Sedimentary evolution of a coral-, microbialites- and debris-rich Upper Jurassic reef (upper Tithonian, eastern Sardinia, Italy)

Ricci, Cristiano; Rusciadelli, Giovanni; Porta, Giovanna Della; Lanfranchi, Alessandro; Jadoul, Flavio; Lathuilière, Bernard

doi:10.1016/j.sedgeo.2018.07.010

Cited by 8 publications

(5 citation statements)

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“…9). Pleș et al (2013Pleș et al ( , 2016 for Getic Carbonate Platform ( Romania); Schlagintweit (2011,2012) and Schlagintweit & Gawlick (2007, 2008, 2011 for Northern Calcareous Alps (Austria); Milan (1969) andTurnšek et al (1981) for Slovenia and Croatia; Hoffmann et al (2017) for Štramberk carbonate platform (Czech Republic); Rusciadelli et al 2011 andRicci et al (2018) for Appenines (Italy); Kaya & Altiner (2015) for Turkey;Termier et al (1985) for Portugal;Leinfelder et al (2005) and Reitner (1992) for Spain, Germany and France.…”

Section: Discussion Taphonomical Featuresmentioning

confidence: 99%

“…Perturbatacrusta, Neuropora, Calcistella, Murania Ellipsactinia Limestone (Central Apennines, Italy) (Rusciadelli et al 2011;Ricci et al 2018) Štramberk Limestone (Czech Republic) - Hoffmann et al 2017 General zonation model for the Upper Jurassic intra-Tethyan reef systems based on the most abundant calcified sponge species (present study -Getic Carbonate Platform; Turnšek et al 1981;Leinfelder et al 2005;Schlagintweit & Gawlick 2005, 2008Rusciadelli et al 2011;Pleš et al 2013Pleš et al , 2015Hoffmann et al 2017;Ricci et al 2018)…”

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confidence: 86%

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Exceptionally preserved calcified sponge assemblagesin Upper Jurassic carbonates of the eastern Getic Carbonate Platform (Southern Carpathians, Romania)

Pleș¹,

Schlagintweit²,

Lazăr³

et al. 2021

Comptes Rendus Palevol

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A rich poriferan assemblage was identified within the easternmost part of the Getic Carbonate Platform of Romania (Grădiștei Gorges). The excellent preservation state of most poriferans here led to the discovery of a new species (Neuropora gigantea Pleș & Schlagintweit, n. sp.) and to the identification of previously unknown diagnostic features in some species (Sarsteinia babai Schlagintweit & Gawlick, 2006 emend., Neuropora lusitanica Termier, 1985, Sphaeractinia steinmanni Canavari, 1893). Calciagglutispongia yabei Reitner, 1992, Sarsteinia babai and Sphaeractinia steinmanni are reported for the first time from the Upper Jurassic carbonates of the Getic Carbonate Platform. The sedimentary input fluctuations and the nutrient competition had an important role in understanding the morphological adaptations of the analysed species. The existing palaeoecological and palaeoenvironmental conditions generated different distribution patterns towards the reef profile and also preferential adaptations to a specific Tethyan domain. As opposed to the poriferan assemblages from the northern Tethyan shelves, these organisms formed sponge-coral-microencruster boundstones at the margins and fore-reefal zones of isolated carbonate platforms within the intra-Tethyan realm. The importance of calcified sponges in reef-zonation is highlighted by the establishment of a general zonation model. Three zones can be distinguished: 1) Cladocoropsis-Milleporidium zone (back-reef area); 2) Bauneia-Chaetetopsis-Parastromatopora zone (central reef area); and 3) Sphaeractinia/Ellipsactinia-Neuropora zone for the fore-reef area. In the absence of a true reef framework these calcified sponges developed typical morphologies, environmental adaptations and partnerships with other biotic groups which strongly influenced the carbonate production throughout the intra-Tethyan domain.

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Section: Discussion Taphonomical Featuresmentioning

confidence: 99%

mentioning

confidence: 86%

Exceptionally preserved calcified sponge assemblagesin Upper Jurassic carbonates of the eastern Getic Carbonate Platform (Southern Carpathians, Romania)

Pleș¹,

Schlagintweit²,

Lazăr³

et al. 2021

Comptes Rendus Palevol

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“…Bioclastic debris, apart of reef building macroorganisms (corals, calcified sponges), microbialites and microencrusters, are components of coral reefs. High debris production and small content of micrite are typical for the Late Jurassic reefs of the Tethyan domain, and some of them even have been called coral debris reefs (Leinfelder, 1992;Leinfelder et al, 2005;Rusciadelli et al, 2011;Rusciadelli and Ricci, 2013;Ricci et al, 2018b). The composition and genesis of detrital limestones have implications for the interpretation of the hydrodynamics in different parts of the carbonate platform, the mechanisms of redeposition of detrital material and platform morphology (gentle vs steepened slope profile) and improvement of the understanding of the dynamics and development of carbonate platform systems (e.g., Rusciadelli and Ricci, 2013;Harchegani and Morsilli, 2019).…”

Section: Detrital Faciesmentioning

confidence: 99%

A lost carbonate platform deciphered from clasts embedded in flysch: Štramberk-type limestones, Polish Outer Carpathians

Hoffmann¹,

Kołodziej²,

Kowal-Kasprzyk³

2021

ASGP

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Limestones designated the Štramberk-type are the most common carbonate exotic clasts (exotics) embedded in the uppermost Jurassic-Miocene flysch deposits of the Polish Outer Carpathians. About 80% of stratigraphically determinable carbonate exotics from the Silesian, Sub-Silesian and Skole units (nappes) are of Tithonian (mostly)-Berriasian (sporadically Valanginian) age. A study of these exotics revealed eight main facies types: coral-microbial boundstones (FT 1), microencruster-microbial-cement boundstones (FT 2), microbial and microbial-sponge boundstones (FT 3), detrital limestones (FT 4), foraminiferal-algal limestones (FT 5), peloidalbioclastic limestones (FT 6), ooid grainstones (FT 7), and mudstones-wackestones with calpionellids (FT 8). Štramberk-type limestones in Poland and the better known Štramberk Limestone in the Czech Republic are remnants of lost carbonate platforms, collectively designated the Štramberk Carbonate Platform. Narrow platforms were developed on intra-basinal, structural highs (some of them are generalized as the Silesian Ridge), with their morphology determined by Late Jurassic synsedimentary tectonics. An attempt was made to reconstruct the facies distribution on the Tithonian-earliest Cretaceous carbonate platform. In the inner platform, coral-microbial patch-reefs (FT 1) grew, while the upper slope of the platform was the depositional setting for the microencruster-microbial-cement boundstones (FT 2). Microbial and microbial-sponge boundstones (FT 3), analogous to the Oxfordian-Kimmeridgian boundstones of the northern Tethyan shelf (also present among exotics), were developed in a deeper setting. In the inner, open part of the platform, foraminiferal-algal limestones (FT 5) and peloidal-bioclastic limestones (FT 6) were deposited. Poorly sorted, detrital limestones (FT 4), including clastsupported breccias, were formed mainly in a peri-reefal environment and on the margin of the platform, in a high-energy setting. Ooid grainstones (FT 7), rarely represented in the exotics, were formed on the platform margin. Mudstones-wackestones with calpionellids (FT 8) were deposited in a deeper part of the platform slope and/or in a basinal setting. In tectonic grabens, between ridges with attached carbonate platforms, sedimentation of the pelagic (analogous to FT 8) and allodapic ("pre-flysch") Cieszyn Limestone Formation took place. The most common facies are FT 4 and FT 1. Sedimentation on the Štramberk Carbonate Platform terminated in the earliest Cretaceous, when the platform was destroyed and drowned. It is recorded in a few exotics as thin, neptunian dykes (and large dykes in the Štramberk Limestone), filled with dark, deep-water limestones. Reefal facies of the Štramberk Carbonate Platform share similarities in several respects (e.g., the presence of the microencrustermicrobial-cement boundstones) with reefs of other intra-Tethyan carbonate platforms, but clearly differ from palaeogeographically close reefs and coral-bearing facies of the epicontinental Tethyan shelf (e.g., coeval lim...

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“…The upper part of the succession (approximately lower Tithonian-Berriasian) represents the recovery of the carbonate system after the subaerial exposure, with the development of coral-stromatoporoid reefs with high coral diversity (lower Mt. Bardia Fm, Ricci et al 2018). The Fig.…”

Section: Geological Settingmentioning

confidence: 99%

“…1). Previous studies focused on the stratigraphic reconstruction of the sedimentary succession (Jadoul et al 2009(Jadoul et al , 2010Lanfranchi et al 2011;Casellato et al 2012;Jadoul 2018;Muttoni et al 2018) and on the characterization of Tithonian reefs (Ricci et al 2018). This study focuses on the Callovian-Kimmeridgian southern portion (Fig.…”

Section: Introductionmentioning

confidence: 99%

Development of coral–sponge–microbialite reefs in a coated grain-dominated carbonate ramp (Upper Jurassic, eastern Sardinia, Italy)

Nembrini

Porta

Berra

2020

Facies

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The Late Jurassic is a peak time of diversification of reefs with corals, stromatoporoids, calcareous and siliceous sponges, and microbialites during the Phanerozoic. This study focuses on the Callovian–Kimmeridgian carbonate succession of eastern Sardinia, deposited at tropical latitudes on the European passive margin that recorded from the late Oxfordian the evolution from a coated grain-dominated to a reef-bearing carbonate ramp. The coated grain-dominated carbonate ramp (phase 1; Callovian–middle Oxfordian) includes inner ramp ooidal shoals and peloidal packstone in the middle-to-outer ramp. The overlying reef-bearing ramp (phase 2; late Oxfordian–late Kimmeridgian) is characterized by three types (1–3) of bioconstructions. The distribution of these build-ups along the middle-to-outer ramp depositional profile reflects bathymetric parameters, related to the interplay of water energy and light penetration. Type 1 build-ups developed in the proximal middle ramp and consist of 45 m thick, 100 m wide, coral-stromatoporoid boundstone associated with coral–stromatoporoid rudstone–grainstone. Type 2 build-ups, colonizing deeper environments in the middle ramp, are lens-shaped coral–calcareous sponge–diceratid boundstone including stromatoporoids and chaetetid sponges, 1–2 m thick and 3–4 m wide, associated with bioclastic packstone–grainstone. Type 3 lens-shaped calcareous and siliceous sponge–coral–microbialite boundstone build-ups (1 m thick and a few metres wide) formed in lower energy, distal middle-to-outer ramp settings. The evolution of the eastern Sardinian carbonate ramp reflects the Oxfordian–Kimmeridgian spread of the coral–sponge-microbialite reefs along the Tethyan European passive margin.

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Sedimentary evolution of a coral-, microbialites- and debris-rich Upper Jurassic reef (upper Tithonian, eastern Sardinia, Italy)

Cited by 8 publications

References 50 publications

Exceptionally preserved calcified sponge assemblagesin Upper Jurassic carbonates of the eastern Getic Carbonate Platform (Southern Carpathians, Romania)

Exceptionally preserved calcified sponge assemblagesin Upper Jurassic carbonates of the eastern Getic Carbonate Platform (Southern Carpathians, Romania)

A lost carbonate platform deciphered from clasts embedded in flysch: Štramberk-type limestones, Polish Outer Carpathians

Development of coral–sponge–microbialite reefs in a coated grain-dominated carbonate ramp (Upper Jurassic, eastern Sardinia, Italy)

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