-fossil-mammal-remains/36BFA00736486E77C4E4CECC58572ACE
N2 - Paleontological remains retrieved from permafrost represent the most informative records of Pleistocene ecosystems. Different levels of past microbial activity affecting fossil material preservation are presented for two selected bone samples—an almost intact Bison sp. metacarpus (45.0 ± 5.0 14C ka BP) and a weathered Equus sp. metacarpus (37.8 ± 1.7 14C ka BP) from the recently exposed cryogenic geo-contexts in the Yana River basin, NE Yakutia. Diagenetic changes in bone porosity and chemical composition as a result of the past microbial activity were investigated by multiple analytical methods. In the bison bone, which was permafrost-sealed shortly after death of the animal and conserved for ca. 45 ka in a frozen state in a cryolithic formation, only superficial microbial degradation processes were detected. Progressive microbial attacks characterize the horse bone, which was exposed to MIS 3 sub-aerial biogenic decay and modern surficial weathering. This is evidenced by extensive bacterial micro-boring with the typical focal destructions, an increase in microbial porosity, and de-mineralized osseous zones due to waterlogged and poorly oxygenated past depositional conditions. New information contributes to better understanding of the diagenesis particularities and the associated chemical and biological agents of the fossil osteological assemblages with respect to their taphonomic and paleoenvironmental implications.
ER -
CALÁBKOVÁ, Gabriela, Jiří CHLACHULA, Martin IVANOV, Michaela HLOŽKOVÁ, Jolanta CZERNIAWSKA, Michaela VAŠINOVÁ GALIOVÁ, Lubomír PROKEŠ a Petr GADAS. Microbial degradation of Pleistocene permafrost-sealed fossil mammal remains. \textit{Quaternary Research}. Cambridge University Press, 2023, roč.~111, January, s.~84-106. ISSN~0033-5894. Dostupné z: https://dx.doi.org/10.1017/qua.2022.28.
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