Plattenkalk: Difference between revisions
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| ⚫ | '''Plattenkalk''' is a very finely grained [[limestone]] chemically precipitated in a stratified [[water column]] under conditions where [[bioturbation]] does not occur. The reasons for the quiet depositional environment and the processes of sediment accumulation vary greatly among different plattenkalks, but the lack of bioturbation contributes to the creation of thinly bedded, finely laminated, undisturbed limestones where exceptionally detailed fossils or imprints of organisms occur. The [[Solnhofen Plattenkalk]] in [[Bavaria]] is a famous example where complete skeletons of large marine vertebrates and impressions of soft-bodied animals have been found.<ref>{{cite book|author=Bottjer, Etter, Hagadorn, Tang|title=Exceptional Fossil Preservation|date=2001|publisher=Columbia University Press}}</ref> |
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[[File:Jura-Plattenkalk, muscheliger Bruch.jpg|thumb|A conchoidal fracture surface formation on the ''Solnhofen Platy Limestone'']] |
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| ⚫ | '''Plattenkalk''' is a very finely grained [[limestone]] chemically precipitated in a stratified [[water column]] under conditions where [[bioturbation]] does not occur. The reasons for the quiet depositional environment and the processes of sediment accumulation vary greatly among different plattenkalks, but the lack of bioturbation contributes to the creation of thinly bedded, finely laminated, undisturbed limestones where exceptionally detailed fossils or imprints of organisms occur. The [[Solnhofen Plattenkalk]] in [[Bavaria]] is a famous example where complete skeletons of large marine vertebrates and impressions of soft-bodied animals have been found.<ref>{{cite book|author=Bottjer, Etter, Hagadorn, Tang|title=Exceptional Fossil Preservation|date=2001|publisher=Columbia University Press}}</ref><ref>Wilkin, J.T.R. (2020). ''The south German Plattenkalks''. Geology Today 36(1), pp. 27-32. https://doi.org/10.1111/gto.12288</ref> [[Lithographic limestone]] is a type of plattenkalk chosen for its suitable [[lithography]] characteristics. |
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==References== |
==References== |
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Latest revision as of 19:08, 7 March 2023
 Plattenkalk at Solnhofen | |
| Composition | |
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| Limestone |
Plattenkalk is a very finely grained limestone chemically precipitated in a stratified water column under conditions where bioturbation does not occur. The reasons for the quiet depositional environment and the processes of sediment accumulation vary greatly among different plattenkalks, but the lack of bioturbation contributes to the creation of thinly bedded, finely laminated, undisturbed limestones where exceptionally detailed fossils or imprints of organisms occur. The Solnhofen Plattenkalk in Bavaria is a famous example where complete skeletons of large marine vertebrates and impressions of soft-bodied animals have been found.[1][2] Lithographic limestone is a type of plattenkalk chosen for its suitable lithography characteristics.
References
[edit]- ^ Bottjer, Etter, Hagadorn, Tang (2001). Exceptional Fossil Preservation. Columbia University Press.
{{cite book}}: CS1 maint: multiple names: authors list (link) - ^ Wilkin, J.T.R. (2020). The south German Plattenkalks. Geology Today 36(1), pp. 27-32. https://doi.org/10.1111/gto.12288
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