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Literatura académica sobre el tema "Fossiles calcaires"
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Artículos de revistas sobre el tema "Fossiles calcaires"
Barale, Georges. "De nouveaux restes fossiles attribués aux Araucariacées dans les calcaires lithographiques du Crétacé inférieur du Montsec (province de Lérida, Espagne)". Review of Palaeobotany and Palynology 75, n.º 1-2 (diciembre de 1992): 53–64. http://dx.doi.org/10.1016/0034-6667(92)90149-b.
Texto completoGall, J. C. "Dietl G., Schweigert G. – Im Reich der Meerengel. Der Nusplinger Plattenkalk und seine Fossilien. (« Au royaume des anges de mer. Les calcaires lithographiques de Nusplingen et leurs fossiles »). Verlag Dr. Friedrich Pfeil, München, 2001, 144 p. (ISBN 3-931516-90-3). Prix : 30 €." Annales de Paléontologie 88, n.º 3 (julio de 2002): 187. http://dx.doi.org/10.1016/s0753-3969(02)01043-1.
Texto completoSAUCÈDE, THOMAS, JEAN-CHRISTOPHE DUDICOURT y PHILIPPE COURVILLE. "Description of two new fossil echinoids (Echinodermata: Echinoidea) from the Early Hauterivian (Early Cretaceous) of the Paris Basin (France)". Zootaxa 3512, n.º 1 (10 de octubre de 2012): 75. http://dx.doi.org/10.11646/zootaxa.3512.1.5.
Texto completoTaylor, Paul D., Gérard Breton, Danièle Guinot, Antonio De Angeli y Alessandro Garassino. "The Cenozoic age of the supposed Jurassic crab Hebertides jurassica Guinot, De Angeli & Garassino, 2007 (Crustacea, Decapoda, Brachyura)". Natural History Sciences 153, n.º 1 (1 de enero de 2012): 71. http://dx.doi.org/10.4081/nhs.2012.71.
Texto completoOssó-Morales, Àlex, Alessandro Garassino, Francisco J. Vega y Pedro Artal. "Pleuronassa timerchidouensis n. gen., n. sp. (Axiidea, Callianassidae) from the Calcaires à slumps de Taghit Fm., Late Campanian of the Moyenne Moulouya, NE Morocco". Natural History Sciences 152, n.º 2 (1 de septiembre de 2011): 165. http://dx.doi.org/10.4081/nhs.2011.165.
Texto completoAnceau, Annick, Cyrille Prestianni, Frédéric Hatert y Julien Denayer. "Les sciences géologiques à l’Université de Liège : deux siècles d’évolution". Bulletin de la Société Royale des Sciences de Liège, 2017, 27–101. http://dx.doi.org/10.25518/0037-9565.7303.
Texto completoTesis sobre el tema "Fossiles calcaires"
Morin, Nathalie. "Les Microcodium : architecture, structure et composition, comparaison avec les racines calcifiées". Montpellier 2, 1993. http://www.theses.fr/1993MON20025.
Texto completoPille, Lucie. "Foraminifères et algues calcaires du Mississippien supérieur (Viséen supérieur-Serpukhovien) : rôles biostratigraphique, paléoécologique et paléogéographique aux échelles locale, régionale et mondiale". Thesis, Lille 1, 2008. http://www.theses.fr/2008LIL10028/document.
Texto completoThe foraminifers, the important proxies in the Late Mississippian carbonate lenses of southem France, belong nearly exclusively to the Fusulinata class. The Mississippian foraminifers are especiaIly endobenthic forms and rare epiphytes. Height new regionaI bizones are defined: SFI (latest Asbian), SF2 (Asbian/Brigantian boundary), SF3 (earliest Brigantian), SF4 (early Brigantian), SF5 (late Brigantian), SF6 (Brigantian/Serpukhovian boundary), SF7 (early Serpukhovian), SF 8 (late Serpukhovian). A comparative paleobathymetry of the microbialitic buildups indicates: a Saccamminopsis stage (in the disphotic zone); a Frustulata stage (between the disphotic and euphotic zones); the opportunistic foraminifers (in the lower euphotic zone); the Fasciella, Renalcis and foraminifers zone in the upper euphotic zone. At the top ofbioconstructions, there are lagoons with a great biodiversity offoraminifers and algae. The homogenous populations of Tethyan foraminifers are found, during the Mississippian, from Nova Scotia (Canada) to Japan. Thanks to the Uralian seaway, these populations attain the North-Alaska. The algal population is more endemic and permits to suggest that Montagne Noire constitutes at least during Brigantien an isolated microplate. This unit is denominated Province with Eovelebitella or Eovelebitelland. It is located between the northem supercontinent North. Euramerica (where different Blocks: Avallonia, Armorica and Baltica are connected) and the southem supercontinent which is the traditionally reconstructed Gondwana. More than fourty foraminiferal and algal taxa are introduced as Domina nuda and will be officially re-described in further publications
Perret, Marie-France. "Recherches micropaleontologiques et biostratigraphiques (conodontes - Foraminifères) dans le Carbonifère pyrénéen". Toulouse 3, 1989. http://www.theses.fr/1989TOU30196.
Texto completoBenzaggagh, Mohamed. "Etude stratigraphique des calcaires du jurassique supérieur dans le Prérif interne : régions de Msila et de Moulay Bou Chta, Maroc". Lyon 1, 1988. http://www.theses.fr/1988LYO11766.
Texto completoBensalah, Mustapha. "L'éocène continental d'Algérie : importance de la tectogenèse dans la mise en place des sédiments et des processus d'épigénie dans leur transformation". Lyon 1, 1989. http://www.theses.fr/1989LYO10086.
Texto completoHairie, Clara. "La dégradation de Byne : efflorescences de sels de calcium sur les collections de micropaléontologie". Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPAST084.
Texto completoThe appearance of crystalline efflorescence on calcareous objects stored in polluted environments is commonly referred to as "Byne's decay". It results from the emission of acidic volatile organic compounds (VOCs) from storage materials, which react with calcium carbonate to form organic calcium salts. This includes acetates and mixed acetate-formate salts that cause irreversible deterioration of the substrate. Until now, only macroscopic objects undergoing Byne's decay had been reported in the literature.This work focuses on how Byne's decay can also affect microscopic calcareous specimens from micropaleontology collections. It was initiated by the digitization of the foraminifera collection of Alcide d'Orbigny (1802-1857), housed at the Muséum national d'Histoire naturelle (MNHN), which revealed significant damage due to the presence of saline efflorescences.A condition report was carried out on the whole of the d'Orbigny collection (more than 3600 specimens), highlighting that the alterations, both ancient and evolutionary, are influenced by the crystallinity of the tests and the origin of the places where the foraminifera were collected. Similar collections closely located were examined for comparison and archival research was conducted to trace the material history of the collection since its entry into the MNHN. They highlight several moves and accidents such as the flooding of the Seine in 1910, which would explain the particularly high levels of humidity inside the tubes where the foraminifera are kept. Significant variations in temperature, combined with the presence of VOC-emitting materials introduced at the end of the 19th century in the assembly of the specimens, are thus at the origin of the acid pollution and the proliferation of salts.At the same time, an artificial aging procedure was developed to reproduce Byne's decay on unaltered specimens. The degradation products formed on the aged specimens, as well as on a representative selection of historical ones, were analysed non-invasively and without contact by using micro-Raman spectroscopy and synchrotron X-ray diffraction. These analyses revealed mineralogical phases different from those observed in the literature on macroscopic collections. Thus, calcium formates and especially the tetragonal polymorphic phase [β-Ca(HCOO)2] known to be unstable when synthesized in laboratory conditions, predominate. No calcium acetate or mixed salt could be identified on d'Orbigny's foraminifera. Aging shows that the relative humidity and the size of the specimens play a primordial role in the formation of the salts: humid conditions favour the crystallization of calcium formate directly on the specimen, while acetate, very hygroscopic, is subject to deliquescence-crystallization cycles that lead to its redispersion around micrometer-scale specimens.Finally, to better understand the predominance of calcium formate [β-Ca(HCOO)2], different calcium formate solutions were left to evaporate and placed in environments with different humidity to study the transformation towards the stable phase [α-Ca(HCOO)2]. Semi-quantitative analysis of the products shows that the presence of ions such as those found in foraminiferal shells (Mg2+, Sr2+…) favours the formation of the metastable phase and slows down the transition β-->α.This work shows that the nature of the salts formed by Byne's decay is not only dependent on the VOCs present, but also on the size of the specimens, their composition, their test crystallization, and the moisture and temperature cycles to which they were exposed
Hubert, Benoît L. M. "Les stromatopores givétiens et frasniens de l'Ardenne méridionale et du Boulonnais (France et Belgique) : sédimentologie, paléobiodiversité et paléobiogéographie". Thesis, Lille 1, 2008. http://www.theses.fr/2008LIL10045/document.
Texto completoThe Devonian stromatoporoids are developped in Ardenne mainly during the Givetian. They are also weil represented during the Frasnian. The aim of this work is to analyse the biodiversity of stromatoporoids in southem Ardenne during these two periods and to compare the result with what we know in Boulonnais. Stromatoporoids are constrained to the nature of sediments (i. e. carbonated facies). Preliminary studies of sedimentologic environments are necessary to realised an approach of biodiversity. During the Givetian, the southern Ardenne is mainly characterised by shallow water and carbonated shelves. Abundant reefs have found the best conditions for their developpment. They are distributed at different scale and at different time. Some differences are constated between Givetian and Frasnian reefs. Thus, some species seems to be more developped in restricted facies, and are predominant inside the builders. Finally, stromatoporoids of the southern Ardenne seems to have affinities with faunas distributed along the same continent (i. e. Laurentia) and also with other geographic area (Afghanistan) along the Gondwana
Libros sobre el tema "Fossiles calcaires"
Nammour, Tanios. Environnement & homme: Cônes torrentiels (d'ablation) asociés aux paléosols, croutes calcaires, plages fossiles & leurs silex taillés à Jbail et dans le sub-littoral du Liban depuis le Néogène. Beyrouth: Distribution, Dép. des publications de l'Université libanaise, 1995.
Buscar texto completoNammour, Tanios. Environnement & homme: Cônes torrentiels (d'ablation) asociés aux paléosols, croutes calcaires, plages fossiles & leurs silex taillés à Jbail et dans le sub-littoral du Liban depuis le Néogène. Beyrouth: Distribution, Dép. des publications de l'Université libanaise, 1995.
Buscar texto completoC, Mangold, ed. Faciès de dépôt et stratigraphie séquentielle des calcaires bajociens du Jura méridional. Villeurbanne, France: Centre des sciences de la terre, Université Claude-Bernard, Lyon I, 1995.
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