1,720,985 research outputs found
The Italian geological expeditions to Tripolitania and Cyrenaic regions (Libya, N-Africa) between 1911 and 1914
No full textThe contribution to the geological knowledge of Tripolitania and Cyrenaic regions (Libya N-Africa): the first Italian expedition between 1910 and 1914.
No full textThe tetrapod ichnoassociation of the Bletterbach (Trentino Alto-Adige) and its place among Late Permian terrestrial ecosystems
Full text linkIn this paper we provide an updated review of the tetrapod footprint association discovered in the Bletterbach Gorge (Southern Alps, NE Italy) from the ‘70s. We provide global-scale analysis integrating paleontological and climatic data highlight the importance of the Bletterbach ichnoassociation as key reference for low-latitude terrestrial ecosystems during the Lopingian (Late Permian). Our results provide evidence for a tight correlation between the distribution of the main herbivorous tetrapod clades (dicynodonts, pareiasaurs, captorhinids) and the latitudinal climatic zonation.In questo articolo viene proposta un’analisi aggiornata dell’associazione a impronte di tetrapodi rinvenuta a partire dagli anni ’70 del secolo scorso presso la Gola del Bletterbach (Alpi meridionali, Italia nord-orientale) e una sua contestualizzazione su scala globale basata sull’integrazione di dati paleontologici e climatici. Lo studio evidenzia l’importanza dell’associazione a tetrapodi del Bletterbach quale record eccezionale di un ecosistema terrestre di bassa latitudine durante il Lopingiano (Permiano superiore). I risultati dell’analisi a scala ecosistemica forniscono inoltre evidenza di una forte correlazione tra la distribuzione dei principali cladi di tetrapodi erbivori (dicinodonti, pareiasauri, captorinidi) e la zonazione climatica latitudinale.Fil: Bernardi, Massimo. Museo delle Scienze di Trento; ItaliaFil: Petti, Fabio Massimo. Museo delle Scienze di Trento; Italia. Università degli studi di Roma "La Sapienza"; ItaliaFil: Citton, Paolo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; ArgentinaFil: Romano, Marco. Museum für Naturkunde. Leibniz-Institut für Evolutions- und Biodiversitätsforschung; Alemani
Mass-transport deposits from the Toarcian of the Umbria-Marche-Sabina Basin (Central Italy)
No full textMass-transport deposits (MTDs) intercalated in slope/basinal successions, produced by submarine collapses and mass flows, are generally constituted of allochthonous elements sourced from platform margins. Here we present a noticeable exception where Toarcian calciclastic deposits made of pelagic carbonate elements are embedded in other pelagic carbonates. Selected outcrops pertaining to the Rosso Ammonitico Fm of three different pelagic carbonate platform (PCP)-basin systems were studied. The pelagic successions of the study areas onlap Early Jurassic structural highs. These clastic bodies partially replace the typical Toarcian reddish marls and shales of the Umbria-Marche-Sabina palaeogeographic Domain at different stratigraphic levels. The clasts range from blocks to megablocks; extraclasts of Corniola facies (Pliensbachian) and, sporadically, of Calcare Massiccio peritidal carbonates (Hettangian) are associated with Rosso Ammonitico intraclasts. The internal architecture of the MTDs and their emplacement processes, as well as their source and accumulation areas, were identified. Three distinct lithofacies characterise the clastic bodies, each one corresponding to a different emplacement process or to a different portion of the flow. The occurrence of lithified megablocks (>20 m across) of Corniola Fm suggests the exhumation of the buried portion of the unit. Synsedimentary extensional tectonics is the most likely triggering mechanism. Sedimentological analysis, coupled with geological mapping of the study areas, reveals the key role played by PCPs in the genesis of these MTDs. The early Toarcian reactivation of Hettangian palaeofaults bounding the structural highs is inferred. These faults, characterised by moderate offsets, crosscut the onlap wedges of the hangingwall successions, exhuming the older and lithified portion of Corniola Fm. Once became inactive, the fault planes were then eroded producing palaeoescarpments. Their backstepping, coupled with seismic shocks, produced the accumulation of the study clastic bodies
The “Geoitaliani” project: history of geology as a key for the spreading of scientific knowledge in Italy
No full textProtection of dinosaur footprints in carbonate deposits: the case of Sezze (Latium, central Italy) ichnosite
No full textMore than 200 dinosaur footprints were found on three stratigraphic surfaces in the abandoned quarry “Cava Petrianni”, about 70 km south of Rome, nearby the town of Sezze (Latium, central Italy). The ichnosite is located in the westernmost sector of the Lepini Mts., with an exposed carbonate succession belonging to the Lepini-Ausoni-Aurunci Unit. Three distinct trampled surfaces were recognised in a 250-m-thick succession referred to the “Laziale-Abruzzese-Campano domain” deposited in a persistent shallow carbonate platform setting from the Late Triassic to the Late Cretaceous. The footprints, preserved on carbonate platform limestones, are exposed to natural environment degradation (especially karst processes), that can irreversibly modify track morphology, resulting in the loss of details in a site of unique paleontological and paleobiogeographic value (Antonelli et al., 2023). The aim of the present project is to find an appropriate solution in the long-term preservation of dinosaur footprints produced in carbonate deposits from the environmental degradation naturally occurring in paleoichnological and geological sites. The final purpose is both enhancing this palaeontological heritage and proposing a possible solution applicable to other ichnosites with similar conditions. Several consolidants have been tested on the trampled surfaces to evaluate the better in terms of application, costs and results. In particular, a mineral consolidant based on the sol-gel technology (SIOX-5 RE50), a nano-sized silicon dioxide fixative/consolidant in colloidal aqueous dispersion (Nano ESTEL) and TEOS with chitosan were applied. In addition, a bioconsolidation process was tested, applying several bacterial strains, taking advantage from the natural bacterial ability to induce carbonate precipitation (Nigro et al., 2022).
Antonelli M., Romano M., De Sario F., Pignatti J., Sacco E. & Petti F.M. (2023) - Inferred oviraptorosaur footprints in the Apenninic Carbonate Platform: New tools for the identification of trackmakers from the Sezze ichnosite (lower-middle Cenomanian; central Italy). Cretaceous Res., 141, 105362. https://doi.org/10.1016/j.cretres.2022.105362.
Nigro L., Mura F., Toti M.P., Cirigliano A. & Rinaldi T. (2022) - Carbonatogenic bacteria on the ‘Motya Charioteer’ sculpture. J. Cult. Herit., 57, 256-264. https://doi.org/10.1016/j.culher.2022.09.009
Il passato è la chiave del presente e del futuro. Il progetto GEOITALIANI della Società Geologica Italiana
No full text“At war with the eagles” represents the first national event organized by the History of Geosciences Section, established in 2012 by the Italian Geological Society in order to recover and endorse the national geological culture. A century after the Italian intervention in the First World War, the meeting focuses on the role of geologists and cartographers on the alpine fronts, before, during and after hostilities. This short note briefly describes the history and purposes of the Geoitaliani project that aims to revitalize the importance of geology in the past as a basis for the future development of our Nation and the human journey on Planet Earth
Cretaceous tetrapod tracks from Italy: a treasure trove of exceptional biodiversity
Full text linkAfter about thirty years of investigation, the Cretaceous tetrapod track record from Italy has proved to be a ‘Rosetta Stone’ for improving understanding of the palaeogeographical and palaeoenvironmental evolution of the peri-Adriatic area. In the present contribution, we summarize current knowledge and diferent interpretations proposed on the basis of twelve ichnosites from northern, central and southern Italy. The tetrapod track record is represented by few ichnosites in the earliest Cretaceous, with the bulk of the record reported from carbonate platform deposits of the Aptian-Cenomanian interval and, in the Late Cretaceous, from a extensive-tracksite in Apulia preserving thousands of dinosaur footprints. On the whole, the ichnological diversity documented by the material indicates a high diversity of trackmakers, among which are sauropods, diferent kinds of theropods, ankylosaurs and hadrosaurs. The persistent occurrence of dinosaur footprints at diferent stratigraphic levels produced significant questions and constituted a dramatic constraint for the understanding of palaeogeographical and geodynamical evolution of the Mediterranean area during the Mesozoic, suggesting new and diferent interpretations that challenged previous reconstructions.Fil: Petti, Fabio Massimo. Museo Delle Scienze Di Trento; ItaliaFil: Antonelli, Mateo. Università di Roma; ItaliaFil: Citton, Paolo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; ArgentinaFil: Mariotti, Nino. Università di Roma; ItaliaFil: Petruzzelli, Marco. Università di Bari, Dipartimento di Scienze della Terra e Geoambientali; ItaliaFil: Pignatti, Johannes. Università di Roma; ItaliaFil: D’Orazi Porchetti, Simone. Università di Roma; ItaliaFil: Romano, Marco. Università di Roma; ItaliaFil: Sacchi, Eva. Università di Roma; ItaliaFil: Sacco, Enrico. Università di Roma; ItaliaFil: Wagensommer, Alexander. GRID (Gruppo di Ricerca sulle Impronte di Dinosauro), San Giovanni Rotondo; Itali
Ritratto di un gentiluomo con il papillon: Achille zuccari, segretario generale della società geologica Italiana
No full textFor almost fifty years, the spirit and core values of the Italian Geological Society have been preserved with the help of a particular person: its historical General Secretary Achille Zuccari (1926-2015). In 2016, after long time, a general assembly of the scientific institution firstly took place without that bow-tie wearing gentleman and his inseparable Tuscan cigar. The History of Geology Section has therefore organized a commemoration during the 88thSGI Meeting in Naples, collecting testimonies of Achille’s colleagues and friends. Born in Rome in 1926, he spent his childhood in Littoria (nowadays Latina) and then moved to Rome obtaining his high school diploma at “Cavour” Scientific Lyceum. As a working student (since 1952, he was employee of the national telephone company), Zuccari graduated in Geological Sciences at the University of Rome “La Sapienza” in 1959, under the supervision of Carmelo Maxia, with a thesis on the geology of middle Aniene River valley. In 1962, he married Anna Tilia, a girl met in the childhood, who became a micropaleontologist and stratigrapher under the guide of Angiola Maria Maccagno. In the same year, President Antonio Segni appointed Zuccari “Cavaliere della Repubblica Italiana”. In the earlier part of his career, he published a few papers concerning the geomorphology of the Aniene Basin, contributing in those years to the development of the discipline in central Italy, in cooperation with Elvidio Lupia Palmieri and Giancarlo Avena. In the ‘60s, he was assistant of Roberto Colacicchi and joined the Italian Glaciological Committee, participating to several scientific campaigns during that decade. At the end of this period, he passed the qualifying examination for teaching. Member of the Italian Geological Society since 1955, he was firstly Treasurer and Secretary (1967-69) and then, continuously from 1970 to 2011, General Secretary. Because of the charge, since 1967 he was also Editorial Manager of the SGI publications. In our vision, progress of science depends from the contribution of all the members of a community, including those working not in the spotlight. Achille Zuccari was the perfect example of such a lifestyle. Thus, the History of Geology Section, celebrating its fifth anniversary, decided to dedicate this Special Volume “Three centuries of geology in Italy” of the “Rendiconti online della Società Geologica Italiana” to his memory
- …
