bluuebunny/crossref_metadata_2025_split huggingface dataset:
Contribution a l'etude structurale du groupe Judica (Sicile orientale)
Authors: Schmidt di Friedburg Paolo , Trovo Antonio 
Published: March 2020

Abstract
The Judica mountain group of eastern Sicily (Italy) contains three limestone chains, five to ten kilometers long, surrounded by clay beds. There had been some disagreement about the group, some workers believing they were anticlinal strata in normal stratigraphic sequence and others maintaining that they were a chaotically displaced mass without stratigraphic relationship. New studies and seismic exploration indicate that the group is a system of displaced limestone blocks with clay beds at their base. The bottom surface seems to have functioned as a plane of parting for the allochthons whose displacement began during the Miocene and continued into the Pliocene.
Structures megametriques et evolution de la mer Tyrrhenienne et des zones perityrrheniennes
Authors: Grandjacquet Claude 
Published: March 2020

Abstract
A large view of the evolution and structural history of the Tyrrhenian sea and bordering areas suggests that towards the end of the Permian distensions occurring in the western Mediterranean resulted in the opening of a passage to the Atlantic. Lower Eocene deformations along the Sicilian-Tunisian front were either due to local marginal disequilibrium or to the northern drift of the African continent. Oligocene emergence is evident in the Apennines and in Calabria through the existence of widespread hiatuses and by bauxitic and ferruginous beds. Large scale Oligocene movements brought the African continent to its maximum proximity with Europe. It was in the same period that the clay scaglia and flysch nappes began sliding in Tuscany although the movement of Calabrian nappes in southern Italy did not occur until the lower and middle Miocene.
Zone preapulienne, zone ionienne et zone du Gavrovo en Peloponnese occidental
Authors: Aubouin Jean , Dercourt Jean 
Published: March 2020

Abstract
The stratigraphy of faulted calcareous massifs in the western Peloponnesus, east of the front of the Pinde nappe, is examined. The Klokova, Skolis, Lapithos, and Pylos massifs, directly bordering the front of the nappe belong to the Gavrovo zone. Surrounded by discordant Pliocene, they are post-paroxysmal, late Miocene and Pliocene. The Cape Pappas massif displays an upper Cretaceous to Eocene series with facies corresponding to the Ionian zone, further north. The island of Zante belongs to the Preapulian zone. The Ionian trough is observed to be narrower in Peloponnesus than in northern Greece, suggesting an axial termination to the south.
Observations sedimentologiques et paleontologiques sur le Bartonien d'une nouvelle coupe a la Chapelle-en-Serval (Oise)
Authors: Pomerol Charles 
Published: March 2020

Abstract
At a new road cut near Chapelle-en-Serval (France) a sedimentary sequence is exposed in which Beauchamp facies continental sands and sandstones are overlain by coarse lagoonal sandstones of the Ducy formation, in turn overlain by calcareous sandstones of the Mortefontaine formation, and capped by silty limestone of the St. Ouen formation. The Beauchamp-Ducy contact marks the boundary between Auversian and Marinesian time and indicates a post-Auversian emergence. The rapid increase of Discorbis bractifera in the Ducy beds indicates a lagoonal environment associated with the lacustrine deposition. The Marinesian transgression is indicated by increasing salinity observed in the succession of faunal assemblages.
Nouvelles donnees sur les Ammonodes triasiques du gisement de l'Asklepieion (Argolide, Grece)
Authors: Dufour Thierry 
Published: March 2020

Abstract
New species and varieties of ammonites were found in the Asklepieion bed of siliceous red limestone on the Argolide peninsula of northeastern Peloponnesus. Most of the fossils in the bed were covered by a pellicle composed of a mixture of iron and manganese. One hundred specimens, representing 35 species and varieties, are listed. Among these is one new species, Joannites renzi, and the following three new varieties: Joannites cymbiformis (Wulfen) var. decourti; Joannites klipsteini Mojs. var. bourrouilhi, and Arcestes pannonicus Mojs. var. termierae.
Les unites superieures de la Sierra Espuna (Espagne)
Authors: Paquet J. 
Published: March 2020

Abstract
The Sierra Espuna massif of Murcia is composed of tectonic units of which only the upper four were studied. In the south, the Morron de Totana unit exhibits a series of beds almost continuous from the Permo-Triassic to the upper Eocene-lower Oligocene. It is overlapped to the northeast by the Prat Mayor unit, characterized by middle Cretaceous glauconites, upper Cretaceous limestone with Microcodium beds, and lagoonal to continental Paleogene deposits. Overlapping the Prat Mayor is the Perona unit, characterized by Pliensbachian (lower Liassic) marl-sandstone and ferruginous rocks. The El Bosque unit covers the others and is thought to have a more southerly origin than the preceding three. These units have been previously included in a single structural complex.
Stratigraphie du Cretace terminal et de l'Eocene en bordure des Mogods (Tunisie septentrionale)
Authors: Crampon Norbert , Sigal Jacques 
Published: March 2020

Abstract
In the vicinity of Bizerte and Hedil, the Cretaceous and Eocene disappear to the west under the thick sandstones of the Khroumirie and Mogods formations, the Tunisian extension of the Numidian sandstones. The study of the different beds of the late Cretaceous and Eocene, from the detailed data and microfaunal identifications, has provided a precise outline of the stratigraphy and paleogeography in a region of incipient orogeny: recognition of microfaunal zones, age of the series, rapid variations in thickness and facies, permanence of early orogenic movements, confirmation and generalization of the transgressive character of the Khroumirie sandstones.
Le banc des Hermelles de la baie du Mont-Saint-Michel, bioherme a annelides; sedimentologie, structure et genese
Authors: Mathieu R. 
Published: March 2020

Abstract
The Hermelles bank is a bioherm built by sedentary polychaete annelids along the coast of the English Channel (Bay of Saint-Michel). Situated in the lower part of the intertidal zone, the bank forms a mass over 400 hectares in surface area. Compilation of a detailed map has permitted a precise analysis of the 'reef' constructions and the associated sediments (biogenic sands, fine sands, calcareous mud) and the proposal of a hypothesis concerning the genesis and evolution of the bank. The faunal association encountered is not characteristic of the bank; the bioherm is characterized by the favorable environmental conditions found there by the organisms. The hydrodynamic regime dominant in this part of the Bay of Saint-Michel is responsible for the establishment and development of the reef complex.
Sur la presence du Miocene marin en bordure sud de l'arc de Nice, dans la region de Roquebrune-Cap-Martin (Alpes-Maritimes)
Authors: Anglada Roger , Follacci Jean Paul , Meneroud Jean Pierre 
Published: March 2020

Abstract
Lithofacies, microfaunal lists, SW-NE-trending Miocene gulf at the base of Jurassic cliffs, France
Reflexions sur la finalite des mesures geochronologiques (periodicite des evenements du Precambrien et derive des continents)
Authors: Choubert Boris 
Published: March 2020

Abstract
Precambrian magmatic cycles, U &lt;sup&gt;235&lt;/sup&gt; half-life, correlations, orogeny-sedimentation megacycles, rhythmic evolution of earth's crust
Sur la stratigraphie et la tectonique du groupe du Jebel Musa (Rif septentrional, Maroc)
Authors: Durand Delga Michel , Villiaumey Michel 
Published: March 2020

Abstract
The allochthonous Musa group of upper Triassic shale, Jurassic limestone, dolomite, marl, and radiolarite, and Cretaceous to Paleogene clastics lies upon Senonian (upper Cretaceous) autochthonous marl and shale of the Tangier massif at the north end of the Rif mountains in Morocco. The group more closely resembles the formations of the Gibraltar area than nearby formations to the south in Morocco. The significance of the Beliounis flysch, believed to be of Cretaceous to Oligocene age, is unexplained. It may be a remnant of the cover of the Musa group although presence of other facies of the same age in the area contradicts this possibility.
Sur les assises oligocenes et ludiennes, a la limite ouest de l'Ile-de-France, entre la Seine et l'Eure
Authors: Feugueur Leon 
Published: March 2020

Abstract
Exploratory boreholes for the Breval tunnel between the Seine and Eure river valleys west of Paris encountered the Stampian (Oligocene) Fontainebleau sands, the Sannoisian (lower Oligocene) Brie limestone, grit, clays, and marls, and the Ludian (upper Eocene) marls and Champigny limestone. A complete section of the Paleogene formations of the Breval area previously was not obtainable because of the scarcity of outcrops.
Etude stratigraphique dans le Gebel Nefousa et le Gebel Garian (Tripolitaine, Libye)
Authors: Magnier Philippe 
Published: March 2020

Abstract
The cuesta forming the Gebel Nefousa and Gebel Garian in northwestern Libya exposes the discordant middle Cretaceous lying on formations ranging from Triassic to Jurassic. A study of 84 sections resulted in correlation of formations exposed in the escarpment with exploratory boreholes in other localities.
Remarques sur l'eruption du Katmai et de la Vallee des Dix-Mille-Fumees et sur le probleme des ignimbrites
Authors: Bordet Pierre , Tazieff Haroun 
Published: March 2020

Abstract
During the eruption of Mt. Katmai, June 1912, about 15 cu km of volcanic ejecta, since named "Katmai tuffs", was deposited. Recent field and laboratory work shows that this is ignimbritic dacite. The eruption can be reconstructed despite lack of direct observation. Accompanied by violent earthquakes, the ignimbrites, passing through a foamy stage before being pulverized, issued from fissures at the head of the Valley of Ten Thousand Smokes and fell in the valley like snow over about 20 km to a thickness exceeding 100 m. The ignimbrites were then covered by about 10 cu km of ash which erupted from the caldera of Mt. Katmai. The whole eruption lasted 16 hours. Thie is the only known historic case of ignimbrite formation.
Sur l'existence, en Provence, d'une phase tectonique oligocene d'origine profonde
Authors: Cornet Cecile 
Published: March 2020

Abstract
The results of a study of structures in the Triassic units of southeastern France suggest the existence of an Oligocene tectonic phase independent of those in the late Cretaceous and late Eocene. In the areas studied (Barjols, Huveaune, Grapeau, Gareoult) the structures are essentially vertical with no evidence of lateral displacement. Deep seated movement in the basement complex produced uplift and faulting. As a result of this activity, the Stampian deposits contain conglomerates with elements produced by the fragmentation of the Permian and basement complexes. The age of the orogenic movements is post-Eocene. It is clear that deformation was complete before the Vindobonian (Miocene) as evidenced by the continental deposits of that age which overlie the Triassic structures. Also the Vindobonian deposits which overlie the Jurassic and Cretaceous in other areas are at the same level as those overlying the deformed Triassic strata. Because the faulting has affected part of the Stampian deposits it could be concluded that deformation was post-Stampian. However, in the Huveaune basin where the faults limiting the Triassic structure affect the Stampian deposits, the structures are directly overlain by the Stampian, proving that the orogenic and glyptogenic phenomena were contemporaneous, and establishing a Stampian age for the tectonic phase.
Etude de quelques Viverrides (mammiferes, carnivores) du Pleistocene inferieur du Tanganyika (Afrique orientale)
Authors: Petter Germaine 
Published: March 2020

Abstract
Among the fossils recovered from Villafranchian volcanic tuffs (southeast of Lake Victoria) were species belonging to the subfamilies Herpestinae and Viverrinae: Herpestes palaeoserengetensis (Dietrich), H. palaeogracilis (Dietrich), Mungos dietrichi n. sp., Mungos sp., Viverra leakeyio n. sp. Examination of major differences between the denture structure of Herpestes and Mungos justifies the reallocation of the species originally assigned to the genus Mungos by Dietrich (1942) to the genus Herpestes. V. leakeyi is the first viverrid species reported from the Pleistocene and the first representative of the genus found on the African continent. Fossil species of Viverra are previously known only from the Vindobonian (Miocene) of Europe; two living species inhabit southeast Asia.
Sur la presence du Nummulites variolarius (Lmk) dans les diverses zones du Lutetien des bassins de Paris, de Bruxelles et du Hampshire
Authors: Blondeau A. , Curry Dennis 
Published: March 2020

Abstract
Specimens of Nummulites variolarius (Lmk) and N. laevigatus collected from the Lutetian of the Paris basin (France) and the basins of Brussels (Belgium) and Hampshire (England) permit the correlation of the basal Lutetian beds of the three areas. Fisher bed VIII (Isle of Wight) is correlated with Zone II of the Lutetian of the Paris basin and with the Bruxellian of Jodoigne. Fisher beds VII and VI are correlated with Zone I of the Paris basin Lutetian and with the base of the Bruxellian of Forest and the Flandrian mountains.
Observations sur la sedimentation argileuse du debut des temps tertiaires en Aquitaine
Authors: Klingebiel Andre 
Published: March 2020

Abstract
Examination of a section which cuts into the Dreuilhe anticline in the southern Aquitaine basin (Plantaurel) reveals a similarity between the deposits there and those in the northern part of the basin. In the core of the anticline the Maestrichtian lower red marls contain clays and red sandstone with montmorillonite and kaolinite, suggesting deposition in a vast depression lacking sufficient drainage, and in a medium rich in Ca (super ++) and Mg (super ++) . The upper red marls in the hard band of Montian lacustrine limestone with Microcodium have an analogous composition and correspond to calm tectonic and climatic conditions. Lacustrine marls with attapulgite directly underlie the transgressive Thanetian marine deposits. The passage from the Thanetian to the Sparnacian is marked by lacustrine facies, predominantly montmorillonite, and an increasing abundance of illites. The dominance of montmorillonite in a tectonically unstable area suggests that the adjacent continental mass was of low relief and was characterized by a tropical climate with alternating dry and humid seasons. The increase in kaolinite accompanying the arrival of the coarse detritus of the Ypresian is interpreted as the result of rhexistasy. The Lutetian is characterized by sandstones and limestones with associated montmorillonite, illite, and kaolinite. This phase represents the return of the sea, and the detrital nature of the deposits is a result of the uplift of the Pyrenean massifs. These phenomena are analogous to those that have been reported previously from the Paleocene series of Bordelais (northern part of the basin) suggesting a similar paleogeographic evolution for the two areas.
Le Quaternaire de la basse Somme; tentative de synthese
Authors: Agache Roger , Bourdier Franck , Petit Raymond 
Published: March 2020

Abstract
The lower valley of the Somme river (northern France) contains a succession of interglacial deposits--fluviomarine sands, littoral bands, alteration zones, tuffs, periglacial deposits, loess, and coarse fluviatile alluvium--which can be correlated with the glaciations of the French Alps. The deposits range from pre-Guenz to post-Wuerm and are identified by their flora and fauna and the remains of prehistoric industries. Cross-sections illustrate the positions of the levels discussed.
Observations sur la flore fossile du bassin de Bagnasco (Italie, prov. de Cuneo)
Authors: Gruas-Cavagnetto Carla 
Published: March 2020

Abstract
Seventy-five fossil plant species found at the top of the continental series at Bagnasco are assigned to the Chattian. A paleogeographic reconstruction determined from characteristics of the flora indicates the presence of a lake surrounded by mountains, the different plant groupings following a suitable altitude and exposure. The climate was subtropical at this time, whereas that of the lower Oligocene was tropical. This indicates a progressive change resulting in a temperate climate during the Miocene.
Etude stratigraphique et tectonique de la region du lac de Santa Croce (Alpes meridionales, province de Belluno, Italie)
Authors: Fadat Charles 
Published: March 2020

Abstract
The rocks of the Santa Croce lake region belong to the calcareous southern Alps formed from a lower Triassic sequence. The sediments show a facies change between the reefal series of the Friuli zone to the east and the deep water Belluno zone to the west. The entirely marine series may be divided into two groups: the Liassic to Oligocene beds characterized by the absence of terrigenous sediments with thick limestones; and Eocene to Oligocene terrigenous flysch deposits. The area is part of the Venetian Prealps with east to west structural orientation.
Contribution a l'etude geologique des Prealpes carniques orientales (Alpes meridionales, province d'Udine, Italie)
Authors: Cousin Michel 
Published: March 2020

Abstract
A lower Liassic to upper Miocene sedimentary sequence, west of Tagliamento, marks a transition from the reef facies of the Friuli zone to the deep water sediments of the Julian Alps. Three distinct tectonic regions can be separated by their stratigraphy: the Pradis-Forgaria autochthon of upper Cretaceous rudistid limestone and lower Eocene flysch underlying Oligocene marls and Miocene molasse; an inclined fold in the Pala-Prat-Pedroc area consisting of Norian to Paleocene fossiliferous limestones; and the Corno-Covria unit. The major tectonics are considered to be post-Pontian.
Sur un cas d'heterotrophie de Microcodium
Authors: Gottis Maurice 
Published: March 2020

Abstract
A colony of Microcodium is present in a layer of Berriasian calcareous rock to the south of the Alpilles chain in eastern Provence, France. The cavernicole nature of these organisms indicates that they are heterotrophic. If this is so then their appearance in a karst regime can not be justified. It is suggested, therefore, they should be assigned to the animal kingdom.
Nouvelles observations sur les roches vertes de l'anticlinal de Laniscat-Merleac (Cotes-du-Nord)
Authors: Nicolas Jean , Sagon Jean Paul 
Published: March 2020

Abstract
Observations on the dolerites of the northern flank of the E-W-trending Laniscat-Merleac anticline in NW France suggest that the rocks were emplaced as coulees. A well-marked granular differentiation in the rock supports this hypothesis; the coarse-grained rocks are in contact with Devonian rocks at the bottom of the coulee and the fine-grained rocks are in contact with Dinantian rocks at the top. Chemical analysis shows that there is a diminishing of Na &lt;sub&gt;2&lt;/sub&gt; O and an augmentation of the percentage of CaO ranging from the boundary of the coarse-grained rock to that of the fine-grained. Overlying the green rocks are green schists of comparable chemical composition attributed to former tuffs which were subject to regional epimetamorphism. Finally, a coarse-grained, green rock sample has been traced to the spilite family.
Le probleme structural de la Pinede de Durban-Corbieres, Languedoc (Aude)
Authors: Azema Jacques , Durand Delga Michel , Foucault Alain 
Published: March 2020

Abstract
The structural complexity of the Pinede massif, between Albas and Durban in southwest France, is due to the superposition of various tectonic phases and paleogeographic events. Partial E-W fractures were formed after the tangential Hercynian tectonics but before the Triassic and a transgressive sequence was deposited during the Triassic on a peneplaned base. This was followed by the deposition of Jurassic and Aptian series. Tectonic events occurred, accompanied by aerial erosion of the sediments between the Aptian and Senonian. Small folds and fractures occurred after the middle Miocene and erosion was contemporaneous with emergence, allowing only a slight relief. After the advance of the eastern Corbieres nappe, the remaining strata were folded toward the northwest and were dragged along as overthrust sheets. Finally, erosion cut away the autochthons and allochthons and the even surface was slightly folded and fractured.
Esquisse geologique de la region de Ceuta (Maroc)
Authors: Durand Delga Michel , Kornprobst Jacques 
Published: March 2020

Abstract
Structural units of the Ceuta region (northern Morocco) are superimposed and overlapping is evident in the individual beds. The lower Sebtides unit consists of Ceuta epimetamorphic gneiss and micaschist (Silurian-Carboniferous?); and micaceous and phyllitic schists, white quartzites and dolomites of the Beni-Mezala, Boquete des Anjera, and Federico units. The units can be separated and recognized by their varying degrees of alpine metamorphism: the Beni-Mezala displaying strong metamorphic effects and the Boquete des Anjera and Federico metamorphosed to a lesser degree. Alpine metamorphism was ended prior to the formation of the upper (Ghomaride) unit nappes. All of the units, associated with the internal Rif zone, plunge westward toward the Haouz limestone and the Jabal Musa.
Contribution a l'etude des niveaux pliocenes du Peloponnese et des marnes supra-oligocenes de Zante (Grece)
Authors: Bignot Gerard , Dercourt Jean , Le Calvez Yolande 
Published: March 2020

Abstract
Lithologic and micropaleontologic study of four sections in the Peloponnesus gives an indication of the paleoecology and paleogeography in the area during the Pliocene. The deepest facies consists of limestone marls with benthonic foraminifera (especially Buliminidae). A decrease in the salinity of the water reduced the foraminifera population to euryhaline forms in a laguno-marine facies of marls at the base of the first conglomeratic mass. The Astian facies is represented by sandy marine limestones typical of shallow, near-shore waters, and by a marl rich in shell debris with foraminifera characteristic of littoral muds and shallow, but salty water. Post-Oligocene formations on Zante island are described on the basis of their lithology and micropaleontology. The post-Oligocene foraminifera are essentially planktonic.
Radiographie de foraminiferes
Authors: Glacon Georgette 
Published: March 2020

Abstract
Radiography of the internal morphology of shells of foraminifera living on the Tunisian coast solved a number of problems by making possible examination of large numbers of individuals with an economy of time and specimens. Disadvantages encountered were structural damage resulting from X-ray flux of too great intensity, and poor visibility of internal structure in foraminifera from clay or pyritic sediments.
Revision de deux Zeliszkellinae (trilobites) des 'schistes a Calymenes' (Llandeilien) du massif armoricain
Authors: Henry Jean Louis 
Published: March 2020

Abstract
A new description of Zeliszkella torrubiae and Dalmanitina (Eodalmanitina) macrophthalma from the Armorican massif of northwestern France is based largely upon material from the Calymene shale.
Duplicatures de la crete de la Blanche pres Seyne (Basses-Alpes)
Authors: Goguel J. 
Published: March 2020

Abstract
The west side of La Blanche mountain is made up of intensely-deformed limestone and marl of Jurassic and Cretaceous age overlain by marl and the upper Eocene(?) Annot sandstone. The western part of the great Ubaye-Embrun nappe surmounts these autochthonous rocks to the east of the divide. On the northern part of the mountain, the nappe generally rests upon Jurassic but locally on Eocene beds. In the southern part, the nappe lies only upon the Annot sandstone, the uppermost formation in the autochthonous mass. The mountain is cut by a series of complex eastward-dipping thrust faults, accompanied by many lesser thrust and normal faults. The result is multiple repetition of beds of the autochthon on both a very large and a smaller scale.