DC pole | Wartość | Język |
dc.contributor.author | Krzykawski, Tomasz | - |
dc.contributor.author | Szopa, Krzysztof | - |
dc.contributor.author | Niedźwiedzki, Robert | - |
dc.contributor.author | Setkiewicz, Krzysztof | - |
dc.contributor.author | Czaja, Maria | - |
dc.date.accessioned | 2022-04-14T11:43:50Z | - |
dc.date.available | 2022-04-14T11:43:50Z | - |
dc.date.issued | 2022 | - |
dc.identifier.citation | "Minerals" (2022), Vol. 12, iss. 4, art. no. 469 | pl_PL |
dc.identifier.issn | 2075-163X | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12128/23193 | - |
dc.description.abstract | The new exposure of the Upper Muschelkalk clays and dolomites located south of Kalety
(Tarnogórski District, Silesia, Poland) provided numerous remains of vertebrates represented by
teeth, scales, long bones, and coprolites. Despite the influence of hydrothermal processes leading
to dolomitization and Zn-Pb deposit formation, the preservation of fossil remains is good. The
taxonomic diversity and accumulation of vertebrate debris in the dolomite are similar to other “bone
beds” from the Muschelkalk and the Lower Keuper units. The SEM-EDS, EMP-WDS, and XRD
analyses confirm that the examined remains consist of hydroxylapatite containing carbonate ions.
Most vertebrate teeth as well as some bone fragments show zoning in the BSE imaging. In tooth
cross-sections, three or two zones are preserved: (I) the outermost zone, associated with diagenetic
mineralization of enameloid apatite, (II) a intermediate zone (orthodentine), and (III) the most porous
internal zone (osteodentine). Decreasing P, Ca, Sr in the composition of the apatite which forms
successive zones, is visible from the most external to the central part. Selective diagenetic substitution
and adsorption of some elements by apatite crystals can allow recognition of the genetic origin of
highly damaged or transported fragments scattered in the sedimentary layers. The chemical behavior
of bioapatite, from deposition to digenesis, shows its useful role for identification of the formation
process and potential, younger changes (e.g., hydrothermal overprint). The X-ray diffraction data,
particularly cell parameters “a” and “c”, can determine the degree of crystallinity and/or diagenesis.
Moreover, correlation between some elements/ions (e.g., Sr, Ba, Ca, Mg, F, OH) can be helpful for the
identification of the fossil type, especially if the bones are small and incomplete. | pl_PL |
dc.language.iso | en | pl_PL |
dc.rights | Uznanie autorstwa 3.0 Polska | * |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/pl/ | * |
dc.subject | Muschelkalk bone bed | pl_PL |
dc.subject | Upper Silesia | pl_PL |
dc.subject | bioapatite | pl_PL |
dc.subject | vertebrate bones | pl_PL |
dc.title | Chemical Diversity of Teeth and Bone Fragments from a Newly Discovered Upper Muschelkalk Bone Bed from Silesia, Poland | pl_PL |
dc.type | info:eu-repo/semantics/article | pl_PL |
dc.identifier.doi | 10.3390/min12040469 | - |
Pojawia się w kolekcji: | Artykuły (WNP)
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