Facies and palaeoecology of the late Viséan Actinopteria Black Shale Event in the Rhenish Mountains (Germany, Mississippian)

Nyhuis, Christian J.; Amler, Michael R. W.; Herbig, Hans-Georg

doi:10.1127/1860-1804/2015/0087

Cited by 4 publications

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“…Mudstones are predominant over the 991-988 m interval in MFA-1, which has significantly higher gamma API values (>300) than adjacent successions. Its thickness, lithology and position of the interval close to the Viséan-Namurian boundary at 980.5 m suggests it could represent the isochronous Upper Viséan Actinopteria Black Shale Event, which has been well documented in the Rhenish Mountains and the Harz Mountains in Germany (Ruprecht, 1937;Amler, 2006;Korn, 2008;Nyhuis et al, 2015). However, the eponymous bivalve Ptychoparia (Actinopteria) lepida (Goldfuss) was not observed in this interval, possibly because either strong shearing/tectonism destroyed the valves or the shell-bearing layers were lost via erosion.…”

Section: Lithostratigraphy and Microfacies Associationsmentioning

confidence: 99%

“…However, the eponymous bivalve Ptychoparia (Actinopteria) lepida (Goldfuss) was not observed in this interval, possibly because either strong shearing/tectonism destroyed the valves or the shell-bearing layers were lost via erosion. The thin section relating to the interval shows that the lithology has a homogeneous fabric and contains a moderate amount of small bioclasts, corresponding to the Actinopteria Black Shale microfacies type MF-2 (dark calcareous mudstone) as described by Nyhuis et al (2015).…”

Section: Lithostratigraphy and Microfacies Associationsmentioning

confidence: 99%

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Thin section petrography and chemostratigraphy: Integrated evaluation of an upper Mississippian mudstone dominated succession from the southern Netherlands

Nyhuis

Riley

Kalasinska³

2015

Netherlands Journal of Geosciences

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Sedimentological data acquired by thin section petrography is a rich source of information to better understand and interpret depositional environments that are dominated by fine-grained deposits. This study provides an evaluation of the sedimentological and geochemical changes recorded over Upper Viséan to Lower Namurian successions preserved in a core section from a well drilled in the southern part of the Netherlands.Facies analysis and the recognition of microfacies associations allow detailed interpretations of depositional environments. Interpretation of additional geochemical data acquired by portable X-ray fluorescence analyses has resulted in a chemostratigraphic zonation for the core section.The zonation reflects stratigraphic changes in the mineralogy of the sedimentary successions. Integration of the microfacies associations and the chemostratigraphic zonation has led to the identification of three so-called depositional zones, which show the development of depositional settings from Late Viséan to Early Namurian times. Depositional Zone 1 consists of fine-grained turbiditic limestones and mudstones deposited in a distal carbonate ramp setting during Latest Viséan times. The overlying Depositional Zone 2 corresponds to the Geverik Member (Lower Namurian) and is particularly heterogeneous in geochemical and lithological terms: the zone reflects a complex interplay between different parameters such as sediment source, transport mechanisms and oxygen content that are assumed to be governed by fluctuating sea levels and changing depositional environments (from basinal to shallow marine settings). Sandy lenticular mudstones are predominant in the lower part of Depositional Zone 2 and show that sedimentation was via erosive bedload, whilst the common fossiliferous mudstones present within the upper part of the same zone yield evidence for increased endobenthic activity in dysoxic conditions. The successions assigned to Depositional Zone 3 ( = Epen Formation -Namurian) are the products of cyclic sedimentation of a terrestrial sourced delta.

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Section: Lithostratigraphy and Microfacies Associationsmentioning

confidence: 99%

Section: Lithostratigraphy and Microfacies Associationsmentioning

confidence: 99%

Thin section petrography and chemostratigraphy: Integrated evaluation of an upper Mississippian mudstone dominated succession from the southern Netherlands

Nyhuis

Riley

Kalasinska³

2015

Netherlands Journal of Geosciences

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Early Carboniferous parallelodontid Arcoida (Bivalvia) from the hercynotypic facies of the Rhenohercynian Basin and their Devonian origin

Friedel,

Amler

2024

Palaeobio Palaeoenv

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Parallelodontids, as typical bivalves of the shelf facies, have been successfully diversified since the Middle Devonian. During the second radiation of the family in the latest Devonian (Strunian regional stage) and early Carboniferous, the shelf areas yielded highly diverse parallelodontids, but they also invaded the deeper basins of the northwesternmost Palaeotethys, particularly the Rhenohercynian Basin. Here, we provide a comprehensive description and comparison of the parallelodontids of the deeper marine environments in the Mississippian across Europe. In addition to the already known species Parallelodon semicostatus (McCoy, 1844), P. tenuistria (McCoy, 1844), and P. geinitzi De Koninck, 1885, the species P. beneckei (Tornquist, 1896) and P. decheni (von Koenen, 1879) are revived after years of disuse. ‘Byssoarca lanceolata’, a distorted fragment described by McCoy in 1844 from Irish mudstones, is considered as nomen dubium. Additional taxa mentioned in the literature complete the diversity of parallelodontids of the Carboniferous Kulm Basin and adjacent basinal settings. Parallelodon decheni proves to be the most characteristic parallelodontid in the Kulm Basin. In addition, material from the Strunian of Germany, here described as Parallelodon pauli n. sp., is available to infer the development of the Kulm parallelodontids from the external shelf areas of the latest Devonian. The diversity of parallelodontids in basinal settings is surprisingly high despite the atypical habitat of Palaeozoic arcoids. Morphological similarities between the species, which would indicate a similar habitat, could not be identified.

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The Carboniferous Period

Aretz¹,

Herbig²,

Wang³

et al. 2020

Geologic Time Scale 2020

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Facies and palaeoecology of the late Viséan Actinopteria Black Shale Event in the Rhenish Mountains (Germany, Mississippian)

Cited by 4 publications

References 0 publications

Thin section petrography and chemostratigraphy: Integrated evaluation of an upper Mississippian mudstone dominated succession from the southern Netherlands

Thin section petrography and chemostratigraphy: Integrated evaluation of an upper Mississippian mudstone dominated succession from the southern Netherlands

Early Carboniferous parallelodontid Arcoida (Bivalvia) from the hercynotypic facies of the Rhenohercynian Basin and their Devonian origin

The Carboniferous Period

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