Search results for "Jura"

Parainoceramyan. gen. forParainoceramusCox, 1954 (exVoronetz, 1936)partim(Bivalvia, Jurassic)

2015

Several Jurassic pterioid bivalve species have been referred to Parainoceramus Cox by different authors, yet this has proved inadequate because the meaning of such genus has been compounded by nomenclatural and idiomatic problems, as well as misinterpretations. Hence, the new genus Parainoceramya is here proposed to accommodate several species previously referred to Parainoceramus, with Crenatula ventricosa J. de C. Sowerby as its type. Permian species originally assigned to Parainoceramus, including the type species, are referred to the genus Kolymia Likharev. All species attributed to Parainoceramus s.l. are reviewed and the new genus is compared with related genera. As here understood, t…

Architecture and dynamics of a Maghrebian carbonate platform-basin transition around the Triassic/Jurassic Boundary: Sciacca zone, Sicily.

2007

Étude de la vulnérabilité de la forêt du Parc du Haut Jura vis-à-vis du changement climatique

2015

Ce mémoire a été rédigé à l’issue de la convention de recherche n°2010-100 contractée entre le Parc naturel régional du Haut-Jura et Théma (UMR 6049 du CNRS et Université de Franche-Comté) visant à définir les modalités d’une étude de « la vulnérabilité de la forêt du Parc du Haut Jura vis-à-vis du changement climatique ».L’un des objectifs de la contribution du Laboratoire ThéMA à cette étude a été d’analyser les caractéristiques du climat actuel et d’évaluer leur probable évolution au cours du XXIième siècle dans le contexte du « changement climatique » modélisé par les physiciens de l’atmosphère. Les aspects relatifs à la pédologie, l’autre segment important de la vulnérabilité de la for…

La monarchie anglo-normande face à la conspiration. La révolte des earls de 1075

2009

National audience; En 1075, trois des plus grands barons d'Angleterre trament une conspiration contre Guillaume le Conquérant. Sous le voile d'une juste résistance à l'action d'un souverain considéré comme un tyran se dissimule ce qui n'est autre qu'une tentative de coup d'Etat. Cet article propose une analyse du complot (ses formes théoriques et concrètes) et les réactions du pouvoir.

Bijural services as factors of production

2005

This study is primarily concerned with the security of transactions and contracts in contexts in which there is more than one legal system - in bijural (or multijural) societies - and with the contribution that bijural lawyers can make to the security of transactions and contracts, that is with the productivity of bijural lawyers. It is, as a consequence, focused on the demand for bijurallawyers as factor inputs in the production of contractual security and, at one remove, transaction security.1 To be in a position to proceed with this analysis, certain basic concepts must be clarified and the domain of the inquiry delineated. We devote the Introduction to these tasks.(...)

The Billiemi breccia: the record of Rhaetian/lowermost Jurassic brittle deformations along the Panormide shelf edge

2010

Oxyarietites boletzkyi n. gen., n. sp., nouveau genre et nouvelle espèce d'ammonite dans le Sinémurien inférieur de Bourgogne (France) : un rare préc…

2012

13 pages; International audience; L'une des toutes premières ammonites à coquille presque oxycône observée dans les séries fossilifères après la crise faunique de la limite Trias/Jurassique est décrite. Elle provient du Sinémurien inférieur (chronozone à Semicostatum ou à Turneri) de Bourgogne (Mavilly-Mandelot, Côte-d'Or, France). Cette nouvelle forme, Oxyarietites boletzkyi n. gen., n. sp., possède une coquille involute, comprimée et carénée dont le type clairement suboxycône est nouveau pour le Sinémurien inférieur. En raison de son aire ventrale carénée, ce taxon se rattache probablement à la super-famille des Arietitoidea Hyatt, 1875 sensu Guex (1995) mais son attribution familiale est…

Une frontière internationale comme catalyseur de dynamiques ?

2019

End-Triassic Extinction in a Carbonate Platform From Western Tethys: A Comparison Between Extinction Trends and Geochemical Variations

2022

The Triassic/Jurassic boundary section cropping out at Mt Sparagio in north-western Sicily (Italy) consists of a thick and continuous peritidal succession typical of a Tethyan carbonate platform. The combined chemostratigraphic and biostratigraphic study of this section allowed us to parallel the environmental variations inferred by the isotopic records and the extinction trends recorded by the benthic organisms. In the studied section, the isotope data of C, O, and S are indicative of serious environmental perturbations related to the Central Atlantic Magmatic Province (CAMP) activity, as recorded worldwide. Two negative excursions in the C-curve (Initial-CIE and Main-CIE) confirm the acid…

Integrating facies and structural analyses with subsidence history in a Jurassic-Cretaceous intraplatform basin: Outcome for paleogeography of the Pa…

2016

Abstract We illustrate the tectono-sedimentary evolution of a Jurassic–Cretaceous intraplatform basin in a fold and thrust belt present setting (Cala Rossa basin). Detailed stratigraphy and facies analysis of Upper Triassic–Eocene successions outcropping in the Palermo Mts (NW Sicily), integrated with structural analysis, restoration and basin analysis, led to recognize and describe into the intraplatform basin the proximal and distal depositional areas respect to the bordered carbonate platform sectors. Carbonate platform was characterized by a rimmed reef growing with progradational trends towards the basin, as suggested by the several reworked shallow-water materials interlayered into th…