bluuebunny/crossref_metadata_2025_split huggingface dataset:
Frequence et extension des glaciations a l'extremite sud-ouest des Vosges meridionales (region de Luxeuil-les-Bains)
Authors: Theobald Nicolas 
Published: June 2020

Abstract
Two series of glacial and fluvioglacial deposits can be distinguished east and northeast of Luxeuil-les-Bains (France). Deposits of the older glaciation are found on the plateaus and probably represent the Rissian. The deposits are characterized by fluvioglacial material and erratics of basic green crystalline rocks, light colored acidic rocks, and conglomerates. The younger glaciation, probably Wuermian, is represented in the valleys by moraines and terrace deposits.
Sur les 'alluvions jaunes' de la region lyonnaise
Authors: Brun Annik 
Published: June 2020

Abstract
Mineralogic and granulometric study of pebbles from the yellow alluvium in the Montuel region (Ain, France) shows that the two superimposed complexes recognized by F. Bourdier (1963) in the alluvium are nonexistent. The alluvium is a distal fluvioglacial deposit and is homogeneous throughout. Approximately 30% of the pebbles in all the samples studied show extreme wear. This is explained by the fact that rivers issuing from glaciers contain a higher percentage of suspended material, thus increasing the erosive power of the water and producing pebbles more eroded than those from rivers of other origins. The pebbles are of uniform size throughout the deposit--50 percent between 20 and 30 mm--and the heavy minerals are consistently epidote, garnet, and amphibole.
Les niveaux quaternaires marins des Alpes-Maritimes. Correlations avec les industries prehistoriques
Authors: Lumley Henri de 
Published: June 2020

Abstract
Deposits along the Maritime Alpine coast of France and Monaco reveal six shorelines between the greatest extent of the Plaisancian transgression and present sea level. During the transgression at the end of the Pliocene, the sea was 165 meters above its present position. The post-Pliocene regression marks the Tertiary-Quaternary boundary. During the eustatic Calabrian transgression, the sea reached a maximum altitude of 108 meters. During the transgression in early Pleistocene time the sea reached an altitude of 83 meters. The extensive early Pleistocene regression resulted in the formation of the caves in the Nice-Grimaldi area. The sea reached a height of only 30 meters during the second early Pleistocene transgression. The Mindel-Riss transgression is represented by littoral deposits as high as 23 meters in Monaco. A warm water molluscan fauna from littoral deposits marks the Tyrrhenian Riss-Wuerm transgression which reached a height of 12 meters. Excavations produced remains of mammals, human industries, and cryoclastic deposits.
Observations morphologiques sur les depots quaternaires de la basse vallee du Rio La Ligua (Chili)
Authors: Paskoff Roland 
Published: June 2020

Abstract
Four levels of erosion and continental deposition are observed in the lower valley of the Ligua river. The lowest level, characterized by a plane surface developed in the Ligua-Petorca interfluve and on the right bank of the Ligua, 100 meters above its present level, represents a major glaciation in the early Quaternary, perhaps a semi-arid climate with a tendency toward the tropical Villafranchian(?). Twenty-five to thirty meters above the river is the second level, a high gravel terrace deposited by waters of the retreating glacier. The middle terrace is five to seven meters above the low terrace, which is one or two meters above the present level of the river. Recent and fossil dunes are found where the Ligua approaches the Pacific. Traces of three ancient sea levels are found at 100 meters, 35 meters, and five to seven meters above present sea level. These shorelines correspond to forms recognized in western Europe and northwest Africa, the result of transgressive-regressive pulsations of the sea.
Les structures annulaires des granites des 'taourirts' en Ahaggar occidental (Sahara)
Authors: Boissonnas Jean 
Published: June 2020

Abstract
A swarm of granite massifs outcrops in the Pharusian structural basin of western Ahaggar (Algeria) not far from the major dislocation marking the eastern boundary of the basin, and separating two distinct areas. The granites appear as ring structures; two phenomena caused these features: the emplacement of several successive porphyroid granites, each one having identical composition but varying in grain size, and the formation of thick rings with relatively alkaline and leucocratic borders. Two generations of massifs are apparent and differ in their alkaline marginal facies, in their complexity, and in their geographic situation. The plutons of western Ahaggar and the subvolcanic structures of Nigeria have certain aspects of their structure in common. Nevertheless, the 'taourirts' are older and less evolved than those of Nigeria.
Sur la stratigraphie et la tectonique de l'Eubee moyenne (Grece)
Authors: Aubouin Jean , Guernet Claude 
Published: June 2020

Abstract
The stratigraphic section of Euboea island (Greece) contains Kimmeridgian limestone, a diabase-radiolarite, and a transgressive upper Cretaceous massive limestone. Cenomanian and Maestrichtian beds are recognized with flysch deposits in the Maestrichtian and younger series. The sequence is part of a southwest plunging monocline with two fault systems: a principal NW-SE and a secondary NE-SW system. The first is believed to be pre-Pliocene and the second post-Pliocene. A metamorphic zone in the northeast consists of marbles and sericite schists with some trachyandesitic volcanics.
L'age des schistes lustres de la Corse
Authors: Lapadu-Hargues Pierre , Maisonneuve Jacques 
Published: June 2020

Abstract
Results of extensive paleontologic, stratigraphic, and petrologic investigations of the schistes lustres of Corsica indicate that they are not Mesozoic or Tertiary but much older, possibly Paleozoic. The metamorphism which affected the schistes lustres is pre-Mesozoic as indicated by the fact that Hercynian granites overlie and granitize the schistes lustres. Further support is provided in that the Eocene, Jurassic, Triassic and Permian strata contain pebbles of rock originating from them. The Corsican schistes lustres may be compared with the Chataigneraie schists of Cantal or the Cevennes schists.
Tectonique de l'est du massif de la Sainte-Baume
Authors: Douville Francois , Barbier Reynold 
Published: June 2020

Abstract
Preliminary studies for the construction of the Provence canal revealed a major overthrust placing the Triassic over the Cretaceous in the region east of Sainte-Baume between Glacieres and Mazaugues, France. The area is divided into three structural zones. The northern zone consists of the Mazaugues plateau and its Jurassic substratum with no evidence of significant tectonic activity. The intermediate zone, including the Triassic and the Lias, was subjected to strong structural deformation as illustrated by two anticlines in the Muschelkalk limestones. Between the two anticlines a synclinal fold affects fossiliferous Jurassic marl. The southern zone is the Jurassic aureole at the border of the Beausset basin which consists of a rigid plate of limestone and dolomite formations. Tangential movement in a southeast-northwest direction caused the folding of the plastic beds. As the movement continued the inverse flank was sheared and the normal flank overrode the Cretaceous of the Mazaugues monocline.
Nouvelles donnees sur la structure de la serie du Buem et sur la stratigraphie de la serie de l'Oti au nord-ouest du Dahomey
Authors: Hout Gilbert , Lelong Francois 
Published: June 2020

Abstract
A study of the nature and relation of the metamorphic and sedimentary beds in northwestern Dahomey, between the Atacora boundary and Oti valley, shows that the Buem series constitutes a folded structure intermediate between the unfolded Kande series on the east and the nearly horizontal beds of the Oti series on the west. The stratigraphic facies described from Togo do not extend to the east into Dahomey. The unconformity between the Buem and Kande series is not in evidence in the area, and the degree of metamorphism and structural relations of the two series do not provide sufficient evidence for resolving the problem of their relative ages. Two hypotheses are proposed, one which supposes the faults to be normal, and the other in which they are reverse.
Le 'Lexique international de petrographie des charbons'; occasion d'un panorama et d'un bilan
Authors: Alpern Boris 
Published: June 2020

Abstract
The nomenclature used by the USA, USSR and Europe for the petrography of coals is summarized and compared on the basis of material taken from the second edition (1963) of the International Lexicon of Petrography of Coals. The lexicon, here described, is divided into two parts--nomenclature and analytic methods. Tables and short descriptions of the different sections are given, including the general terms, Stopes-Heerlen nomenclature, nomenclature of the Institute of Geology of the Moscow Academy of Sciences, the coal minerals, and the methods of petrographic analysis.
Decouverte de la zone a Dictyonema flabelliforme Eichwald dans l'Ordovicien inferieur du Sahara algerien septentrional
Authors: Blain Marie 
Published: June 2020

Abstract
Two cores taken from drill holes SSE of Laghouat, northern Algerian Sahara, yielded a rich graptolite fauna, primarily species of Dictyonema. Study of these fossils resulted in the recognition of the middle and upper parts of the Dictyonema flabelliforme zone in the lower Ordovician. A brief description of the lithostratigraphy of the two cores is given. The following forms are described: Dictyonema flabelliforme cf. flabelliforme, D. flabelliforme aff. anglicum var. 1 (nov.), D. flabelliforme cf. anglicum var. 2, D. flabelliforme aff. bryograptoides, Anisograptus? or Adelograptus? sp., Bryograptus sp. These graptolites establish the existence of the lower Tremadocian gamma I zone in the Sahara.
La tectonique de la Mediterranee moyenne et les seismes
Authors: Aubouin Jean 
Published: June 2020

Abstract
Three superimposed structures can be distinguished in the central Mediterranean Alpine chains: tangential structures--folds and faults--of the geosynclinal period (Cretaceous); compression structures of the late geosynclinal period (Tertiary); and extension structures of the postgeosynclinal period (late Miocene). The Recent and sub-Recent volcanism and seismic shocks in the area are related to the structures of the last period. This seismicity does not represent the continuing formation of the Alpine chain but rather its continuing deformation. The southern part of the Dinarides seems to be a NNE-SSW extension of the vertical and horizontal movements along the local fracture zones.
Sur Conulus subrotundus Mantell du synclinal d'Eygaliers (Drome)
Authors: Letourneur Jean 
Published: June 2020

Abstract
Sea urchins that have been known more than a century in the Eygaliers valley are Conulus subrotundus, characteristic of the Saumurian B (Turonian: upper Cretaceous) in the Touraine region of southwestern France.
Sur le metamorphisme dans la zone pelagonienne orientale (region de l'Olympe, Grece)
Authors: Godfriaux Ivan 
Published: June 2020

Abstract
The Mount Olympus massif of Triassic to Eocene limestone and dolomite surmounted by Eocene flysch, crops out in a fenster in the Pelagonian nappe of undated granite, migmatite, gneiss, augen gneiss, amphibolite, and mica schist overlain by Triassic to Jurassic limestone and shale, Jurassic ophiolite, Cretaceous limestone, and Maestrichtian (upper Cretaceous) flysch. Two episodes of metamorphism are present: an older epizonal to mesozonal one affecting all formations below the Jurassic ophiolite, and followed by migmatization; and a younger metamorphism of Alpine age and mesozonal to catazonal intensity affecting all formations below the Maestrichtian.
Discrimination de deux formes infraspecifiques chez une Rhynchonelle du Bathonien inferieur de Bou-Rached (NE du moyen-Atlas marocain)
Authors: Rousselle Lucienne , Demarez Jean Pierre 
Published: June 2020

Abstract
Statistical study of brachiopods from the lower Bathonian (middle Jurassic) marl-limestone series of the northeastern part of the middle Atlas mountains of Morocco, dated by ammonites, shows that two forms of a species tentatively assigned to Rhynchonella aff.? royeriana oranensis are present. One occurs in a bed exceptionally rich in brachiopods near Douar Maananne. The other occurs in a bed equally rich in brachiopods near Bou Rached. The two beds probably are contemporaneous, and the two forms represent local populations adapted to slightly different local conditions. Final evaluation must await revision of R. royeriana oranensis of the Algerian Bathonian.
Mode de mise en place des protrusions de l'Atakor (Hoggar)
Authors: Girod Michel 
Published: June 2020

Abstract
The Atakor massif of the central Hoggar region of the Sahara is a complex of late Tertiary-Quaternary trachyte, phonolite, basalt, and basanite occurring chiefly as protrusions resembling eroded volcanic necks, and resting upon a basement of Suggarian (Precambrian) formations. Four types of protrusions are recognized among the nearly four hundred in the area: those with accompanying lava resting upon a bed of pyroclastics, circular or elliptical in plan; those in which the lava took the form of an oriented coulee, also resting on pyroclastics; cupola-shaped masses with some pyroclastics and little lava; and those without lava. Factors governing the form of individual protrusions include chemical composition, temperature of emission, and content of dissolved gases, as well as peculiarities of shape of the vent.
Microfaunes cenomaniennes et santoniennes dans le 'calcaire des canons' (vallee d'Aspe, Sainte-Engrace, Basses-Pyrenees)
Authors: Cuvillier Jean , Henry Jacques , Ribis Richard , Villanova Michel 
Published: June 2020

Abstract
The upper Cretaceous 'canyon' limestone or Hippurites limestone of the Aspe river valley in the Basses-Pyrenees of southwestern France is transgressive upon Paleozoic formations of the western part of the axial zone of the Pyrenees. The limestone is locally underlain by a thin bed of quartz conglomerate, quartzite, and shale of unknown age. The basal part of the limestone, generally sandy or conglomeratic and with local beds of dolomite, is dated as Cenomanian (basal upper Cretaceous) by the foraminifer Praealveolina cretacea cf. brevis. The top is dated as upper Santonian (uppermost lower Senonian: upper Cretaceous) by the association Lacazina aff. elongata, Orbitoides tissoti var. densa, Nummofallotia cretacea, and large miliolids.
Deux nouvelles especes du genre Adelograptus (Graptolites) dans l'Ordovicien inferieur du Sahara algerien
Authors: Legrand Philippe 
Published: June 2020

Abstract
Two new graptolite species, Adelograptus bagueli n. sp. and Adelograptus messaoudi n. sp. occur in the lower Ordovician of the Hassi Messaoud region of the Algerian Sahara. Details of rhabdosome development are shown unusually well, and relationships of the genus to Bryograptus are described.
Les bassins sedimentaires du nord de la Corse; essai de synthese stratigraphique et apercu tectonique
Authors: Delcey Roland , Limasset Jean Claude , Routhier Pierre 
Published: June 2020

Abstract
The Saint Florent, Balagne, and Francardo basins of northern Corsica, surrounded by Paleozoic granitic and metamorphic rocks, are occupied by Permian to Triassic arkosic clastics and rhyolite overlain by dolomitic limestones, Jurassic limestones and spilite pillow lavas, Cretaceous flysch and overlying Globotrunca marly and sandy limestones, Eocene arkosic clastics, Nummulite limestone, and flysch. Although the paleogeographic history of the three basins differs in details, it was essentially the same in major features. The tectonic history, however, differed considerably depending on the structural nature of the underlying basement rocks of the basins. Presence of nappes of distant origin is suspected from relationships of the Cretaceous flysch and the Paleozoic schists east of Francardo.
Des oolites volcaniques dans le massif du Mont-Dore
Authors: Brousse Robert 
Published: June 2020

Abstract
A bed of late Tertiary volcanic oolitic concretions occurs at the top of a pumice flow intercalated between two basalt flows in the south flank of the Mont Dore volcanic massif of south-central France. The oolites are ellipsoidal to pear-shaped and have a mean density of only 0.11 as contrasted with 0.5 for pumice. The cores are aggregates of pumice, glass, feldspar, and augite fragments with five to ten concentric shells of the same materials. The oolites are not of aqueous environment. Their positions in the bed indicate they were air-borne and some are radially cracked from impact. The original shattered materials were thrown to great height by a violent eruption, and the oolites were formed by progressive aggregation of the fine fragments in falling back to earth in a manner analogous to the formation of hail.
Revision des Madreporaires de forme cyclolitoide des couches de Gosau de la collection F. Quenstedt
Authors: Beauvais Marcel 
Published: June 2020

Abstract
The recent study of the cyclolitoid Madreporaria from Gosau, Austria, in the Quenstedt collection at the University of Tuebingen resulted in assigning most of the species to the genus Fungia Lmk. The remainder were reclassified among known species of other genera and a new genus, Plesiocunnolites.
Procymatoceras mazardrikense nov. sp.: nautile jurassique du Baluchistan
Authors: Sarkar Satya S. 
Published: June 2020

Abstract
The nautiloid from the Polyphemus limestone of Mazar Drik in Baluchistan identified by Noetling as Nautilus intumescens Waagen differs in many respects from Waagen's holotype, and from all known nautiloids of India and Pakistan. It is a new species, for which the name Procymatoceras mazardrikense n. sp. is given.
Sur la presence de trois especes de Thecideidae (Brachiopodes) en Roumanie
Authors: Pajaud Daniel , Patrulius Dan 
Published: June 2020

Abstract
The known species of Thecideidae brachiopods in eastern Europe are few, three each in Czechoslovakia and the USSR. The recent discovery of three species in Romania thus is an important contribution. Vermiculothecidea vermicularis Schlotheim occurs in the Maestrichtian (upper Cretaceous) of the southeastern Carpathian mountains. Davidsonella (?) tithonica n. sp. occurs in the Tithonian (upper Jurassic) of the Sinaa area on the headwaters of the Prahova river in the southeastern Carpathians. Agerinella lyrata n. sp. occurs in the upper Oxfordian (upper Jurassic) at the La Adam grotto in the Visterna valley.
Essai de reclassification des Olividae Ancillinae (gastropodes)
Authors: Chavan Andre 
Published: June 2020

Abstract
Review of the gastropod subfamily Ancillinae (Senonian-Recent) shows that certain shell features are more important characteristics for classification than the form of the shell itself. The study includes discussion of the genera Ancilla, Ancillus, Ancellina, Gracilancilla, Amalda, Olivula, and Eburna and their subgenera. A dichotomous key is given for the classification of the Ancillinae.
Contribution a l'etude geologique de la region de l'Albenza (Alpes meridionales, province de Bergame, Italie)
Authors: Blanchet Rene 
Published: June 2020

Abstract
The stratigraphic succession in Lombardy, ranging from the early Jurassic through the Paleocene, exhibits two types of sedimentation; pelagic in the Jurassic and lower Cretaceous, and detrital sedimentation beginning with Aptian pelites and developing to its greatest extent in the flysch facies between the upper Cenomanian and upper Campanian. Similar terrigenous flysch deposits in the Eocene on the west bank of Garda lake indicate that the emerged area furnishing the sediments must have been west of Lombardy.
Indice de sulfures sedimentaires de Taboca (municipe de Crato, etat du Ceara, Bresil)
Authors: Cassedanne Jacques 
Published: June 2020

Abstract
Sedimentary rocks in the southwestern part of Ceara state, Brazil, contain lead, zinc and iron sulfides. The mineralized zone is in unfaulted horizontal beds of lower Cretaceous age. The area of sedimentary sulfur corresponds to a shallow Precambrian basin which exhibits gaps in sedimentation, thinning, and rapid lateral facies variations. The mineralized bed is composed of bituminous shale with limestone pebbles and synsedimentary breccia. It corresponds to a short period of unstable sedimentation intercalated with a series of argillaceous sands, marls and shales.
Les roches et leur equilibre dans la structure du globe
Authors: Machairas Georges 
Published: June 2020

Abstract
The rocks of the earth's crust and upper mantle belong to three categories. The first includes those rocks that have achieved complete equilibrium. Rocks of the second category represent transitory equilibrium, their formation varying relative to the chemical elements available and the physical and dynamic conditions. Rocks of the third category consist of limestones, shales, and other detrital sediments. Their composition is completely controlled by that of the source rock. The global discontinuities including that at the surface, and the Mohorovicic and Lehmann-Gutenberg discontinuities are briefly discussed in terms of differences in densities of rocks of the various categories.
Les formations coralliennes de Saint-Germain-de-Joux (Ain)
Authors: Enay R. 
Published: June 2020

Abstract
Coralline formations in the Saint-Germain-de-Joux area (France) are dated as Kimmeridgian (upper Jurassic) based on their position in relation to ammonite-bearing horizons. Only the lower formation is truly coralline, characterized by the juxtaposition of columnar coral build-ups and limestone detritus. The columnar accumulations reach a height of 50-60 meters and never exceed a few meters in diameter. They are composed of branching corals grouped in 'bunches' and toward the top contain massive colonies. The pericoralline sediments exhibit no bedding and constitute the major part of the formation. An interval of compact limestone and algal nodules separates the lower and upper formations. The upper formation contains no coral structures and is composed almost entirely of pseudo-oolitic limestones, more well-bedded than the lower formation. The coralline formations resemble the Valfin reef but surpass them in size, completeness and preservation. The parallel and linear disposition of these chronologically equivalent zones suggests development in a barrier reef or channel.
Le Sannoisien de Sannois (Seine-et-Oise) dans le cadre du bassin de Paris et sa signification stratigraphique
Authors: Cavelier Claude 
Published: June 2020

Abstract
The Sannoisian (upper Oligocene), exposed only in its upper part at the type section, Sannois, France, is described from paleontologic and lithologic studies at Argenteuil and Cormeilles. Foraminifera and ostracods, less common in the Romainville green shale than in the Sannois limestone, along with previously studied mollusks, indicate that the fauna of the Argenteuil blue marls and the Pantin white marls exhibit an affinity with upper Eocene faunas, whereas the Romainville green shale and the Sannois limestone cannot be distinguished paleontologically from the Stampian. It is concluded from this that the Sannoisian should be suppressed and the type section retained as the type of the Sannoisian facies.
La succession stratigraphique des mammiferes dans l'Eocene du bassin de Paris
Authors: Rat Pierre 
Published: June 2020

Abstract
Reconstruction of the successive mammalian faunas in the Paris basin results in delineation of a stratigraphic sequence that begins with the Cernay-les-Reins conglomerate, containing the oldest Eocene fauna (composed of multituberculate forms) in France. The series continues with the Sparnacian Meudon conglomerate with Coryphodon and Pachaena, the upper Cuisian sands with Lophiodon larteti and the first expansion of artiodactyls, and the Montmartre gypsum in which the first paleotheres appeared. Isolated fossil occurrences give only an indication of other phases--the Sparnacian Soissonnais lignites and the Bartonian Saint-Ouen limestone.