bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sur l'existence de formes differentes de Schizaster en Europe et en Afrique
Authors: Zoeke Marga E. 
Published: June 2020

Abstract
The echinoids of the genus Schizaster are classed into African and European groups on the basis of certain characteristics of form, biometric measurements, and structure of the plates. Each group can be further subdivided on the basis of morphology. The possibility of local exchange between the major provinces is not excluded.
Phenomenes epigeniques dans les calcaires toarciens de Saint-Antonin (Aveyron)
Authors: Rech-Frollo Marguerite 
Published: June 2020

Abstract
Nodules in Toarcian (Jurassic) limestones at Saint-Antonin in the valley of the Aveyron, southwestern Quercy, France, which resemble oolites but lack the concentric structure, are described and attributed to deposition of calcite around a nucleus in one single stage. Petrographic study of the limestones also reveals that dolomitization, phosphatization, and silicification have taken place simultaneously, probably as a result of biochemical processes.
Les deformations d'age alpin du cristallin du Pelvoux a la lumiere d'observations nouvelles
Authors: Vernet Jean 
Published: June 2020

Abstract
The discovery of several synclinal zones composed of Carboniferous and Mesozoic strata throws additional light on the structure of the crystalline complex of the Pelvoux massif, France, and substantiates the concept of large-scale plastic deformation with local fracturing on a small scale. The interaction between the crystalline complex and the sedimentary cover during Alpine deformation, both in the massif and in adjacent ranges, is discussed.
Discordances et phases de plissement dans l'extreme-sud tunisien et en Tripolitaine
Authors: Castany Gilbert , de Lapparent Albert F. 
Published: June 2020

Abstract
On the basis of a comparative study of Tripolitania (Libia) and southernmost Tunisia, defines Triassic to Pliocene unconformities and stages of folding. Evidently this part of Africa formed an unstable region bordering the African shield, along the Gabes gulf.
Observations nouvelles sur les terrasses de la Saone et leurs rapports avec les glaciations
Authors: Russo Philibert 
Published: June 2020

Abstract
Amplifies an earlier note on the terraces of the Dombes and the Saone, France, giving details of position and altitude of the Pliocene at various points on the Dombes, the relationship between the Quaternary and Pliocene terraces, and terrace features attributable to the relation between subsidence and uplift of the crystalline basement and the advance and retreat of glaciers in the vicinity of Lyons.
Les terrains metamorphiques du massif des Grandes Rousses (Isere)
Authors: Giraud Pierre 
Published: June 2020

Abstract
Distinguishes four groups in the pre-Carboniferous metamorphic series of the Grandes Rousses massif, Isere, France. Four distinct types can also be distinguished in the pre-Carboniferous granites of the massif. Both the crystalline series and the granites have been subjected to retrograde metamorphism (due to Alpine orogenic activity). The Carboniferous sediments discordantly capping the crystalline complex have also been metamorphosed, so that the transgressive contact is difficult to determine except where basal conglomerates are present.
Une grande fracture de l'Est du bassin de Paris
Authors: Stchepinsky Vladimir 
Published: June 2020

Abstract
A large fault recently discovered northwest of the Mirecourt fault in the eastern Paris basin, France, can be traced between Saint-Blin and Neufchateau on the basis of the fauna and lithology of the Jurassic terrain. It forms a 120-km curve convex towards the south, passing from an Armorican to a Variscan structural orientation. In the course of this study, a new species of Bigotites was discovered at Neufchateau in formations previously assigned to the upper Bathonian, but now known to be Bajocian.
Sur divers degres de patine eolienne dans le Tolosan
Authors: Astre Gaston 
Published: June 2020

Abstract
Study of the eolian patinas on pebbles of the Toulouse region, France, shows three degrees of polishing, representing at least three successive stages of atmospheric action. The most intense is the "desert-type," developed under hot climatic conditions in pre-Pliocene time; the "steppe-type" is less intense, affecting scarcely more than the surface, and is contemporaneous with Pleistocene loess; a third and still weaker degree is the subaerial patina found on stone artifacts from Balma.
Observations preliminaires sur le massif d'Ambin
Authors: Goguel Jean , Laffitte Pierre 
Published: June 2020

Abstract
The Ambin massif, south of the Mont Cenis col, Savoie (France), on the Italian border, appears as a window below the Schistes lustres nappe. It consists of a Permo-Carboniferous core, overlain by autochthonous Mesozoic rocks (Brianconnais facies), which were partially eroded before emplacement of the overriding nappe. The Mesozoic cover was metamorphosed at the same time as the Permo-Carboniferous core, and their present distinct aspects are due to their originally different chemical compositions. Emplacement of the nappe was accompanied by local slicing and folding. Later the nappe and its substratum were deformed together.
Les formations du Quaternaire ancien de la Boutonne superieure (Deux-Sevres)
Authors: Facon Roger 
Published: June 2020

Abstract
Bedded Quaternary slope deposits in the upper Boutonne region, Deux-Sevres, France, show evidence of two successive stages of frost action. Depending on the orientation of the beds, solifluction has produced either asymmetric valleys (west bank gentle, east bank steep) or valleys "en berceau" (very gently sloping sides and flat bottoms). The Boutonne valley itself is filled with periglacial deposits as yet hardly affected by recent, preponderantly chemical, erosion.
Le Valanginien de la region de Saint-Dizier (Haute-Marne); revision de la collection J. Cornuel et observations stratigraphiques
Authors: Bertrand Louise 
Published: June 2020

Abstract
A catalog of the Valanginian (Cretaceous) fossils of the Cornuel collection in the municipal museum at Saint-Dizier, France, comprising some 60 species. Many of these specimens were collected from mine workings now inaccessible. From the paleontologic evidence, supplemented by field study of stratigraphic sections in the vicinity, details of the Valanginian history of the Saint-Dizier region are worked out.
Observations sur les "sables infraliasiques" des Deux-Sevres
Authors: Arsicault Guy 
Published: June 2020

Abstract
At a few localities in the Fontenayle-Comte and Niort quadrangles, on the northern border of the Aquitaine basin, in the Deux-Sevres region, France, fluviatile deposits up to 10 meters thick are found between the peneplaned Paleozoic basement and the Hettangian (Jurassic) limestone. Plant remains in these Infraliassic sands have been identified as Hettangian. The sands were deposited on the peneplain in wide, shallow, north-south-trending channels. As the Hettangian sea transgressed, it easily penetrated these channels, first depositing lenses of limestone together with the uppermost sands, at the same time leaving trains of pebbles against the low divides, and subsequently covering the whole area with a uniform layer of limestone.
Sur les anciennes grottes de la Corniche de Sete (cap de Lazaret) et leur faune villafranchienne
Authors: Ellenberger Paul 
Published: June 2020

Abstract
Describes an important vertebrate fossil locality at Corniche de Sete, Lazaret cape region, France, consisting of ancient, partly submerged caves filled with Villafranchian (Pleistocene) material. The remarkable accumulation of small rodent and insectivore remains suggests that the caves were the lair of birds of prey and carnivores. The history of the Languedoc shore in this vicinity is roughly as follows: Previously developed karst topography was accentuated by late Tertiary uplift, then submerged in Astian? time; subsequent marine regression introduced the Villafranchian steppe conditions under which the fossil deposits accumulated; a series of transgressions and regressions related to the various glacial and interglacial stages ended with the uplift of the shore line which is continuing in the present.
La tectonique du Nepal oriental; un profil de l'Everest a la plaine du Gange
Authors: Lombard Augustin 
Published: June 2020

Abstract
A preliminary summary of data on the structure of eastern Nepal. structural units encountered from Mount Everest through Okhaldhunga to Jaynaga on the Ganges plain are, successively: the Tibet flagstone with its granitized base, the Khumbu nappes, which are overridden by the foregoing and in turn cover the Katmandu nappes, whose front faces the Navakot nappe, which lies in structural contact on the Molasse (Tertiary) of the Siwalik range.
Etude mineralogique des sediments sableux des nappes alluviales anciennes du Gave de Pau et de l'Adour
Authors: Duplaix Solange 
Published: June 2020

Abstract
The different Pleistocene alluvial layers in the valleys of the Gave de Pau and the Adour, France, can be distinguished, and their chronology established, on the basis of their mineral assemblages (both the light and heavy mineral fractions).
Petrographie des nappes alluviales de la Bigorre; essai de correlations et de chronologie
Authors: Alimen Henriette 
Published: June 2020

Abstract
Describes the petrographic composition of moraines and fluvioglacial deposits of the Bigorre region, France, and proposes a chronology based on the petrography, degree of alteration of pebbles, and development of soil at the surface of each layer. Correlations are suggested for the deposits along the ancient courses of the Gave de Pau and the Adour, and also for the glacial stages of the Pyrenees in the Bigorre region relative to those of the Alps.
Sur les conditions climatiques de formation de la terrasse dite preglaciaire aux environs de Lyon [with discussion]
Authors: Mazenot Georges 
Published: June 2020

Abstract
The gray alluvial deposits of the so-called preglacial terrace behind the arc of the outer moraine near Lyons, France, exhibit features characteristic of a cold periglacial climate. They are genetically related to the overlying Riss moraine.
Louis Guillaume (1894-1952)
Authors: Friedel Edmond , Goguel Jean 
Published: June 2020

Abstract
An obituary and bibliography of the stratigrapher Louis Guillaume, chief geologist of the Bureau des Recherches geologiques et geophysiques from 1941 to 1951, and director of geologic research at the university in Strasbourg from January 1, 1952, until his sudden death in an automobile accident barely six months later.
Sur les mylonites de la plaine Tikar au S de Banyo (Cameroun)
Authors: Koch Pierre 
Published: June 2020

Abstract
Mylonites form a broad band which crosses the southern part of the Banyo quadrangle, Cameroun, beginning near Foumban and continuing for 300 kilometers to Tibati. This band, noted for the first time during surveys of the Tikar plain in 1949, lies along the northern side of a large fault. Mylonization becomes progressively stronger toward the south. The fault seems to be related to the major Precambrian dislocations of the African basement complex.
Sur l'extension du Miocene dans les Seba Chioukh (Oranie occidentale, Algerie)
Authors: Perrodon Alain , Tempere Claude 
Published: June 2020

Abstract
Detailed study of the marl-sandstone series of the Seba Chioukh in western Oran, Algeria, shows that these formations are lower Miocene rather than Numidian (Eocene or Oligocene) and were deposited under shallow, brackish-water conditions. This throws new light on the Miocene paleogeography of the Tafna basin.
Remarques sur quelques daims fossiles
Authors: Patte Etienne 
Published: June 2020

Abstract
The antlers of the type species of Cervus (Dama) somonensis from Menchecourt (France) are very incomplete and are therefore a poor basis for definition of new species. Several remains have been incorrectly assigned to the species. Those described by Grimaldi really belong to C. (D.) grimaldiensis n.sp. and to at least one other species. Similar antlers collected at Caours (Somme) are deer antlers, whereas one from the Quaternary of Vendeuil (Aisne) is that of a young Irish elk.
Remarques sur la systematique et la valeur stratigraphique de quelques stromatolithes du Moyen-Congo
Authors: Riedel Alfredo 
Published: June 2020

Abstract
Stromatolites and calcareous structures found in the slate-limestone series (Precambrian? or lower Paleozoic?) of the Niari area in the central Congo region, French Equatorial Africa, are without chronological value, inasmuch as they are facies fossils. Nevertheless they are often valuable stratigraphically; several beds in which they are abundant can be used as horizon markers, particularly locally. The origin and classification of stromatolites are reviewed briefly.
Le modele cryo-nival des versants meubles de Skansen (Disko, Groenland); interpretation generale des grezes litees
Authors: Malaurie Jean N. , Guillien Yves 
Published: June 2020

Abstract
"The distribution of permafrost as well as the effects of permafrost profile, exposure, snow cover, vegetation, soil absorption, and degree of slope on erosion phenomena on the sandy slopes at Skansen [Disko; 69 degrees N. 52 degrees W.] in 1949 and Thule [76 degrees 34' N. 68 degrees 48' W.] in 1950-51 are discussed. Effects of permafrost on riverbank erosion are also described and the segregation of gravel into layers by particle size is explained as due to differential creeping."--SIPRE.
Sur des bois de coniferes provenant de terrains jurassiques de France
Authors: Grambast Louis 
Published: June 2020

Abstract
Describes the structure of a conifer from the upper Portlandian (Jurassic) of the Bray region, and assigns it to Xenoxylon phyllocladoides, hitherto unknown in France. Recognition of this species among the fossil woods from Cressensac in the Martel karst region indicates that the flora of the Cressensac locality is probably Jurassic, rather than Tertiary as previously described. Archaic radial punctations shown by another specimen in the Cressensac material also suggests the earlier age.
Les terrains quaternaires littoraux des cotes de Provence occidentale
Authors: Blanc Jean J. , Bonifay Eugene 
Published: June 2020

Abstract
The Quaternary littoral formations of the western Provence coast, France, consist principally of marine and dune formations. Four marine formations are described. Fossil sand dunes are found practically everywhere along this part of the coast, in most cases partly submerged. The stratigraphy of all the deposits is described in detail, and former sea levels deduced.
Notes sur la stratigraphie et la paleontologie de l'Aptien de Bordj Oultem, region de Bou-Saada (dep. d'Alger), Algerie
Authors: Emberger Jacques 
Published: June 2020

Abstract
Critical stratigraphic study of Aptian (Cretaceous) formations of the Bou-Saada region (found mainly on the west flank of the Bordj Oultem anticline), Algeria, shows that, in the northeastern Saharan Atlas, marine beds are present only in the Gargasian. The Bedoulian forms part of a lagoonal-continental complex including Barremian to Albian beds.
La serie dahomeyenne de Takamba dans la boucle du Niger
Authors: Radier Henri 
Published: June 2020

Abstract
Defines and describes a new Precambrian series in the Niger shield area of French West Africa--the Takamba series, composed mainly of quartzites. It is equivalent to the sedimentary member of the Dahomeyan series of other areas of French West Africa, and is overlain unconformably by the Ansongo series.
Les ecailles de Macinaggio (Corse)
Authors: Laporte Jean 
Published: June 2020

Abstract
The upper Jurassic history of the vicinity of Macinaggio, northeastern Corsica (France), differed from that of the Saint-Florent basin of northwestern Corsica in that sedimentation was continuous in the latter, whereas the Macinaggio region was a zone of emergence during the Dogger and Malm. Thrusting of sedimentary formations of the Macinaggio region over the Schistes lustres formation was toward the south. Metamorphism of the Schistes lustres is considered to have taken place before the end of the Cretaceous.
Granites et traces d'etain dans le Nord-Cameroun
Authors: Chaput Michel , Lombard Jean , Lormand Jacques , Michel Hans 
Published: June 2020

Abstract
Granites of northern Cameroun are described and attributed to granitization. Associated traces of tin were produced by pre-granite volcanism and concentrated by the granitization process. Optimum conditions for mineralization were attained in north Cameroun only on a small scale, which explains the scarcity of the tin occurrences in comparison with those of Nigeria.
Sur la presence du Miocene a miogypsines dans les monts de la haute Medjerda
Authors: David Louis , Flandrin Jacques 
Published: June 2020

Abstract
Several outcrops of marine Miocene formations containing foraminifers belonging to the genus Miogypsina, together with other foraminifers, were encountered during geologic reconnaissance in the Medjerda mountains, eastern Algeria. Although abundant in Morocco and Oran (northwest Algeria), Miogypsina had not previously been recorded from eastern Algeria.
Sur l'age des facies continentaux de l'Eocene inferieur aux environs de Sezanne (Marne)
Authors: Vaysse Annie , Feugueur Leon 
Published: June 2020

Abstract
Describes the continental facies of the lower Eocene in the vicinity of Sezanne, France. Three zones are distinguished, representing the Cuisian, Sparnacian, and Thanetian.
Etude des ostracodes du Cretace inferieur de la Haute-Marne
Authors: Stchepinsky Alexis 
Published: June 2020

Abstract
A stratigraphic, paleogeographic, and paleontologic study of the lower Cretaceous ostracod fauna of Haute- Marne, France. Cornuel's type species (1846, 1848) have been restudied and revised.
Sur la presence d'une serie renversee devant le front de la nappe de Caussols
Authors: Parent Henri 
Published: June 2020

Abstract
Describes a series of Cretaceous to Tertiary formations overturned to the south at the confluence of the Var and Esteron rivers (southeast France) in front of the sub-Alpine Caussols nappe. Presence of this series is additional proof of the Alpine direction of crustal dislocation in the region.
Mollusques de petites dimensions des formations continentales ludienne, sannoisienne et stampienne du Jura meridional et de la Haute-Savoie
Authors: Jodot Paul 
Published: June 2020

Abstract
The dwarf molluscan faunas of Ludian and Sannoisian (Tertiary) lacustrine beds of the southern Jura region and Haute-Savoie, France, developed in small, disconnected lakes. Normal-sized mollusks inhabited Stampian lakes, which were more extensive, and stunted forms were also present, reflecting the effects of influxes of sea water. A description of the Oligocene section at Genissiat, by Henri Vincienne, is appended.
Une coupe du Pinde meridional entre la Thessalie et l'Epire (Grece)
Authors: Aubouin Jean 
Published: June 2020

Abstract
The sedimentary series of the southern Pindus range, between Thessaly and Epirus, Greece, consists of an upper Triassic to upper Cretaceous pelagic series, in which radiolarites are extensively developed, grading upwards into sandy Eocene Flysch deposits. During the Tertiary these formations were displaced along the base of the upper Triassic by forces from the east and subjected to folding and faulting.
Precisions nouvelles sur les ecailles de la couverture du massif d'Ambin
Authors: Goguel Jean 
Published: June 2020

Abstract
Describes the thrust slices in the Mesozoic cover on the southwest border of the Ambin massif (French-Italian border region). They are composed mainly of Triassic limestones. The slices must have been transported over a long distance at the base of the Schistes lustres nappe, overriding the massif which had already been eroded.
Eryon yehoachi nov. sp. et Cenomanocarcinus cf. vanstraeleni Stenzel, crustaces decapodes du Cretace superieur de l'etat d'Israel
Authors: Remy Jean Marcel , Avnimelech M. 
Published: June 2020

Abstract
Describes two species (one new) of decapod crustaceans from poorly fossiliferous upper Cretaceous deposits of Israel.
La mineralisation des Hautes-Corbieres (Aude)
Authors: Jaeger Jean Louis , Ovtracht A. 
Published: June 2020

Abstract
Mesothermal and epithermal deposits of the Paleozoic complex of the Corbieres mountains, France, include veins of siderite carrying pyrite and chalcopyrite, barite veins with tetrahedrite and galena, and siliceous veins which are more or less rich in sulfides. Sedimentary deposits consist of scattered ferromanganiferous beds overlying the Devonian, which probably represent the earliest Dinantian (Carboniferous) deposits of the region.
Les galets exotiques de la cote charentaise
Authors: Gabis Victor 
Published: June 2020

Abstract
The origin of the exotic pebbles of quartz and Paleozoic igneous and metamorphic rocks found in the predominantly limestone terrain of the Charente coastal region, between Grouin du Cou point and Oleron island, France, is attributed, on the basis of their petrography, granulometry, and degree of marine abrasion, to transport from the Vendee massif by former streams with enormous flood plains extending as far as the continental shelf.
Une coupe geologique dans la region d'Okhaldunga (Nepal oriental)
Authors: Lombard Augustin , Bordet P. 
Published: June 2020

Abstract
Describes the geology along a section about 50 km long from Phaphlu in the Solo Khumbu through Okhaldunga to the Dudh Kosi, in the Himalaya range, east Nepal. The Nawakot nappes appear as windows through the Katmandu nappes; displacement of the latter has been of the order of 30 km.
Les limites septentrionales de l'Eocene du bassin d'Aquitaine
Authors: Schoeller Henri 
Published: June 2020

Abstract
Examination of all available borings shows that in the Aquitaine basin, France, the marine Lutetian (Eocene) transgression extended as far east as Monsegur, and that continental Lutetian beds were deposited around the edges of Cretaceous outcrops to the north and east. Continental sedimentation was essentially detrital--coarse sands and gravels. Although marine Lutetian beds overlap marine Paleocene strata toward the east, their northern limits are essentially the same. This has been found to be a general tendency of Tertiary seas in the Aquitaine basin. In the upper Eocene the sea retreated, but equivalent extensive continental sediments are rarely as coarse as those of the middle Eocene.
Considerations nouvelles sur la stratigraphie du sud de Madagascar
Authors: Boulanger Jacques 
Published: June 2020

Abstract
Recent observations in southwestern Madagascar lead to a revision of the Precambrian series. At the base is an amphibolitic complex consisting of the Androyen series in the east and the Vohiboryen series in the west, overlain with structural unconformity by the graphite-bearing Ampanihyen series in the center. This interpretation is based on superposition of well-defined lithologic units and on the existence of conglomerates at the Ampanihyen-Vohiboryen boundary and mylonites at the Ampanihyen-Androyen boundary. It fits the facts of structure, metamorphism, and sedimentation, and explains simply certain sequences in the center of the island hitherto considered anomalous.
Sur des phenomenes de corrosion et de concretionnement polarises de galets des formations alluviales et de calcaires en plaquettes de l'est de la France
Authors: Avias Jacques 
Published: June 2020

Abstract
Some limestone pebbles from the alluvial terrace deposits of the Marne at Saint-Dizier, France, show the effects of a polarized process of solution and concretion. A combination of variations in water content and evaporation processes in the superficial zone of the deposits, and the effect of capillary forces and gravity satisfactorily explains the phenomena (pits, protuberances, and other features) observed in these pebbles, as well as in fissured slabs of Bajocian (Jurassic) limestones.