bluuebunny/crossref_metadata_2025_split huggingface dataset:
Controle geologique des souterrains de la region ouest de la Societe nationale des chemins de fer; methodes et resultats
Authors: Feugueur Leon , Soyer R. 
Published: June 2020

Abstract
Twenty-six railroad tunnels in western France, most of them more than 100 years old, were carefully examined in order to study the relations between their geologic and topographic setting and such structural and erosional alterations as may have taken place since construction. Twenty-five of the tunnels are in Cretaceous formations. Effects of alteration, gravity, ground-water movement, fissuring, formation of concretions, frost action, and vibrations are sumarized, as a guide for future tunneling for highways and other purposes.
Gites de barytine des Corbieres (Aude)
Authors: Ovtracht Andre 
Published: June 2020

Abstract
A so-called barite province can be distinguished in the Mouthoumet massif of the Corbieres mountains, France. Traces and deposits of almost pure barite are abundant and always occur in middle Devonian deposits. Mineralization is pre-Permian and apparently slightly younger than other Hercynian mineral deposits of the massif. Some of the occurrences are being or could be exploited commercially.
Remarques sur l'ontogenie du ligament et de la charniere de quelques especes de lamellibranches (Noetidae et Carditidae)
Authors: Freneix Suzanne 
Published: June 2020

Abstract
Describes ontogenetic details of the ligament and hinge of certain pelecypods belonging to the Noetidae and Carditidae. The report is based mainly on study of material from Lutetian (Tertiary) deposits of Senegal.
Disharmonies et decollements dans le Jurassique du faisceau salinois (Jura)
Authors: Caire Andre 
Published: June 2020

Abstract
Asymmetric structural features in the Salins-les-Bains region, France, indicate that the Liassic and middle Jurassic are tectonically independent. They are considered an effect of dislocation of the sedimentary cover which was contemporaneous with deformation of the basement structure.
Sur la geologie de la zone littorale du Montenegro; les bouches de Kotor (Yougoslavie); comparaison avec les series helleniques correspondantes
Authors: Aubouin Jean 
Published: June 2020

Abstract
The autochthonous zone of the Montenegro coast (Yugoslavia) is correlative with the Gavrovo zone of Greece, and the overthrust Cukali zone of Yugoslavia with the Pindus zone of Greece. The paleogeographic and structural consequences of this correlation are examined.
Evolution morphologique en basse Provence depuis le Miocene
Authors: Cornet Cecile 
Published: June 2020

Abstract
Since the end of the Cretaceous, lower Provence (France) has been a continental region. In the Miocene, the drainage was toward the north. Pontian and Plio-Quaternary crustal movements caused southward tilting of the Miocene surface and resulted in the present topography. The deep submarine canyons off the coast can be explained in terms of the post-Miocene flexuring.
Etude des depots flandriens de l'anse Duguesclin, pres de Cancale (Ille-et-Vilaine)
Authors: Bourcart Jacques , Boillot G. 
Published: June 2020

Abstract
The Flandrian (Pleistocene) stratigraphy and the intermittent character of the Flandrian transgression in the Cancale area (Ille-et-Vilaine, France) are established on the basis of information from a series of borings in a sand bar in the Duguesclin bay. The present topography is an exact reflection of the Flandrian topography; the sand bar and the marsh behind it have retreated inland, however.
Brachiopodes tertiaires d'Arabie et de Syrie
Authors: Elliott Graham F. 
Published: June 2020

Abstract
Describes three Tertiary brachiopods from the Middle East--Streptaria arabica n.sp. from the Eocene of Arabia, Argyrotheca zenobiae n.sp. from the Miocene of Syria, and Megerlia truncata from the Pliocene of Syria. Their distribution and affinities are briefly discussed.
Observations sur le Primaire de la region de Bobo-Dioulasso (Haute-Volta)
Authors: Lajoinie Jean Pierre 
Published: June 2020

Abstract
A 400 meter-deep borehole through the Paleozoic section at Bobo-Dioulasso in the upper Volta region, western Africa, shows that the Bobo sandstones are thicker than heretofore mapped and that there is a schistose formation at least 70 meters thick in the upper part of the Sotuba sandstones, to which the schist belt northeast and southeast of Dedougou, originally mapped as the Toun schists, belongs. Other details of the stratigraphy are reported.
Introduction a la seance sur les Cordilleres betiques
Authors: Durand Delga Michel 
Published: June 2020

Abstract
Outlines the essential features of the Betic cordilleras, an extension of the Alpine system in Spain covering some 600 kilometers between the Atlantic and the Mediterranean basins, by way of an introduction to a symposium on the geology of the Spanish ranges. (The various papers presented at the symposium are cited under the separate authors; see Alloiteau 6, Astre 9, Azema 2, Busnardo 1, 2, Chauve 3, Didon 1, Dubar 1, Duplaix, S., Durand Delga 3, Escandell, B., Foucault 3, Garcia Rodrigo, B., and Linares, A.)
Sur la structure du nord de la province d'Alicante (Espagne)
Authors: Garcia Rodrigo Bernardo 
Published: June 2020

Abstract
The Betic ranges in the northern part of Alicante, Spain, are folded and faulted. As a whole, the structure of the region is characterized by general displacement of the post-Triassic cover, due to the plasticity of the upper Triassic. The mechanism could have been either simple gravity sliding accompanying tilting, or thrusting due to pressures exerted by advancing Subbetic units, or both. The numerous faults cutting the folded structures are related to dislocation of the cover; they were developed either during the displacement, which was to the north-northwest, or in the case of the normal faults, by subsequent decompression and expansion.
Apercu sur le Prebetique de la region de Jaen (Andalousie, Espagne)
Authors: Busnardo Robert 
Published: June 2020

Abstract
The Prebetic zone of the Jaen region, Spain, consists of three main units. The Castillo unit on the north consists of Vraconian? and Cenomanian (Cretaceous) limestones thrust over the Tertiary; next is the Pena de Jaen unit, consisting of similar but more fossiliferous and more neritic beds; the thick Jabalcuz-Los Villares series on the south (Liassic to Cenomanian) is thrust over the Pena de Jaen unit. Thus parautochthonous, subautochthonous, and autochthonous masses are all represented in the Prebetic zone. The concept Prebetic is becoming more purely structural than has been the case in the past; it is applied to all the sedimentary formations below or before the vast Subbetic overthrust.
Le Flysch gaditan au nord et au nord-est d'Algesiras (prov. de Cadix, Espagne)
Authors: Didon Jean 
Published: June 2020

Abstract
Several allochthonous units were discovered during geologic reconnaissance in 1958-59 north and northeast of Algeciras, Spain. At the base is the Estepona Flysch, comprising upper Oligocene and Miocene deposits. Above this are the Algeciras unit, consisting of upper Eocene and Oligocene Flysch deposits, and the Camarote unit, composed of Tithonian (Jurassic) and lower Cretaceous sandy marls. At the top are the Aljibe sandstone on the west (Oligocene) and the Argueelles unit on the east (upper Cretaceous to middle Oligocene limestones). Most of these units originated in Ultrabetic regions.
Introduction a la seance sur la geologie des Dinarides
Authors: Aubouin Jean , Brunn J. H. 
Published: June 2020

Abstract
Reviews present trends and results of research on the Dinaric Alps of Yugoslavia and Greece, by way of an introduction to a symposium on the geology of the range. The various papers presented at the symposium are cited under the separate authors; see Aubouin 4-6, Bornovas, Brunn 3, Celet, Ciric 1, 2, Dercourt 2, Mercier, Milovanovic, Neumann, M., Papastamatiou, Rollet 2.
Les zones helleniques internes et leur extension; reflexions sur l'orogenese alpine [with discussion]
Authors: Brunn Jan H. 
Published: June 2020

Abstract
The inner zones of the Dinaric Alps are particularly well expressed in the Hellenides. Following a description of the specific features of the different zones, beginning with the Macedonian sector where they are best known or most complete, their active role in orogenic mechanisms is discussed. A review of the whole Mediterranean sector of the Alpine system, from Arabia to the western Alps, shows the importance of longitudinal movements in the genesis of the system.
Une plante-guide du Stephanien du bassin de Saint-Etienne; Odontopteris pseudoschlotheimi nov. sp
Authors: Maistre Jacques de 
Published: June 2020

Abstract
Describes a new species of Odontopteris--O. (Mixoneura) pseudoschlotheimi--from the upper Stephanian (Carboniferous) Avaise zone in the Saint-Etienne coal basin, France. It is similar to O. subcrenulata.
Les sauriens des calcaires lithographiques de Baviere, d'age portlandien inferieur
Authors: Cocude-Michel Marguerite 
Published: June 2020

Abstract
Describes three reptiles (Palaeolacerta bavariscus n.g. n.sp., Bavarisaurus macrodactylus, and Broilisaurus schroederi) from upper Jurassic lithographic limestones of Bavaria, Germany. They are lower Portlandian in age, and exhibit affinities with the living families Iguanidae, Gekkonidae, and Lacertidae.
Etude geologique des collines de Pichauris, pres Marseille (Bouches-du-Rhone)
Authors: Guieu Gerard 
Published: June 2020

Abstract
The Pichauris hills northeast of Marseilles, France, are formed principally of Triassic and Infraliassic formations resting on Suprajurassic beds, and are structurally independent of the Allauch massif and other surrounding units. They represent the prolongation of the Etoile fold, overthrust to the east. Since isolation at the end of the Jurassic, the hill zone has always tended to be emergent.
Flysch et molasse
Authors: Rech-Frollo Marguerite Marie 
Published: June 2020

Abstract
Petrographic and geologic observations on the Flysch deposits of the French and Swiss Alps, the Romanian Carpathians, the northern Apennines (Italy), and the French and Spanish Pyrenees show that there are two distinct groups of formations. The first group consists of true Flysch deposits, but deposits of the second group are comparable to marine molasse beds. The petrographic and geologic characteristics of the two types are compared in a table, and examples of each are given.
Etude d'un eboulement dans le bief a silex sous la voie ferree a Foucart-Alvimare (Seine-Maritime)
Authors: Feugueur Leon 
Published: June 2020

Abstract
Slumping along the Paris-Le Havre railway at Foucart-Alvimare (Seine-Maritime, France) was thought at first to be caused by sudden collapse of an underground quarry. Geologic investigation showed that it was due to gradual settling in the course of evolution of the "bief a silex" (a cherty residual clay) overlying the limestone and underlying the three-meter surface layer of plateau clays.
L'Ordovicien superieur et la serie paleozoique au nord du granite de Querigut (Pyrenees de l'Aude) [with discussion]
Authors: Cavet Pierre 
Published: June 2020

Abstract
The upper Ordovician is well developed north of the Querigut granite massif in the French Pyrenees. Conglomerates, "perforated" schists, and dacitic rocks constitute the most typical facies. Caradocian deposits are also present, and are granitized in places. Pre-Caradocian formations are difficult to distinguish from upper Paleozoic deposits, but are known to occur. Gotlandian (Silurian), Devonian, and Dinantian (Carboniferous) deposits are also represented in the region.
Lineations, schistosite et phases de plissement durant l'orogenese hercynienne dans les terrains anciens des Pyrenees orientales, leurs relations avec le metamorphisme et la granitisation [with discussion]
Authors: Guitard Gerard 
Published: June 2020

Abstract
Study of structural details in the metamorphic formations of the eastern Pyrenees shows that there were two phases of movement in the Hercynian orogeny (late Paleozoic). Movements of the earlier phase produced folds and lineations trending northeast-southwest, occasionally north-south, and coincided for the most part with general metamorphism and formation of the extensive augen gneiss or leptynitic massifs of the range. Recrystallization antedated the movements to some extent, however. The later phase caused microfolding of the schistosity in certain zones of movement and, in the Canigou massif, initiated migmatization and granitization that continued after movement ceased. In the Agly massif the structures were developed mainly in the last stage.
Etude de quelques oligoelements dans la serie liasique du Mont-d'Or lyonnais (Rhone)
Authors: Jamond Colette , Lapadu-Hargues P. 
Published: June 2020

Abstract
Study of trace elements (Pb, Sn, Ag, Cu, Ni, Cr) in members of the Liassic series of the Mont d'Or in the Central Massif of France indicates that the content depends more on conditions of sedimentation than on the chemical nature of the elements themselves. The genesis of a sedimentary mineral deposit therefore depends mainly on sedimentary conditions, rather than on the chemical character of the sediment as is the case with replacement deposits.
La microfaune de foraminiferes de quelques gisements classiques d'age burdigalien dans le Bordelais
Authors: Julius Charles 
Published: June 2020

Abstract
The foraminifera in the classic Burdigalian (Tertiary) deposits of the Saucats, Cestas, and Leognan localities in the Bordeaux region, France, are listed. A close relationship is indicated between the faunal assemblage and the sedimentary facies.
Presence du Miocene dans le "tunnel ferroviaire de Monaco", Alpes-Maritimes
Authors: Feugueur Leon , Le Calvez Y. 
Published: June 2020

Abstract
Tunneling operations in the Monaco railroad tunnel have permitted precise stratigraphic dating of Mio-Pliocene deposits of this part of the Mediterranean coast. Pliocene deposits directly overlie Miocene deposits in a boring at Roquebrune-Cap Martin (Alpes-Maritimes, France). At Roquebrune, Miocene conglomerates are overlain by Miocene Molasse deposits; at the tunnel entrance on the Ventimiglia side (Liguria, Italy), the Molasse is normally succeeded by Pliocene beds of a colder and deeper facies containing a rich planktonic foraminiferal fauna.
Sur le granite orbiculaire de Tisselliline (Hoggar, Sahara central)
Authors: Grolier Jacques 
Published: June 2020

Abstract
Orbicular granite outcrops in a small area near the northern edge of the Tisselliline granitic massif in the Ahaggar mountains (Algeria) in the central Sahara. Petrographic and chemical study leads to a double diffusion theory of its origin. Whereas orbicular rocks are generally found near a migmatite front, this particular example indicates that an orbicular facies can also be associated with small granite massifs, thus suggesting the possibility that a phase analogous to migmitization may be involved in the genesis of certain intrusive massifs of this type.
Gneiss, marbres, prasinites en coussins et polymetamorphisme dans la partie sud-occidentale du massif Dora-Maira (Alpes cottiennes piemontaises)
Authors: Michard Andre , Vialon P. 
Published: June 2020

Abstract
Igneous rocks of the Dora-Maira massif in the Po river headwater region in the Cottian Alps of Piedmont, Italy, are surrounded, and in many places surmounted, by gneiss, marble, and other associated metamorphic rocks of controversial age. The evidence is considered conclusive that the age of the rocks ranges from Permo-Carboniferous to Triassic. Criteria for discrimination of successive periods of metamorphism, including retrograde metamorphism, are reviewed. Carbonatized rocks and phengitic conglomeratic quartzite serve as "metamorphic thermometers" useful locally for discriminating successive periods of metamorphism. Cataclastic effects are also useful for determining time relationships, as are also optical peculiarities of quartz, feldspar, white mica, and biotite in various rocks. It is concluded that the region has been subjected to two major periods of metamorphism, and that the Alpine metamorphism in general was less intensive, and in certain aspects was retrograde compared with the pre-Alpine metamorphism.
Caracteres petrographiques et petrochimiques des roches eruptives grenues de la Font-des-Vaches (massif volcanique du Cantal)
Authors: Vatin-Perignon Nicole 
Published: June 2020

Abstract
Eruptive rocks of the Font-des-Vaches complex in the Pliocene trachyphonolite massif of the Cantal region, France, were described by Lacroix in 1907 as a dike of "essexite-gabbro" emplaced in older volcanic rocks and subsequently exposed by erosion. Although the Font-des-Vaches rock is exposed over only a small area, and contact with the surrounding trachyphonolite is obscured, detailed petrographic and chemical studies seem clearly to indicate a complete gradation from one into the other. It is concluded that the Font-des-Vaches rock is, from its more acidic nature, a pegmatitoid of the ankaratrite type, formed in the final stage of crystallization of residual magma following crystallization of the surrounding trachyphonolite.
Contribution a l'etude du Couvinien dans le bassin de Fort-de-Polignac (Sahara)
Authors: Chaumeau Jean , Legrand Philippe , Renaud Alzine 
Published: June 2020

Abstract
The contact of lower Devonian sandstone and shaly sandstone with middle Devonian shaly limestone is exposed at several points in the vicinity of Fort-de-Polignac in the Sahara. The lower Devonian beds show large lateral variations. Instead of the Givetian (upper middle Devonian) transgressing the lower Devonian, as previously supposed, the transgression began in the center of the basin in the Couvinian or Eifelian, i.e., lower middle Devonian, spread progressively eastward and westward, and did not reach the Oued Samene area until upper Couvinian. The submergence of the lower part of Tihemboka, west of In Akaouet, did not occur until Frasnian (lower upper Devonian).
Lyticoceras corroyi nov. sp. de l'Hauterivien nicois
Authors: Thomel Gerard 
Published: June 2020

Abstract
The lower Cretaceous of the vicinity of Nice in southeastern France is very thin, and has many stratigraphic breaks in the Valanginian and Aptian stages. Ammonites of the Hauterivian, Barremian, and Albian stages, on the other hand, are diversified and well represented. A new species of ammonite, Lyticoceras corroyi n. sp., was found in the Hauterivian of Rayet, near Falicon, Maritime Alps.
Les series primaires des Tassilis Oua-n-Ahaggar au sud du Hoggar entre l'Ar et l'Adrar des Iforas (Sahara meridional)
Authors: Lessard Lionel 
Published: June 2020

Abstract
The Paleozoic basin of Tassilis Oua-n-Ahaggar is shallow and cut by faults of great length and throw into horst-and-graben structure with general orientation northward. The Cambro-Ordovician formations are chiefly sandstone and conglomerate totalling more than 500 m. The Silurian is graptolite shales up to 300 m thick. The Devonian is principally sandstone and shale, with some limestone. The upper Devonian is transgressive. The lowermost Carboniferous is identical to upper Devonian, chiefly clastic but overlain by Carboniferous marine limestone rich in brachiopods. Dikes and sills of altered dolerite of Hercynian (?) age cut the pre-Devonian formations.
Etude d'une faune d'Inocerames du Senonien superieur des Charentes et description d'une espece nouvelle du Senonien de Madagascar
Authors: Sornay Jacques 
Published: June 2020

Abstract
A new species, Inoceramus (Haelienia) pseudoregularis, is described from the upper Campanian of Madagascar. Three additional Inoceramus species are described from the Campanian of Charentes, France. A lectotype is designated and described for Inoceramus regularis.
Etude petrographique et structurale du complexe volcanique de Saint-Thibery (Herault)
Authors: Capdevila Raymond 
Published: June 2020

Abstract
The middle Pleistocene volcanic complex between Bessan and Saint Thibery (France) is composed of basanite volcanic material. Three main formations are recognized: tuffs, cones, and flows. Petrographic analysis of the material shows that the basanite is slightly deficient in silica as indicated by the presence of leucite. The basanite contains phenocrysts, microlites, and xenoliths. Scorias were the first products emitted, dikes the last. Structural analysis of the flows is based on their internal and external characteristics which were affected by the mode of diffusion of the lava, the behavior of the gas, and the cooling. The frontal and lateral borders of the flows are marked by coarse breccias which distinguish the original limit of the flow from the erosional limit. The upper borders of the flows are eroded, the lower borders are marked by scoriaceous breccias.
Comparaison des series cambro-ordoviciennes reconnues en affleurement dans la region d'Amguid et en forage au centre du bassin saharien occidental
Authors: Legrand Philippe 
Published: June 2020

Abstract
Cambrian-Ordovician units in the central basin of the western Sahara are correlated with those of the eastern and western sections of the Amguid depression in Hoggar (Algeria). The El Moungar conglomerate, Djebel In Hedrane sandstone, and the lower Tassili sandstone are tentatively designated as lower Cambrian. The upper Tassili sandstone is Tremadocian, possibly lower Arenig at the top. The Iraouene sandstone represents the upper Arenig and Llanvirnian. The Felar-Felar complex is Gotlandian.
Description de Teutloporelles et de Gyroporelles dans le Ladinien du val Grana (Alpes cottiennes internes, Italie)
Authors: Michard Andre 
Published: June 2020

Abstract
Calcareous algae are described from the dolomites of the Cavoira valley: Teutloporella aequalis (Guembel) var. gracilis n. var., T. herculea (Stopp.) var. gracile?), Gyroporella n. sp. gr. ampleforata (Guembel), and Diplopora sp. This fauna shows great similarity to Austro-Alpine forms. The dolomites are considered as Ladinian--'Cuneese Triassic'.
Observations relatives au trajet du bois primaire dans la tige de Lyginopteris oldhamia Binney (Pteridospermees)
Authors: Louvel Christiane 
Published: June 2020

Abstract
The Coal Measures of Shore Littleborough, England, contain coal balls with well-preserved pteridosperm stems belonging to the genus Lyginopteris. Serial sections of the stem of L. oldhamia reveal the presence of the phenomenon of anastomosis between the vascular bundles of the primary wood.
Les faunes malacologiques lacustres et le probleme du synchronisme de l'Eocene inferieur des Corbieres et du bassin de Paris. Validite de l'etage 'sparnacien' dans les Corbieres
Authors: Plaziat Jean Claude 
Published: June 2020

Abstract
On the basis of a biometric study of lacustrine mollusk associations, the lower Eocene units of the Corbieres and Paris basins are reviewed. The boundary between the Thanetian and Sparnacian in the Corbieres basin should be placed a little below the base of the first marine bed of the Sparnacian. In the Corbieres basin two lacustrine faunas are superimposed: the first, Thanetian, includes the Vente-Farine marine deposits. It disappears with the advent of a new marine transgression containing a different fauna which precedes the second continental fauna equivalent to the Sparnacian Epernay beds of the Paris basin. This fauna validates Dollfuss's (1903) application of the Sparnacian stage in the Corbieres basin.