Diagnostic Features of Paleozoic Deltaic Sediments of Central Bohemia

Kukal, Zdeněk

doi:10.1111/j.1365-3091.1964.tb00636.x

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“…The volcano-sedimentary infill of the basin was deposited during the Cambrian and consists of a sequence of predominantly clastic rocks with a maximum thickness of 2500 m. Havl ı cek (1971) distinguished eight formations capped by upper Cambrian to Lower Ordovician volcanites of the Stra sice Volcanic Complex (Drost et al 2004). The basin was interpreted as an intermontanetype depression by Havl ı cek (1971) and Kukal (1971). Most of the sedimentary succession is thought to have been deposited in a continental environment; however, at least two unitsthe Paseky Shale Member of the Hol siny-Ho rice Formation and the Jince Formationare of marine origin (Kukal 1971).…”

Section: Geological Setting and Previous Researchmentioning

confidence: 99%

“…The basin was interpreted as an intermontanetype depression by Havl ı cek (1971) and Kukal (1971). Most of the sedimentary succession is thought to have been deposited in a continental environment; however, at least two unitsthe Paseky Shale Member of the Hol siny-Ho rice Formation and the Jince Formationare of marine origin (Kukal 1971).…”

Section: Geological Setting and Previous Researchmentioning

confidence: 99%

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Acritarch clusters from the Cambrian (Miaolingian) of the Příbram-Jince Basin, Czech Republic

2022

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Monogeneric clusters of five acritarch genera (Adara, Cymatiosphaera, Eliasum, Synsphaeridium and Timofeevia) were discovered in palynological residues obtained from fine-grained siliciclastic samples from the middle Cambrian (Miaolingian) Jince Formation of the P r ıbram-Jince Basin (Czech Republic). The clusters consist of two to more than 100 individual specimens and lack a common pattern of organisation. Acritarchs within clusters fall within a similar size range, regardless of generic affinity. Proposed mechanisms for the formation of these acritarch clusters are discussed: for the Jince Formation clusters, aggregation within algal blooms or primary colonial behaviour are the most plausible explanations. In addition, a summary of reports of acritarch clusters from lower Palaeozoic strata is included: clusters of a variety of acritarch genera have been documented from rocks of early Cambrian to Late Devonian age.

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Section: Geological Setting and Previous Researchmentioning

confidence: 99%

Section: Geological Setting and Previous Researchmentioning

confidence: 99%