Magnetic susceptibility and spectral gamma logs in the Tithonian–Berriasian pelagic carbonates in the Tatra Mts (Western Carpathians, Poland): Palaeoenvironmental changes at the Jurassic/Cretaceous boundary

Grabowski, Jacek; Schnyder, Johann; Sobień, Katarzyna; Koptíková, Leona; Krzemiński, Leszek; Pszczółkowski, Andrzej; Hejnar, J.; Schnabl, Petr

doi:10.1016/j.cretres.2013.02.008

Cited by 30 publications

(18 citation statements)

References 71 publications

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“…This shifted to an increase in origination rates and diversity in the late Tithonian and Early Cretaceous (Danelian & Johnson, 2001;Kiessling, 2002;Grabowski et al, 2013), although Kocsis, Kiessling & Pálfy (2014) recovered strongly depressed origination rates at the end of the Jurassic, and no significant changes in diversity through the J/K boundary. In relative terms, the J/K boundary saw three times as many boundary-crossing radiolarian genera as the Tr/J boundary, with Jurassic and Cretaceous faunas remaining largely unchanged (O'Dogherty et al, 2009).…”

Section: (B) Radiolariansmentioning

confidence: 99%

Biotic and environmental dynamics through the Late Jurassic–Early Cretaceous transition: evidence for protracted faunal and ecological turnover

Mannion¹,

Upchurch²,

Sutton³

et al. 2018

Preprint

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The Late Jurassic to Early Cretaceous interval represents a time of environmental upheaval and cataclysmic events, combined with disruptions to terrestrial and marine ecosystems. Historically, the Jurassic/Cretaceous (J/K) boundary was classified as one of eight mass extinctions. However, more recent research has largely overturned this view, revealing a much more complex pattern of biotic and abiotic dynamics than has previously been appreciated. Here, we present a synthesis of our current knowledge of Late Jurassic-Early Cretaceous events, focusing particularly on events closest to the J/K boundary. We find evidence for a combination of short-term catastrophic events, large-scale tectonic processes and environmental perturbations, and major clade interactions that led to a seemingly dramatic faunal and ecological turnover in both the marine and terrestrial realms. This is coupled with a great reduction in global biodiversity which might in part be explained by poor sampling. Very few groups appear to have been entirely resilient to this J/K boundary 'event', which hints at a 'cascade model' of ecosystem changes driving faunal dynamics. Within terrestrial ecosystems, larger, more-specialised organisms, such as saurischian dinosaurs, appear to have suffered the most. Medium-sized tetanuran theropods declined, and were replaced by larger-bodied groups, and basal eusauropods were replaced by neosauropod faunas. The ascent of paravian theropods is emphasised by escalated competition with contemporary pterosaur groups, culminating in the explosive radiation of birds, although the timing of this is obfuscated by biases in sampling. Smaller, more ecologically diverse terrestrial non-archosaurs, such as lissamphibians and mammaliaforms, were comparatively resilient to extinctions, instead documenting the origination of many extant groups around the J/K boundary. In the marine realm, extinctions were focused on low-latitude, shallow marine shelf-dwelling faunas, corresponding to a significant eustatic sea-level fall in the latest Jurassic. More mobile and ecologically plastic marine groups, such as ichthyosaurs, survived the boundary relatively unscathed. High rates of extinction and turnover in other macropredaceous marine groups, including plesiosaurs, are accompanied by the origin of most major lineages of extant sharks. Groups which occupied both marine and terrestrial ecosystems, including crocodylomorphs, document a selective extinction in shallow marine forms, whereas turtles appear to have diversified. These patterns suggest that different extinction selectivity and ecological processes were operating between marine and terrestrial ecosystems, which were ultimately important in determining the fates of many key groups, as well as the origins of many major extant lineages. We identify a series of potential abiotic candidates for driving these patterns, including multiple bolide impacts, several episodes of flood basalt eruptions, dramatic climate change, and major disruptions to oceanic systems. The J/K t...

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Section: (B) Radiolariansmentioning

confidence: 99%

Biotic and environmental dynamics through the Late Jurassic–Early Cretaceous transition: evidence for protracted faunal and ecological turnover

Mannion¹,

Upchurch²,

Sutton³

et al. 2018

Preprint

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“…† Gamma-ray spectrometry (GRS) measurements are related to the abundance of the three dominant radioactive elements occurring in sedimentary rocks: K, Th and U. For carbonate rocks, K and Th are interpreted as reflecting clastic GRS curves have often been compared with MS patterns, and differences and similarities can provide insight into detrital and/or diagenetic influences (Bábek et al 2010;Koptíková et al 2010a, b, Koptíková 2011Kozłowski & Sobień 2012;Ellwood et al 2013;Grabowski et al 2013;Chadimova et al 2015;Devleeschouwer et al 2015;Mayrhofer & Lukeneder 2015). In Devonian carbonates from the Barrandian area in the Czech Republic (Požáry-3 section), Koptíková et al (2010a) showed that there is a relatively good correlation between MS and GRS (Fig.…”

Section: Comparison With Other Proxiesmentioning

confidence: 99%

Magnetic susceptibility application: a window onto ancient environments and climatic variations: foreword

Silva

Whalen

Hladil

et al. 2015

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Magnetic susceptibility (MS) is a powerful tool, which is being applied increasingly on sedimentary rocks to constrain stratigraphic correlations, or as a palaeo-environmental or palaeoclimatic tool. The origin of the magnetic minerals responsible for the variations in MS can be linked to various phenomena such as detrital inputs, pedogenesis, bacterial precipitation or diagenesis. Therefore, it is critical to improve our knowledge of the origin of the MS signal in order to apply it for correlations or as a proxy. Here, we present a synthesis of the techniques that can be applied to get a better understanding of the origin of the MS signal, through comparison with other palaeo-environmental proxies, through magnetic measurements or through dissolution and direct observation of the extracted minerals. We also propose an overview of the different techniques applied in order to use MS as a correlation tool, and we show various examples of successful applications of MS as a recorder of change in past sea-level and climate. We also present the main results and activities of the IGCP-580 project 'Application of magnetic susceptibility as a palaeoclimatic proxy on Palaeozoic sedimentary rocks and characterization of the magnetic signal'.

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“…The CaCO 3 content reaches up to 90 % again in the Pieniny Fm. (325-360), where nannoconid and calcareous microplankton remnants become abundant (Tremolada et al 2006;Michalík et al 2009;Grabowski et al 2013). …”

Section: Carbonate and C Org Contentsmentioning

confidence: 99%

“…1): the Strážovce section (Borza 1984;Michalík et al 1990); the Hlboča section (Grabowski et al 2010) and Pośrednie sections in the Tatra Mts. (Grabowski & Pszczółkowski 2006;Grabowski et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Stratigraphy, plankton communities, and magnetic proxies at the Jurassic/Cretaceous boundary in the Pieniny Klippen Belt (Western Carpathians, Slovakia)

Michalı́k¹,

Reháková²,

Grabowski³

et al. 2016

Geologica Carpathica

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Abstract:A well preserved Upper Tithonian-Lower Berriasian Strapkova sequence of hemipelagic limestones improves our understanding of environmental changes occurring at the Jurassic/Cretaceous boundary in the Western Carpathians. Three dinoflagellate and four calpionellid zones have been recognized in the section. The onset of the Alpina Subzone of the standard Calpionella Zone, used as a marker of the Jurassic/Cretaceous boundary is defined by morphological change of Calpionella alpina tests. Calpionellids and calcified radiolarians numerically dominate in microplankton assemblages. The first occurrence of Nannoconus wintereri indicates the beginning of the nannofossil zone NJT 17b Subzone. The FO of Nannoconus steinmannii minor was documented in the lowermost part of the Alpina Subzone. This co-occurrence of calpionellid and nannoplankton events along the J/K boundary transition is typical of other Tethyan sections. Correlation of calcareous microplankton, of stable isotopes (C, O), and TOC/CaCO 3 data distribution was used in the characterization of the J/K boundary interval. δ 13 C values (from +1.09 to 1.44 ‰ VPDB) do not show any temporal trends and thus show a relatively balanced carbon-cycle regime in sea water across the Jurassic/ Cretaceous boundary. The presence of radiolarian laminites, interpreted as contourites, and relatively high levels of bioturbation in the Berriasian prove oxygenation events of bottom waters. The lower part of the Crassicolaria Zone (up to the middle part of the Intermedia Subzone) correlates with the M19r magnetozone. The M19n magnetozone includes not only the upper part of the Crassicollaria Zone and lower part of the Alpina Subzone but also the FO of Nannoconus wintereri and Nannoconus steinmannii minor. The reverse Brodno magnetosubzone (M19n1r) was identified in the uppermost part of M19n. The top of M18r and M18n magnetozones are located in the upper part of the Alpina Subzone and in the middle part of the Ferasini Subzone, respectively. The Ferasini/Elliptica subzonal boundary is located in the lowermost part of the M17r magnetozone. A little bit higher in the M17r magnetozone the FO of Nannoconus steinman nii steinmannii was identified.

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Magnetic susceptibility and spectral gamma logs in the Tithonian–Berriasian pelagic carbonates in the Tatra Mts (Western Carpathians, Poland): Palaeoenvironmental changes at the Jurassic/Cretaceous boundary

Cited by 30 publications

References 71 publications

Biotic and environmental dynamics through the Late Jurassic–Early Cretaceous transition: evidence for protracted faunal and ecological turnover

Biotic and environmental dynamics through the Late Jurassic–Early Cretaceous transition: evidence for protracted faunal and ecological turnover

Magnetic susceptibility application: a window onto ancient environments and climatic variations: foreword

Stratigraphy, plankton communities, and magnetic proxies at the Jurassic/Cretaceous boundary in the Pieniny Klippen Belt (Western Carpathians, Slovakia)

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