Browsing Institutt for geofag by Author "Callegaro, Sara"

Now showing items 1-19 of 19

  • Assessing Origins of End‐Triassic Tholeiites From Eastern North America Using Hafnium Isotopes 
    Elkins, Lynne J.; Meyzen, Christine M; Callegaro, Sara; Marzoli, Andrea; Bizimis, Michael (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    The driving processes responsible for producing the Central Atlantic Magmatic Province, the Large Igneous Province associated with end‐Triassic rifting of Pangea, remain largely debated. Because their compositions encompass ...
  • Cretaceous Large Igneous Provinces: from volcanic formation to environmental catastrophes and biological crises 
    Percival, Lawrence M. E.; Matsumoto, Hironao; Callegaro, Sara; Erba, Elisabetta; Kerr, Andrew C.; Mutterlose, Jorg; Suzuki, Katsuhiko (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
    The Cretaceous Period was marked by the formation of numerous large igneous provinces (LIPs), several of which were associated with geologically rapid climate, environmental and biosphere perturbations, including the early ...
  • Deep CO2 in the end-Triassic Central Atlantic Magmatic Province 
    Capriolo, Manfredo; Marzoli, Andrea; Callegaro, Sara; Dal Corso, Jacopo; Newton, Robert J.; Wignall, Paul B.; Youbi, Nassrrdine; Szabó, Csaba (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Large Igneous Province eruptions coincide with many major Phanerozoic mass extinctions, suggesting a cause-effect relationship where volcanic degassing triggers global climatic changes. In order to fully understand this ...
  • Deep Mantle Component and Continental Crust Remobilization in the Source of Vesteris Seamount, East Greenland Margin 
    Belosa, Lea; Callegaro, Sara; Meyzen, Christine M; Gaina, Carmen; Polteau, Stephane; Bizimis, Michael; Mazzini, Adriano (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
    Abstract Vesteris Seamount is a large Quaternary intraplate submarine volcano in the SW Greenland Sea, about 1,000 km NE of Iceland and 300 km NW of the Mohn's spreading ridge, whose mode of formation remains unsolved. We ...
  • Editorial: How Large Igneous Provinces (LIPs) during the Triassic shaped modern-day ecosystems 
    Callegaro, Sara; Dal Corso, Jacopo; Song, Haijun (Journal article / Tidsskriftartikkel / PublishedVersion, 2023)
  • Environmental crises at the Permian–Triassic mass extinction 
    Dal Corso, Jacopo; Song, Haijun; Callegaro, Sara; Chu, Daoliang; Sun, Yadong; Hilton, Jason; Grasby, Stephen E.; Joachimski, Michael; Wignall, Paul B. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2022)
    The link between the Permian–Triassic mass extinction (252 million years ago) and the emplacement of the Siberian Traps Large Igneous Province (STLIP) was first proposed in the 1990s. However, the complex cascade of ...
  • Fluorine partitioning between quadrilateral clinopyroxenes and melt 
    Baker, Don R.; Callegaro, Sara; De Min, Angelo; Whitehouse, Martin J.; Marzoli, Andrea (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2022)
    Abstract Concentrations of fluorine and chlorine were measured in glasses (quenched melts) and coexisting clinopyroxene, orthopyroxene, olivine, and plagioclase in run products of experiments previously used to ...
  • Geochemical Constraints Provided by the Freetown Layered Complex (Sierra Leone) on the Origin of High-Ti Tholeiitic CAMP Magmas 
    Callegaro, Sara; Marzoli, Andrea; Bertrand, Herve´; Blichert-Toft, Janne; Reisberg, Laurie; Cavazzini, Giancarlo; Jourdan, Fred; Davies, Joshua H.F.L.; Parisio, Laura; Bouchet, Romain; Paul, Andre; Schaltegger, Urs; Chiaradia, Massimo (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
    The Freetown Layered Complex (FLC) is a massive mafic layered intrusion cropping out along the coast of Sierra Leone. The present combined geochemical and geochronological (40Ar/39Ar on plagioclase: 201·7 ± 0·7 and 202·3 ...
  • Geochemistry of deep Tunguska Basin sills, Siberian Traps: correlations and potential implications for the end-Permian environmental crisis. 
    Callegaro, Sara; Svensen, Henrik Hovland; Neumann, Else Ragnhild; Planke, Sverre; Jerram, Dougal Alexander; Polozov, Alexander; Deegan, Frances M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Abstract A vast portion of the plumbing system of the Siberian Traps Large Igneous Province (STLIP) is emplaced in the Tunguska Basin, where borehole data reveal ubiquitous and abundant sills with great lateral extension. ...
  • Gondwana LIPs: Plate reconstructions, volcanic basins and sill volumes. In: Large Igneous Provinces from Gondwana and Adjacent Regions 
    Svensen, Henrik; Torsvik, Trond Helge; Callegaro, Sara; Augland, Lars Eivind; Heimdal, Thea Hatlen; Jerram, Dougal Alexander; Planke, Sverre; Pereira, Egberto (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Gondwana was an enormous supertarrane. At its peak, it represented a landmass of about 100 × 106 km2 in size, corresponding to approximately 64% of all land areas today. Gondwana assembled in the Middle Cambrian, merged ...
  • Large-scale sill emplacement in Brazil as a trigger for the end-Triassic crisis 
    Heimdal, Thea Hatlen; Svensen, Henrik; Ramezani, Jahandar; Iyer, Karthik Herman; Pereira, Egberto; Rodrigues, René; Jones, Morgan Thomas; Callegaro, Sara (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
  • Late Permian to Late Triassic Large Igneous Provinces: Timing, Eruptive Style and Paleoenvironmental Perturbations 
    Boscaini, Andrea; Callegaro, Sara; Sun, Yadong; Marzoli, Andrea (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    The emplacement of the Siberian Traps, the Central Atlantic Magmatic Province (CAMP) and the Wrangellia have been linked to the end-Permian, the end-Triassic mass extinctions, and to the Carnian Pluvial Episode (CPE), ...
  • Magma–Shale Interaction in Large Igneous Provinces: Implications for Climate Warming and Sulfide Genesis 
    Deegan, Frances M.; Bédard, Jean H.; Grasby, Stephen E.; Dewing, Keith; Geiger, Harri; Misiti, Valeria; Capriolo, Manfredo; Callegaro, Sara; Svensen, Henrik Hovland; Yachimchuk, Chris; Aradi, László E.; Freda, Carmela; Troll, Valentin R (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2022)
    Large Igneous Provinces (LIPs) whose magma plumbing systems intersect sedimentary basins are linked to upheavals of Earth’s carbon and sulfur cycles and thus climate and life history. However, the underlying mechanistic ...
  • The main pulse of the Siberian Traps expanded in size and composition 
    Augland, Lars Eivind; Ryabov, Viktor V.; Vernikovsky, Valery A.; Planke, Sverre; Polozov, Alexander; Callegaro, Sara; Jerram, Dougal Alexander; Svensen, Henrik (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Emplacement of large volumes of (sub)volcanic rocks during the main pulse of the Siberian Traps occurred within <1 m.y., coinciding with the end-Permian mass extinction. Volcanics from outside the main Siberian Traps, e.g. ...
  • Massive methane fluxing from magma–sediment interaction in the end-Triassic Central Atlantic Magmatic Province 
    Capriolo, Manfredo; Marzoli, Andrea; Aradi, László E.; Ackerson, Michael R.; Bartoli, Omar; Callegaro, Sara; Dal Corso, Jacopo; Ernesto, Marcia; Gouvêa Vasconcellos, Eleonora M.; De Min, Angelo; Newton, Robert J.; Szabó, Csaba (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Abstract Exceptional magmatic events coincided with the largest mass extinctions throughout Earth’s history. Extensive degassing from organic-rich sediments intruded by magmas is a possible driver of the catastrophic ...
  • Recurring volcanic winters during the latest Cretaceous: Sulfur and fluorine budgets of Deccan Traps lavas 
    Callegaro, Sara; Baker, Don R.; Renne, Paul R.; Melluso, Leone; Geraki, Kalotina; Whitehouse, Martin J.; De Min, Angelo; Marzoli, Andrea (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Two events share the stage as main drivers of the Cretaceous-Paleogene mass extinction—Deccan Traps volcanism, and an asteroid impact recorded by the Chicxulub crater. We contribute to refining knowledge of the volcanic ...
  • Sulfur and chlorine in nakhlite clinopyroxenes: Source region concentrations and magmatic evolution 
    Baker, Don R.; Callegaro, Sara; Marzoli, Andrea; De Min, Angelo; Geraki, Kalotina; Whitehouse, Martin, J.; Krzesinska, Agata Magdalena; Fioretti, Anna Maria (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
    The volatile concentrations of the martian mantle and martian magmas remain important questions due to their role in petrogenesis and planetary habitability. The sulfur and chlorine concentrations, and their spatial ...
  • The quintet completed: The partitioning of sulfur between nominally volatile-free minerals and silicate melts 
    Callegaro, Sara; Geraki, Kalotina; Marzoli, Andrea; De Min, Angelo; Maneta, Victoria (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    Abstract Magmatic systems are dominated by five volatiles, namely H2O, CO2, F, Cl, and S (the igneous quintet). Multiple studies have measured partitioning of four out of these five volatiles (H2O, CO2, F, and ...
  • Tracing volcanic emissions from the Central Atlantic Magmatic Province in the sedimentary record 
    Lindström, Sofie; Callegaro, Sara; Davies, Joshua H.F.L.; Tegner, Christian; Marzoli, Andrea; van de Schootbrugge, Bas; Krarup Pedersen, Gunver; Youbi, Nasrrddine; Sanei, Hamed (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    The end-Triassic mass extinction (ETME) is thought to have been caused by voluminous, pulsed volcanic activity of the Central Atlantic Magmatic Province (CAMP). Over the last decades, various geochemical signals and proxy ...