bluuebunny/crossref_metadata_2025_split huggingface dataset:
Carte structurale du toit de la craie dans la region parisienne (Seine, Seine-et-Oise, Seine-et-Marne)
Authors: Bricon Claude , Desprez Noel , Diffre Philippe , Megnien Claude , Rampon Gilbert , Turland Michel 
Published: June 2020

Abstract
The first draft of a structure map showing the top of the Chalk formation (upper Cretaceous) in the Paris region is based on 894 cores drilled in the area. The anticlinal and synclinal axes are modified, particularly at the east and at the southeast where domes and shallow basins are present. On the basis of the data, two structural regions are distinguished. To the west, in Seine-et-Oise, there are two anticlinal and synclinal zones paralleling the Armorican direction. The second zone, to the east, in Seine-et-Marne, contains monoclinal structures dipping to the NW. Structures below the Tertiary, among which are anticlines, synclines, domes, and basins, are briefly described in relation to the mapped Chalk-Tertiary boundary.
Analyse mineralogique des sediments arenaces de l'Oxfordien superieur, de l'Albien et d'une formation intermediare dans la region de Lisieux (Calvados)
Authors: Juignet P. 
Published: June 2020

Abstract
A heavy mineral analysis of sands reveals differences between Sequanian (upper Jurassic) and Albian (lower Cretaceous) formations of the Lisieux area, France. The heavy mineral suite in the horizontal well-sorted Sequanian Glos sands shows a predominance of tourmaline, zircon, rutile, and brookite. The Albian green sands differ from the Glos sands by the presence of glauconite, oblique stratification, and poor sorting at the base. A thin sandy bed intermediate between the Albian and Sequanian shows heavy mineral affinities for the Albian suite.
Observations sur le genre Distichoplax (algues melobesiees)
Authors: Denizot Michel , Massieux M. 
Published: June 2020

Abstract
Thin sections from Sparnacian (upper Paleocene) limestone between Limoux and Alet-les-Bains have revealed the lamellar character of the thallus of Distichoplax biserialis. Transverse sections parallel to the cell rows reveal two symmetrical cell layers in the thallus; the quadrilateral form of the principal cells; and the alternation of cortical cells, principal cells and trichocytes. In sections parallel to the thallus large cells followed by small square or polygonal cells are observed. The thallus of D. biserialis is compared with those of living melobesids. The form and dimension of the cells in D. biserialis distinguish it from the Recent forms.
Essai d'explication de la sedimentation cyclique, cyclothemes et megacyclothemes
Authors: Deleau Paul 
Published: June 2020

Abstract
The Namurian-lower Westphalian coal basin at Abadla, southwest of Colomb-Bechar, Algeria, is chosen as an example of a sedimentary basin formed on a great epicontinental platform. The coal epoch was characterized by heavy precipitation suggested by the great amount of water needed to transport sedimentary material over long distances and wide areas. Two continental flexures are recognized--one between the open sea and the sedimentation platform, the other between the platform and the continental beds--and are the determining factor in the cyclical distribution of the sediments. In large basins, as Abadla, where there are thin beds, the compaction of the coal does not occur with the cyclical sedimentation.
Madreporaires du Carbonifere des Hautes-Corbieres
Authors: Semenoff-Tian-Chansky Pierre , Ovtracht Andre 
Published: June 2020

Abstract
A small fauna of madrepores has been discovered in limestone lentils in conglomerates in the Culm (Carboniferous) deposits of the Mouthoumet massif (southern France). The discovery suggests that the area was subjected to some uplift during the terminal Visean stage and prior to the major Hercynian movements that resulted in emergence of the mountains.
Morphologie de l'ouverture buccale d'un cephalopode microconche; Saynoceras verrucosum (d'Orb.)
Authors: Thieuloy Jean Pierre 
Published: June 2020

Abstract
The morphology of the buccal aperture of the microconch cephalopod Saynoceras verrucosum is described in detail with particular reference to the biologic significance of microconchs.
Representants des Bereselleae (algues calcaires) dans le Carbonifere de Turquie et description d'un nouveau genre, Goksuella n. g
Authors: Guevenc T. 
Published: June 2020

Abstract
The new genus Goksuella, five new species, and a new variety of the Bereselleae (dasycladacean algae) are described from the Carboniferous of the western Taurus mountains of Turkey. The new species are Beresella bilguetayae, Dvinella cuvillieri, Samarella massieuxae, Goksuella maslovi, and G. oblica. The new variety Beresella erecta turkiana is also described. The Bereselleae have previously been reported only from the USSR.
Essai d'interpretation de paleomilieux grace a la methode de distribution des formes zoariales chez les bryozoaires
Authors: Labracherie Monique , Prud'homme Janine 
Published: June 2020

Abstract
Curves established in calculating the percentage of different zoarial types of bryozoans found in the Eocene sedimentary beds of a core drilled 25 km north of Bordeaux (France) were analyzed. The observed variations in distribution relative to lithology permit distinction of several groups and, with the help of comparisons with present-day faunas, interpretation of the different faunal environments which existed during the course of sedimentation.
Sur l'evolution du genre Haplocyon Schlosser (Carnivora)
Authors: Bonis Louis de 
Published: June 2020

Abstract
Two different lines, each forming a subgenus, can be distinguished in middle and upper Oligocene carnivores belonging to the genus Haplocyon. The new subgenus Parhaplocyon contains a single species, P. elegans n. sp.; it persists throughout the Stampian to the Aquitanian. The subgenus Haplocyon evolved toward acquisition of a more prominent dentition and was ancestral to the genus Haplocyonides. This group of carnivores constitutes the new subfamily Haplocyoninae.
Structure de quelques polypiers phacelodes triasiques
Authors: Cuif Jean Pierre 
Published: June 2020

Abstract
The Triassic coral genus Thecosmilia includes different forms. The structure of the radial elements as well as the position of the wall and endotheca are fundamental criteria for distinguishing these forms. On the basis of these elements, three new genera are described: Volzeia, Distichophyllum, Retiophyllia. This study shows that the Triassic fauna is more diversified than was originally apparent.
Etude micropaleontologique du Viseen superieur de Djerada (Maroc)
Authors: Chanton Nicole 
Published: June 2020

Abstract
A paleontologic study of the microfauna of the so-called Carboniferous limestone along the margin of the mining district in the Djerada basin (Morocco) confirmed the upper Visean (Mississippian) age previously assigned on the basis of the macrofauna. Three families of foraminifera are particularly important: Archaediscidae, Endothyridae, and Tetrataxidae.
Etude geologique des massifs calcaires du Pied-du-Poul et de Perillos (Aude, Pyrenees-Orientales)
Authors: Bertrand-Sarfati Janine 
Published: June 2020

Abstract
Micropaleontologic data obtained during a study of the stratigraphy of the Perillos and Pied-du-Poul massifs allow precise dating of the limestone series of the southern Corbieres mountains (France). The series comprises three members: bedded Bajocian (Jurassic) limestones; black Bathonian (Jurassic) dolomites with limestone lenses; and a thick monotonous sequence of white limestone with gray or sometimes blue weathering crusts, representing a continuous series ranging from Jurassic to lower Cretaceous. The series proves the presence of an almost continuous shallow sea. Simple tectonic structures are present--overthrusts of small extent indicating a southeast-northwest thrust direction, and vertical faults.
Les laves recentes de l'Etna
Authors: Tanguy Jean Claude 
Published: June 2020

Abstract
The recent lavas of Etna are tephritic trachybasalts always showing the same mineral composition: olivine phenocrysts; phenocrysts and microlites of strongly zoned calcic plagioclase, slightly titaniferous and aluminous augite, and titanomagnetite; [and] interstitial sanidine and nepheline accompanied by a minimum amount of sodalite. These minerals have been studied by chemical analysis, as well as by optical and x-ray diffraction methods. Analyses of plagioclase, augite, and olivine have again been carried out and compared with those already published. Sanidine, nepheline, and sodalite which, although implicit in the total chemical analysis of the rock, had never been explicitly described, have been identified by selective staining, microchemical tests, and x-ray diffraction. This has been followed by chemical and modal analysis of the most representative lavas. An average type has been defined and its place in the classification of volcanic rocks discussed.
Presence d'une fosse d'effondrement volcano-tectonique dans la partie centrale du massif du Cantal
Authors: Vatin-Perignon Nicole , Michel Robert 
Published: June 2020

Abstract
A geophysical program of electric logging indicates the presence, under the Cantal volcanic massif (France), of a zone of volcano-tectonic trenching surrounding the principal centers of eruption. The electric logs contribute useful information on the location, form, and structures of this trench, and confirm the general homogeneity of the volcanic material, probably clastic, filling the trench.
Sur l'age des derniers cataclysmes volcano-tectoniques dans la region centrale de l'arc des Nouvelles-Hebrides
Authors: Geze Bernard 
Published: June 2020

Abstract
Study of Recent volcanism in the islands of the central region of the New Hebrides arc and the Shepherd group, including carbon-14 dating, confirms a succession of cataclysms within historic time. Submarine volcanoes along the coasts are still very active.
Sur les facies du Cretace inferieur aux environs de Chambery (Savoie)
Authors: Guillaume S. 
Published: June 2020

Abstract
With the help of microstratigraphic analyses, a study was made of the transition in the Neocomian (lower Cretaceous) from the Jura-type facies to the Subalpine facies on Outheran mountain south of Chambery (Savoie, French Alps). The lower Cretaceous boundary of the Jura-type and Subalpine facies has a different direction from the present structure. The transition zone between the platform and the deep basin shifted from southeast to northwest during the Valanginian and Hauterivian.
Le Lias et le Bajocien de La Javie (Basses-Alpes)
Authors: Mouterde R. , Kerrien Yves , Labourguigne Jean , Manivit Jacques 
Published: June 2020

Abstract
In the La Javie area, Basses-Alpes, France, there is a thick, fossiliferous sequence of Liassic sediments; the Aalenian is especially well represented. The Domerian and Toarcian thicken spectacularly northwards from Digne; such thickening is also characteristic of the lower Liassic between Digne and the Blayeul crest. To the east, the beds around the Beaujeu dome are not as thick, and show marked schistosity from tectonic influences.
Observations nouvelles sur le Tithonique terminal et le Berriasien de la region de Luc-en-Diois (Drome)
Authors: Donze P. , Le Hegarat G. 
Published: June 2020

Abstract
The upper Tithonian-Berriasian (uppermost Jurassic-lowermost Cretaceous) section of the Luc-en-Diois region (Drome, French Prealps) includes two conglomeratic sequences separated by marly limestones. Similar sections are known from several surrounding localities. The lower conglomerate at Luc-en-Diois is correlated with the upper Tithonian main breccia of Chomerac in the Ardeche region. The marly limestone contains microfauna of lower Berriasian ostracods. The upper conglomerate, with its associated red detrital limestone, may similarly be equivalent to the upper conglomerate of the Ardeche section; it is probably uppermost Berriasian, marking the Berriasian-Valanginian boundary.
Etude geochimique d'une sequence des 'terres noires'; application au probleme de l'ecologie de spongiaires constructeurs
Authors: Artru Philippe , Gauthier J. 
Published: June 2020

Abstract
The 'black earths' of Diois (French Prealps) and the Laragne region are a monotonous succession of argillaceous and marly beds of late Bajocian to early Oxfordian age. They contain platy limestones and associated lentils of abundant sponge spicules, apparently bioherms, especially near the middle of the sequence. Variable but high sulfur content, constant high boron content, and constant contents of Cr, V, Ba, Sr, and Ga in these rocks indicate euxinic conditions of deposition. The platy limestones represent influxes of colder, more oxygenated water, brought into the deep part of the basin by intermittent currents, making possible the development of the sponge bioherms under semi-euxinic conditions.
Sur l'age (Callovien inferieur) du niveau repere median des 'terres noires' du Diois et de la region de Laragne (chaines subalpines)
Authors: Artru Philippe , Elmi Serge , Mangold Charles 
Published: June 2020

Abstract
The 'middle marker horizon' of the 'black earths,' southeastern France, belongs to the Macrocephalites macrocephalus zone of earliest Callovian (Jurassic) age. Macrocephalites (subgenera Macrocephalites, Kamptokephalites, and Dolikephalites) and Bullatimorphites bullatus (d'Orb.) characterize the horizon. No elements younger than the kamptus subzone were collected; part or all of the macrocephalus subzone may be present. Bullatimorphites, although typical of the Bathonian, has been collected from lower Callovian sections at several localities in France.
A propos de l'age des molasses de Tanaron (Basses-Alpes); la redecouverte du gisement de cerithes et ses consequences structurales
Authors: Beaudoin Bernard , Cavelier Claude , Haccard Daniel , Lanteaume Marcel , Perrin Michel 
Published: June 2020

Abstract
The well-known Cerithium deposit of Tanaron (Basses-Alpes, France) has been rediscovered. Its Helvetian-Tortonian (Miocene) age is in perfect agreement with its position above the typical marine molasse of the Burdigalian and below the Valensole conglomerates. This rediscovery supports the monoclinal, as opposed to the synclinal, interpretation of the relations between the red molasse and the Valensole conglomerates.
Sur l'existence de phenomenes de ravinement, de condensation et de remaniement au sein des formations secondaires de la Sierra de Crevillente (prov. d'Alicante, Espagne)
Authors: Azema Jacques , Sornay Jacques 
Published: June 2020

Abstract
The stratigraphic study of the southern flank of the Sierra de Crevillente (Alicante province, Spain) has produced evidence of erosion and reworking phenomena in the midst of Mesozoic formations. These local features indicate the existence of a shoal zone swept by currents. They compare with those known near Antequera and Ronda, farther west in the southern Subbetic zone.
Le diapirisme des terrains triasiques au Secondaire et au Tertiaire dans le Subbetique du NE de la province de Grenade (Espagne meridionale)
Authors: Foucault Alain 
Published: June 2020

Abstract
The study of certain outcrops in the Subbetic zone indicates diapirism of Triassic strata beginning as early as the Turonian (upper Cretaceous). These movements of the evaporitic strata of the Triassic have had an important influence on the tectonic development of the western Mediterranean. Although deformation of the diapirs by tangential tectonic activity has made them difficult to recognize, they occur on both sides of the western Mediterranean and may be much more widespread than currently believed.
L'evolution sedimentaire et tectonique du bassin hercynien de Moravie-Haute-Silesie
Authors: Unrug Rafal 
Published: June 2020

Abstract
The Moravia-Upper Silesia basin of southern Poland and northern Czechoslovakia is a good example of geosynclinal development. Geosynclinal sedimentation beginning in the Devonian passed gradually without tectonic break into late geosynclinal coal-producing sedimentation. After Asturian (upper Carboniferous) folding, upper Carboniferous and lower Permian sediments were laid down. The migration of subsidence and molasse-type sediments within the geosynclinal system is clearly shown.
Analyse stratigraphique de la serie bathonien-oxfordien du Chatillonnais
Authors: Thierry Jacques 
Published: June 2020

Abstract
Detailed descriptions are given of several sections ranging in age from Bathonian to Oxfordian (middle and upper Jurassic) in the Chatillon-sur-Seine region (southeastern Paris basin, France). Each zone is well defined by fossils, especially ammonites. The facies variations and breaks in sedimentation are summarized.
Les calcaires concretionnes de la limite oligocene-miocene des environs de Saint-Pourcain-sur-Sioule (Limagne d'Allier); role des algues dans leur edification, analogie avec les stromatolites et rapports avec la sedimentation
Authors: Bertrand-Sarfati Janine , Freytet Pierre , Plaziat Jean Claude 
Published: June 2020

Abstract
Various concretionary limestones near the Oligocene-Miocene boundary in the French Central Massif are built predominantly by the activity of cyanophycean algae. The structure, which macroscopically appears very diverse, is microscopically uniform, comparable to certain ancient and modern stromatolites.
Etude micropaleontologique de l'Albien, du Cenomanien et du Turonien d'Audignon (Landes)
Authors: Saint-Marc Pierre 
Published: June 2020

Abstract
The Audignon anticline is one of the most studied folds of Aquitaine [southwestern France]. Up to now the stratigraphy has commonly been based on the lithology and macrofauna. The study of microfaunas and microfacies has contributed to the establishment and refinement of the stratigraphic series of the Albian, Cenomanian, and Turonian [Cretaceous], and to their correlation with those of Roquefort-des-Landes.
Contribution a l'etude des terrasses rhodaniennes; les surfaces situees au NW de Villeneuve-les-Avignon (Gard)
Authors: Arnal Henri 
Published: June 2020

Abstract
On the basis of geomorphic criteria, five levels corresponding to Quaternary glaciations can be distinguished in the terraces along the Rhone in southern France. From highest to lowest, they are: the Donau, Guenz (two levels), Mindel, Riss (two levels), and Wuerm. Each level is described in detail.
Biostratigraphie et paleoecologie des peuplements a huitres et des formations saumatres du Santonien provencal
Authors: Fabre-Taxy Suzanne , Philip Jean 
Published: June 2020

Abstract
Detailed biostratigraphic studies of oyster faunas and brackish formations from the Santonian (upper Cretaceous) of Provence (southern France) show lateral and vertical variations of ecologic zones resulting in recurrent faunas. The basal beds correspond to a brackish near-deltaic facies, while a marine transgression is represented in the major part of the sequence. The Santonian is terminated by a second brackish sequence. These three zones pass laterally and vertically into fresh-water formations of the Valdonnian or into deltaic facies poor in fossils.
Note preliminaire sur le Tertiaire superieur du Chili centre-nord
Authors: Herm Dietrich , Paskoff Roland 
Published: June 2020

Abstract
Research on the faunal evolution of the marine Neogene in north-central Chile (D. H.) has shown the existence of an important sedimentary hiatus between the upper Miocene and the upper Pliocene. Other work carried out independently (R. P.) shows that the lower Pliocene corresponds exactly to a period of great activity of exogenetic forces on the continent related to very low sea level. Two basic facts appear in the light of these observations: on the one hand the existence of continental deposits of the lower Pliocene in the bottoms of present valleys, on the other hand the necessity of adopting, to account for Plio-Quaternary events, a 'long' chronology that refers to the beginning of the Pliocene the great dislocations that have given the Andean system its mountainous proportions.
Le Neocomien de la region du Bas-Verdon
Authors: Belleville Jean Michel , Chevalier Jean 
Published: June 2020

Abstract
The Neocomian (lower Cretaceous) of the lower Verdon region (Basses-Alpes, southern France) represents a transition facies between deep-water marine deposits to the northwest and continental deposits to the southeast. The facies change between the marly limestone series of the flexure zone to the west and the white limestone series of the platform to the southeast can be traced. Fluctuations of the ancient shoreline resulted in alternations of bioclastic marine limestones and lacustrine sediments.
Paleogeographie, orogenese, metamorphisme et magmatisme des zones internes des Hellenides en Macedoine (Grece); vue d'ensemble
Authors: Mercier Jacques 
Published: June 2020

Abstract
Since the end of major Hercynian disturbances in the upper Paleozoic, the inner Hellenide zones, including the Peonia and Almopia troughs and the Paikon and Pelagonian ridges, have been affected by several periods of complex orogenic activity among which were four phases of tangential movements: Portlandian or terminal early Cretaceous, terminal Cretaceous to lower-middle Eocene, latest Priabonian, and post-lower Oligocene. Vertical movements took place before the last tangential phases, during Kimmeridgian-Portlandian and Turonian-Campanian time. Since the Hercynian and pre-Hercynian periods of metamorphism the inner Hellenides have been affected by dynamic metamorphism of post-Jurassic-pre-Albian-Aptian and post-Maestrichtian-pre-lower Oligocene age; post-middle-upper Eocene dynamic metamorphism had localized effects near structural contacts. Igneous activity associated with the metamorphism and orogenic movements was initially (Jurassic) ophiolitic; two phases of synorogenic (upper Jurassic-early Cretaceous and late Cretaceous to lower-middle Eocene) granitic activity followed and were in turn succeeded by three phases of postorogenic (Plio-Quaternary) andesitic, granitic-granodioritic, and basaltic activity.
Grandes structures de la mer Ligure, leur evolution et leurs relations avec les chaines continentales
Authors: Glangeaud Louis , Alinat Jean , Polveche J. , Guillaume Andre , Leenhardt Olivier 
Published: June 2020

Abstract
Data obtained during the Geomede I cruise and other oceanographic surveys have made it possible to define the major structural units of the Ligurian sea. They are thought to be related to continental structures of Corsica, the French-Italian continental margin, and the Alps. Significant relationships therefore exist between the Alpine continental structures and the submarine paleogeographic and tectonic units of the Mediterranean.
La sedimentation argileuse actuelle en Mediterranee nord-occidentale; donnees preliminaires sur la diagenese superficielle
Authors: Chamley Herve 
Published: June 2020

Abstract
Clay mineralogy, dominance of illite, subordinate chlorite and kaolinite, landward increase in detrital montmorillonite, seaward increase in volcanic montmorillonite, homogeneous geographic and vertical distributions
Donnees stratigraphiques sur la serie renversee et charriee du Djebel bou Sba et etude de son cadre structural (region de Guelma, Constantinois, Algerie)
Authors: Vila Jean Marie , Busnardo Robert , Devries Andre , Magne Jean , Sigal Jacques 
Published: June 2020

Abstract
Overturned Barremian (Cretaceous)-Paleocene series thrust over Barremian-Senonian series in turn thrust over neritic Cretaceous autochthon
Les depots recents du canyon de Cap-Breton
Authors: Nesteroff Wladimir D. , Duplaix Solange , Sauvage Jacqueline , Lancelot Yves , Melieres Frederic , Vincent Edith 
Published: June 2020

Abstract
Turbidites, sedimentary structures, bottom morphology, sediment composition, mineralogy, palynology, foraminiferal fauna, Holocene (5000 yr B.P.), France
Le calcaire de Tonnerre et les formations adjacentes du Jurassique superieur de l'Yonne; observations stratigraphiques et paleontologiques
Authors: Loreau Jean Paul , Tintant Henri 
Published: June 2020

Abstract
Oxfordian-Kimmeridgian biostratigraphy, ammonite fauna, systematic descriptions, new species, Oxfordian-Kimmeridgian boundary, paleogeography, France