Facies evolution of the Jurassic-Cretaceous transition in the Eastern Getic Carbonate Platform, Romania: Integration of sequence stratigraphy, biostratigraphy and isotope stratigraphy

Mircescu, Cristian Victor; Bucur, Ioan I.; Săsăran, Emanoil; Pleș, George; Ungureanu, Răzvan; Oprişa, Alin

doi:10.1016/j.cretres.2019.01.015

Cited by 16 publications

(7 citation statements)

References 38 publications

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“…However, the whole assemblage points to a Berriassian, possibly early Valanginian age. Similar facies types are present in adjacent regions such as Dâmbovicioara zone, Piatra Craiului Mountains, or the Bucegi Massif (Bucur et al, 2009;Grădinaru et al, 2016;Mircescu et al, 2019) (Table 1). These regions may have represented the source area of the carbonate material.…”

Section: Biostratigraphic Remarksmentioning

confidence: 67%

“…Paleocurrent measurements, morphometric analysis, and detailed petrographical analysis of non-carbonate elements are necessary in a future studies. Săndulescu (1964), Patrulius (1969), Bucur et al (2014), Grădinaru et al (2016), Săsaran et al (2017 and Mircescu et al (2019).…”

Section: Biostratigraphic Remarksmentioning

confidence: 98%

“…Several authors have studied the geology of this unit from the Carpathian Bend Zone (Jekelius, 1920;Oncescu, 1943;Popescu, 1966;Patrulius, 1969;Bucur, 1978;Patrulius et al, 1980). More recent studies (post 1990) focused on the carbonate successions from the Piatra Craiului-Dâmbovicioara region (Bucur et al, 2009;Grădinaru et al, 2016;Săsăran et al, 2017;Mircescu et al, 2019). Conglomerate deposits were described from the same area by Ungureanu et al (2015;2019).…”

Section: Introductionmentioning

confidence: 98%

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Carbonate Clasts From Cretaceous Conglomerate Deposits of the Postăvaru Massif (Southern Carpathians, Romania) – Depositional Environments and Biostratigraphic Remarks

Șerban¹,

Mircescu²,

Ungureanu³

et al. 2020

Actapalrom

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The objective of this study is to describe the composition of the carbonate elements from the upper Albian–Cenomanian Postăvaru Conglomerates. Eight sections were studied. Two major types of conglomerates are identified in the field and thin sections: polymictic orthoconglomerates and paraconglomerates. Carbonate clasts are dominant in both types of conglomerates. Other subordinated clasts are composed of quartzites, sericite-chlorite schists and gneisses. Facies data allow reconstructing the depositional environments, while microfossil assemblages were used to establish the age of the studied carbonate clasts. The identified microfacies characterize a large variety of depositional environments, ranging from basin to shallow water environments (platform margin and inner platform depositional settings). The identified microfossil associations are indicative for three biostratigraphic intervals: Kimmeridgian–Tithonian, Tithonian–Berriasian and Berriasian–? lower Valanginian.

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Section: Biostratigraphic Remarksmentioning

confidence: 67%

Section: Biostratigraphic Remarksmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

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Carbonate Clasts From Cretaceous Conglomerate Deposits of the Postăvaru Massif (Southern Carpathians, Romania) – Depositional Environments and Biostratigraphic Remarks

Șerban¹,

Mircescu²,

Ungureanu³

et al. 2020

Actapalrom

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“…The vast majority of the identified dasycladalean algae prefer such high energy, platform margin depositional settings with reefs or bioclastic banks (e.g., Campbelliella striata, Neoteutloporella socialis, Petrascula bursiformis) (DRAGASTAN, 1975a;SCHLAGINTWEIT & EBLI, 1999;BUCUR et al, 2005). In addition, the entire association of encrusting organism and calcareous sponges characterizes such platform margin complexes that were strongly developed at the Jurassic-Cretaceous transition MIRCESCU et al, 2019). Terrigenous quartz fragments are rare.…”

Section: Discussionmentioning

confidence: 99%

Upper Jurassic-Lower Cretaceous limestones from the Hăghimaș Massif (Eastern Carpathians, Romania): Microfacies, microfossils and depositional environments

Neamţu¹

2019

Carnets géol.

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“…One of the key research issues concerning the Late Jurassic Tethyan realm is the influence of microencrusters such as Crescentiella, Bacinella, serpulids, Thaumatoporella, Radiomura, Lithocodium, Iberopora, Labes and Terebella in bioconstruction frameworks formation (e.g., Crescenti 1969;Leinfelder et al 1996;Dupraz and Strasser 1999;Fürsich et al 2003;Uta and Bucur 2003;Shiraishi and Kano 2004;Reolid et al 2005;Schlagintweit and Gawlick 2008;Senowbari-Daryan et al 2008;Rusciadelli et al 2011;Pleş et al 2013Pleş et al , 2017Kaya and Altiner 2015;Hoffmann et al 2017Hoffmann et al , 2021Krajewski and Schlagintweit 2018;Mircescu et al 2019;Granier 2021;Kołodziej and Ivanova 2021;Słowiński et al 2022 and references therein).…”

Section: Introductionmentioning

confidence: 99%

The role of the microencruster-microbial reef-building consortium in organic reefs evolution (Late Jurassic, northern Tethys shelf, southern Poland)

Krajewski

Olchowy

2023

Facies

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The carbonate sediments of the Polish part of Tethys shelf contain Crescentiella-microbial-cement facies. The facies is associated with Middle Oxfordian-Lower Kimmeridgian microbial-grain dominated reefs, microbial-sponge dual hybride reefs, and less frequently sponge/coral-microbial-abiotic triple hybride reefs. The Crescentiella (incertae sedis) and microbialites form numerous cluster bioconstructions with stromatactis-like cavities in which rapid lithification was supported by early marine cementation. However, the factors controlling the development of such bioconstructions and the role of Crescentiella in the development of reef frameworks remain enigmatic. The sediments from five localities were investigated using thin-sections analyses supported by cathodoluminescence observations, stable oxygen and carbon isotope analyses and dispersive X-ray spectrometry. The development of Crescentiella-microbial-cement facies took place in three intervals spanning the Transversarium, Upper Bifurcatus, and Planula zones and coinciding with the period of maximum development of the Late Jurassic reefs in Poland. The reefs contain microencruster Crescentiella which was an important rigid framework constructor among the microbialites while the skeletal metazoans were rare. The inferred palaeosetting of the facies ranges from the seaward steep-fronted outer margin to the upper slope broad reef complex/microplatform where the development of skeletal metazoans was limited and mainly formed stratiform microbialites binding coated grain-bioclastic dominated sediments. The occurrence of Crescentiella-microbial-cement boundstone facies is useful for palaeogeographic, palaeobathymetric, and palaeotectonic investigations.

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Facies evolution of the Jurassic-Cretaceous transition in the Eastern Getic Carbonate Platform, Romania: Integration of sequence stratigraphy, biostratigraphy and isotope stratigraphy

Cited by 16 publications

References 38 publications

Carbonate Clasts From Cretaceous Conglomerate Deposits of the Postăvaru Massif (Southern Carpathians, Romania) – Depositional Environments and Biostratigraphic Remarks

Carbonate Clasts From Cretaceous Conglomerate Deposits of the Postăvaru Massif (Southern Carpathians, Romania) – Depositional Environments and Biostratigraphic Remarks

Upper Jurassic-Lower Cretaceous limestones from the Hăghimaș Massif (Eastern Carpathians, Romania): Microfacies, microfossils and depositional environments

The role of the microencruster-microbial reef-building consortium in organic reefs evolution (Late Jurassic, northern Tethys shelf, southern Poland)

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