bluuebunny/crossref_metadata_2025 huggingface dataset:
Sur la presence d'une seule couche phosphatee au gisement du Djebel Onk (Algerie)
Authors: Visse Leon
Published: June 2020

The so-called upper and lower phosphate beds of the Onk massif, Algeria, represent one bed, whose northern extension was displaced by a pre-Miocene fault.
Polypiers des couches albiennes a grandes trigonies de Padern (Aude)
Authors: Alloiteau J.
Published: June 2020

With one exception, the corals from Albian (Cretaceous) Trigonia-bearing beds of the Padern area, Aude, France, are colonial forms, which represent a shallow, warm-water reef fauna. Descriptions of one new genus and several new species are included.
Tubes silicifies presumes de Cephalodiscus, dans le Lutetien lagunaire de la region parisienne
Authors: Abrard Rene , Ph. Dollfus Robert , Soyer Robert
Published: June 2020

The ornamentation of silicified tubes found in Lutetian (Tertiary) lagoonal sediments of the Paris basin, France, consists of a zigzag series of transverse chevrons, a feature known only in graptolites and pterobranchs. Comparison with tubes of living and fossil Rhabdopleura indicates that the silicified tube can tentatively be assigned to Cephalodiscus lutetianus n.sp.
Remarques sur la tectonique de couverture dans les Alpes bergamasques et les Dolomites
Authors: Fallot Paul
Published: June 2020

Many of the local folds and overthrusts in the Bergamask, Dolomite, and Julian Alps of Italy were produced as a result of sliding of the sedimentary cover over an immobile Hercynian basement. The basement did not participate in the process of dislocation, which took place in Triassic beds overlying Permian igneous rocks.
L'Oligocene des environs de Tizi-Ouzou (Algerie)
Authors: Muraour Pierre
Published: June 2020

Sandstones, conglomerates, and breccias in the Tizi-Ouzou region, Algeria, previously mapped as Miocene, are shown to be Oligocene in age.
Les limites SE du massif du Pelvoux et de l'anticlinal amygdaloide des Ecrins
Authors: Vernet Jean
Published: June 2020

Discusses the structural relations of the southeastern margin of the Pelvoux massif, France, with the bordering Triassic-Liassic Ailefroide-Col du Loup synclinal basin and the sedimentary cover of Nummulitic (Tertiary) formations. The massif is surrounded by a horseshoe-shaped major syncline, open to the north, which is responsible for its domelike appearance and in which the almond-shaped Ecrins anticline is developed.
Etude de spongiaires siliceux du Cretace superieur d'Espagne
Authors: Lagneau-Herenger Lucette
Published: June 2020

Describes remains of siliceous sponges (including new species) from upper Cretaceous deposits of Spain.
Les subdivisions du Carbonifere continental
Authors: Jongmans Willem J. , Pruvost P.
Published: June 2020

Proposes a fourfold general subdivision of upper Carboniferous continental beds, based on the characteristics of the floras and faunas, and discusses the boundary between the Carboniferous and the Permian, concluding that the Autunian should be included in the Carboniferous.
Terrasses et phenomenes periglaciaires dans la vallee de l'Huisne en amont du Mans (Sarthe)
Authors: Poser Hans , Tricart J.
Published: June 2020

Describes the succession of terraces in the Huisne valley above Le Mans, Sarthe, France, and discusses the effects of solifluction and other periglacial processes, the accumulation of eolian material, and the morphologic development of the terraces. It is concluded that the terraces represent climatically controlled (rather than eustatic) land forms and that there were periods of coldclimate in western France prior to the Wuerm glaciation.
La famille des Tissotiidae dans le Turonien inferieur du Gard
Authors: Faraud M.
Published: June 2020

Lists a lower Turonian (Cretaceous) cephalopod fauna from Gard, France, which shows remarkable affinities with European and other faunas. Several newly collected species of Tissotiidae represented in the fauna are described, including the new species Pseudotissotia gagnierei and Leoniceras luciaeformis.
Le synclinorium de l'aiguille de Morges et le style des deformations alpines du cristallin du Pelvoux
Authors: Vernet Jean
Published: June 2020

A study of the structural surface of the Pelvoux crystalline complex in the Morges synclinorium, southeast of Chapelle-en-Valgaudemar, in the Briancon region, France. This surface resembles that of a cumulus cloud in shape. It is concluded that during the Alpine orogeny the crystalline complex was deformed, on a large scale, as a semirigid, semiplastic mass, with faulting only on a small scale. The sedimentary cover, on the other hand, was subjected to strong tangential displacements, resulting in the piling up of thrust slices. The mechanism of formation of closed synclines, enlarging downwards and often enclosing pockets of sedimentary rocks entirely within the crystalline rocks, is not yet clear.
Inoceramus algeriensis Heinz, une espece mal connue d'Algerie, avec quelques nouvelles observations sur le mode de vie des inocerames
Authors: Voute C.
Published: June 2020

A new, more complete description of Inoceramus algeriensis, based on specimens from the type locality (Cretaceous Campanian beds of Maafa, Algeria). The association with oysters, noted particularly in the group I. lamarcki, indicates a benthonic existence in rather shallow quiet waters.
Stratigraphie du "Lusitanien" de la region de Verdun
Authors: Maubeuge Pierre L.
Published: June 2020

A detailed study of so-called Lusitanian (Argovian and Rauracian--Jurassic) limestones in the Verdun region, Meuse, France. Twentyone exposures, mostly in quarries, are described, and a type section established. About 40 m of Argovian beds are overlain by 35-40 m of lower Rauracian beds; two middle Rauracian members together reach a maximum thickness of 25 m, but disappear toward Flabas; the upper Rauracian member reaches a maximum of 12 m, and thins toward Flabas. An erosional surface and sedimentary hiatus mark the Rauracian-Sequanian contact. No attempt is made to create new stratigraphic units; this study is purely descriptive, in accordance with accepted divisions. It is suggested in a footnote, however, that the term Lusitanian, used only in France, should be dropped in favor of Oxfordian, which has priority and more universal usage.
Sur une perthite-syenite de Baibokoum et sur une perthite-granulite de Passi (territoire du Tchad)
Authors: Jeremine Elisabeth
Published: June 2020

Describes the Baiebokoum perthite syenite and the Passi perthite granulite of the southern Chad region, French Equatorial Africa, which resemble certain perthitic rocks from the Fennoscandian shield. The feldspar is potassic, impregnated with perthite; plagioclase is lacking. Small amounts of augite, hornblende, biotite, and hypersthene occur in the syenite, and a few augite crystals in the granulite. As far as can be deduced from their mineralogy, the two rocks were formed under the same conditions of temperature and pressure. More detailed field work will no doubt establish whether they are independent intrusions or part of a series of magmatic differentiates like their Scandinavian counterparts. A chemical analysis of the syenite is given, and compared with a Norwegian hypersthene syenite and a Swedish perthite syenite. A review of opinions on the origin of perthite is included.
Sur le prolongement de la ride de Villagrains-Landiras vers l'est
Authors: Pressouyre F.
Published: June 2020

Study of the eastward prolongation of the Villagrains-Landiras fold in the Garonne basin, France, throws light on the precise dating of some of the last movements of the Pyrenean orogeny. Not a very pronounced structure, it nevertheless has determined the course of the Garonne in the region and has influenced Miocene sedimentation in this part of the Aquitaine basin.
Une combinaison de mouvements verticaux et de mouvements tangentiels dans l'evolution structurale du Liban
Authors: Angenieux J.
Published: June 2020

The structure of Lebanon consists of combinations of folds with faults and flexures, superposed both in space and in time. Fundamentally the region was broken by movement along great vertical faults into horsts and grabens at depth, dying out upward into S-folds and monoclinal flexures (superposition in space). Tangential peri-Alpine pressures acting on these primary structures (superposition in time) folded the horsts into anticlines, the grabens into synclines, and the deeper monoclines into second-order S-folds, but merely accentuated the superficial monoclinal flexures. The essentially north-south orientation of the primary faults was altered by Alpine tangential pressures to south-southwest-north-northeast. If the concept of the "Syrian arc" is valid, the Palmyran and Egyptian arms of the arc meet at a distinct angle in the region of Lebanon, which thus structurally, as well as culturally, constitutes a "node of interference" between Eurasia and Africa.
Devonien moyen et superieur de la Saoura et des environs d'Ougarta (Sahara occidental)
Authors: Petter Germaine
Published: June 2020

A detailed description of the stratigraphy and fauna of two outcrops of middle and upper Devonian deposits in the northern part of the western Sahara--one in the Saoura valley, the other in the Ougarta mountains, Algeria. The middle and upper Devonian are easily distinguished from the lower by their rich goniatite and Clymenia faunas, on the basis of which these outcrops can be correlated with the principal zones established in the Devonian of Germany.
Sur deux echinides tertiaires de la Nouvelle-Caledonie
Authors: Jeannet Alphonse
Published: June 2020

Describes two late Tertiary echinoids, Holcopneustes? pomeyroli n.sp. and Strongylocentrotus sp., from New Caledonia, where fossil echinoids are extremely rare.
Mimetisme ou "pseudomorphose" chez des lamellibranches fixes sur echinides
Authors: Saint-Seine Roseline de
Published: June 2020

Describes several cases of sessile pelecypods (Dimyodon and Pycnodonta), attached to Micraster which have developed tubercules reflecting the shape of the echinoid in which they grew. It is proposed that the mineralogic term "pseudomorphism" be extended to apply to such cases of mimesis in fossils.
Reunion extraordinaire de la Societe geologique de France dans le Jura franco-suisse du 18 au 26 juillet 1951
Authors: Glangeaud Louis , Appert G. , Aubert D. , Bonte Antoine , Bourguin P. , Caire Andre , Castany Gilbert , Dreyfuss Maurice , Giulleaume L. , Jeannet Alphonse , Lagotala H. , Lavigne J. , Michel P. , Vincienne H.
Published: June 2020

A compilation of reports on the geology of the Jura mountains, with particular reference to structural features and outcrops observed during the field trip of the French Geological Society in the region in 1951.
Sur un gisement de foraminiferes d'age cenomanien superieur provenant de la region de Taza (Maroc)
Authors: Carbonnier Andre
Published: June 2020

Describes a foraminiferal assemblage from the Taza region, Morocco, whose association indicates an upper Cenomanian (Cretaceous) age. Five new species and one new variety are included.
Quelques anomalies chez Clypeaster melitensis Michelin
Authors: Roman Jean
Published: June 2020

Describes two types of anomalous structures in Miocene sea urchins of the species Clypeaster melitensis from Morocco, and attributes them to the action of predators and to a myzostome parasite.
Sur l'existence de formes differentes de Schizaster en Europe et en Afrique
Authors: Zoeke Marga E.
Published: June 2020

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

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

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

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

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.
La geologie du Touva (Siberie) d'apres des travaux sovietiques recents
Authors: Maas Walther
Published: June 2020

A resume of the geology of Tuva, southern Siberia, based on recently published Russian papers.
Les terrains metamorphiques du massif des Grandes Rousses (Isere)
Authors: Giraud Pierre
Published: June 2020

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

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

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

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

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

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.
Quelques remarques sur la croissance et la segmentation des trilobites
Authors: Hupe Pierre
Published: June 2020

A series of curves, based on measurements of larval and adult specimens, present quantitative information on the growth anfd segmentation of trilobites.
Observations sur les "sables infraliasiques" des Deux-Sevres
Authors: Arsicault Guy
Published: June 2020

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

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.
Note preliminaire sur le Quaternaire de Camargue
Authors: Bonnet Andre , Duboul-Razavet Christiane
Published: June 2020

Presents details on the thickness, lithology, and fauna of the Quaternary in Camargue, Rhone delta region, France, obtained in the course of petroleum exploration. The fauna, listed by horizons, is essentially Flandrian.
La flore pontienne de Gourgouras (Ardeche)
Authors: Grangeon Pierre
Published: June 2020

Describes a Pontian (Tertiary) flora from Gourgouras, Ardeche, France, occurring in strata lying between the granitic basement and plateau basalt. This flora, composed mainly of Mediterranean species, indicates a drier and warmer climate than that of the present.
La tectonique du Nepal oriental; un profil de l'Everest a la plaine du Gange
Authors: Lombard Augustin
Published: June 2020

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.
Sur la position stratigraphique d'un niveau-repere a radiolaires (Albien eleve et Vraconien) en Algerie
Authors: Magne Jean , Sigal Jacques
Published: June 2020

Upper Cretaceous beds in Algeria containing a rich radiolarian microfauna are shown to belong to the Vraconian and to constitute a valuable stratigraphic horizon marker.
Etude mineralogique des sediments sableux des nappes alluviales anciennes du Gave de Pau et de l'Adour
Authors: Duplaix Solange
Published: June 2020

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

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

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

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.
Le chanoine A. Carpentier (1878-1952)
Authors: Delepine Gaston G.
Published: June 2020

A biographic sketch of the French paleobotanist Carpentier; includes a bibliography of his numerous works.
Sur les mylonites de la plaine Tikar au S de Banyo (Cameroun)
Authors: Koch Pierre
Published: June 2020

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

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

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

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

"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

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.
Sur une meuliere spherolithique du calcaire lacustre du Berry
Authors: Valensi Lionel
Published: June 2020

Describes a new type of spherulitic millstone which has been found among siliceous nodules from the Berry lacustrine limestone (Eocene) of the Saint-Amand region, Cher, France. It contains veins of opal (rather than fibrous silica).
Les terrains quaternaires littoraux des cotes de Provence occidentale
Authors: Blanc Jean J. , Bonifay Eugene
Published: June 2020

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

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.
Decapodes nouveaux de la partie ouest du Senegal
Authors: Remy Jean Marcel , Tessier Fernand
Published: June 2020

Describes decapods (including new species) from Cretaceous and lower Tertiary deposits of western Senegal, French West Africa.
La serie dahomeyenne de Takamba dans la boucle du Niger
Authors: Radier Henri
Published: June 2020

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.
La photographie aerienne au service de la geologie
Authors: Gandillot Jean
Published: June 2020

Discusses the value of aerial photographs in geology, citing specific examples from several regions. It is concluded that field work in general can be carried on much more efficiently when aerial photographs of the area are studied in advance.
Les ecailles de Macinaggio (Corse)
Authors: Laporte Jean
Published: June 2020

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

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

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

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

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

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

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.
Le Quaternaire marin du cap Corse [with discussion]
Authors: Ottmann Francois
Published: June 2020

Describes two marine Quaternary exposures along the coast of Corse cape on Corsica island, France, which contain an abundant, characteristically Tyrrhenian fauna.
Une coupe du Pinde meridional entre la Thessalie et l'Epire (Grece)
Authors: Aubouin Jean
Published: June 2020

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.
La deglaciation scandinave selon la chronologie De Geer
Authors: De Geer Ebba Hult
Published: June 2020

A review of present knowledge of the deglaciation of Scandinavia, as determined from varves. An extensive bibliography is appended.
Precisions nouvelles sur les ecailles de la couverture du massif d'Ambin
Authors: Goguel Jean
Published: June 2020

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.
De la subdivision du genre Hemicyon Lartet (carnassier du Miocene)
Authors: Ginsburg Leonard
Published: June 2020

Subdivides the genus Hemicyon (Miocene carnivore) into three distinct genera, including the new genera Phoberocyon and Plithocyon.
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

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

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

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

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

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.
Sur la presence du genre Kilianina dans le bassin de Paris
Authors: Aurouze Germaine , Bellon Jacques , Bizon Jean Jacques , Journel Claude
Published: June 2020

Describes details of the foraminiferal genus Kilianina on the basis of material from Jurassic strata encountered in borings in the Paris basin, France.
La geologie de Madagascar en 1956 et ses grands problemes
Authors: Besairie Henri
Published: June 2020

A summary of progress in geologic research in Madagascar during 1956.
Considerations nouvelles sur la stratigraphie du sud de Madagascar
Authors: Boulanger Jacques
Published: June 2020

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

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.
Signification paleogeographique des griottes devoniennes de la France meridionale
Authors: Ovtracht Andre , Fournie L.
Published: June 2020

The term "griottes" has been used loosely to describe carbonate rocks from the uppermost Devonian of the Pyrenees of southern France. Three types are distinguished among the Famennian griottes of the central Pyrenees, the Corbieres range, and the Montagne Noire--intraformational conglomerates, rocks with alternating limestone and shale layers showing evidence of submarine slumping during deposition, and more or less massive limestones. All gradations exist between these three main types. The griottes are variable in space as well as time. They are interpreted as representing deposition in a marine environment in which there was a tendency toward emergence, accompanied by minor slumping and local development of rocky reefs. In any case, they are not deep-sea deposits, as previously held.
Les ecailles de base de la nappe du flysch de l'Embrunais dans le bassin d'Embrun (Hautes-Alpes)
Authors: Debelmas Jacques , Latreille M.
Published: June 2020

Describes the Chateauroux and Chateau-Caleyere tectonic slices, Subbrianconnais in facies, and the Saint-Sauveur slice, Ultradauphinois in facies, at the base of the Flysch complex of the Embrunais nappe in the Embrun basin, Hautes-Alpes, France. In the Saint-Sauveur slice two unconformities are present, one of which is pre-Senonian (Mesozoic), the other pre-Nummulitic.
L'argile grumeleuse sur le loess, aux pentes des coteaux de rive gauche de l'Hers
Authors: Astre Gaston
Published: June 2020

A widely developed lumpy clay zone found on the slopes of the left bank of the Hers river and elsewhere in the Toulouse region, France, forms a distinct unit among the Quaternary formations of the region. It consists of material weathered from Oligocene marls, which has flowed and slumped on the loess which it overlies.
Valerien Agafonoff (1863-1955)
Authors: Malycheff Vera , Deicha G.
Published: June 2020

A biographic sketch of the Russian-born French soil scientist Valerian Agafonoff, and a list of his French writings.
Sur la genese des gites de fer du massif du Mouthoumet (Aude) (a propos d'hypotheses recentes)
Authors: Guitard Gerard , Pelissonnier H.
Published: June 2020

The siderite deposits of the Mouthoumet massif, Aude, France, are of metasomatic origin, like those of the Canigou district. Karstification during Tournaisian (Carboniferous) time occurred after mineralization, and therefore could not have been responsible for it.
Sur l'origine exogene des gites de fer et de manganese du massif du Mouthoumet (Aude)
Authors: Jaeger Jean Louis , Ovtracht A. , Routhier P.
Published: June 2020

Defends the conclusion that the iron and manganese deposits of the Mouthoumet massif, Aude, France, are of exogenic (rather than metasomatic) origin, noting in particular various stratigraphic, paleogeographic, and structural features of the massif which are of significance for an understanding of the genesis of the ores.
Trois exemples de reconnaissance hydrogeologique d'alluvions dans le departement du Jura
Authors: Reussner Alain , Caire Andre , Glangeaud Louis , Goguel Jean , Guillaume Marcel , Mautort Jacques de , Munck Fernand , Perrenoud Marie Jeanne , Ricour Jean , Stanudin Boris
Published: June 2020

Describes three ground-water surveys of alluvial zones in the department of Jura, France, which gave different results. At Orgelet and Clairvaux, the results of electric resistivity surveys (positive in the first case, negative in the second) were confirmed by drilling. At Tavaux, however, the geophysical results were not in complete agreement with the geologic data, largely because of complexities in the relations between resistant and conducting layers.
Presence de Tetralophodon longirostris dans le Vindobonien inferieur de Tunisie
Authors: Bergounioux Frederic Marie , Crouzel F.
Published: June 2020

Describes remains of the mastodon Tetralophodon longirostris from lower Vindobonian (Miocene) localities of Tunisia, and summarizes data on the distribution and migration of the species throughout Europe and of members of the genus throughout the world.
Contribution a l'etude des flores jurassiques d'Asie; II, Sur des coniferes nouveaux d'Arabie seoudite
Authors: Boureau Edouard
Published: June 2020

Describes two new conifers recovered from Liassic beds encountered in a deep boring at Riyadh, Saudi Arabia--Brachyphyllum karpoffii and B. multistemonium.
Les Estheria de la region d'Agades (Niger)
Authors: Defretin Simone , Joulia F. , de Lapparent A. F.
Published: June 2020

Describes two new species of Estheria from lower Cretaceous localities southwest of Agades, Niger, French West Africa. The enclosing continental lake deposits were probably formed under climatic conditions similar to those of the present, with alternating very wet and dry seasons.
Quelques applications des biofacies a l'etude stratigraphique et paleogeographique du bassin neogene du Bas-Chelif (Algerie occidentale)
Authors: Tempere Claude
Published: June 2020

The principal biofacies--continental, brackish, littoral, epineritic, infraneritic,and benthonic--are reviewed and applied to the formations of the late Tertiary basin in the lower Cheliff river region, western Algeria. Comparisons are made with Lowman's reference profile in the Gulf of Mexico. It is concluded that the isopach map reflects faithfully, although not necessarily quantitatively, the deformations which affected the bottom of the depositional basin.
Sur deux especes d'annelides tubicoles du Devonien armoricain
Authors: Pillet Jean
Published: June 2020

Describes two new species of tubicolous annelids from Devonian localities of the Armorican massif, France--Conchicolites devoniensis from Emsian deposits and Cornulites? andegavensis from upper Siegenian deposits. The genera Cornulites, Conchicolites, Cornulitella, and Kolihaia are reviewed.
Nouvelles observations sur un poudingue intercale dans la couche de fer silurien d'Halouze (Orne)
Authors: Courty Georges
Published: June 2020

In parts of the Halouze mine (Orne, France) the iron ore occurs as conglomeratic masses consisting of quartzose, dolomitic, or phosphatic pebbles cemented by red iron oxide. The pebbles are not much older than the ore and were deposited between episodes of iron deposition. The iron oxide was precipitated in a well-aerated, shallow, quiet Silurian sea. Siderite tends to replace the quartz pebbles.
Decouverte de Spirifer gwinneri Frech dans le Dinantien du Sahara occidental
Authors: Delepine Gaston G.
Published: June 2020

Describes several specimens of Spirifer gwinneri from Dinantian (Carboniferous) deposits of the Reggan region (Algeria) in the western Sahara, 2,000 kilometers west of the only locality from which it has previously been known. The accompanying fauna indicates that the age is definitely Visean.
Reanimation de magmas et interpretation de quelques particularites de leurs elements de premiere consolidation
Authors: Barrabe Louis , Deicha G.
Published: June 2020

Experimental melting of glassy residues entrapped in the quartz of volcanic rocks furnishes data of petrogenetic interest, on the one hand relating to the manner of formation of these inclusions and their eventual thermometric use, on the other, to their mechanical effect on the host crystals.
Sur le granite de Mont-Louis (Pyrenees-Orientales)
Authors: Autran Albert , Guitard G.
Published: June 2020

The granite of the Mont-Louis massif in the French Pyrenees is a supercrustal rock without deep roots, located between augen gneisses occupying the center of the eastern part of the massif and the Paleozoic cover. Its upper part is homogeneous; the lower part, heterogeneous and diffuse, has granitized the augen gneiss. The two phases of the petrochemical evolution of the granite involved the introduction of Si and Na and loss of Fe, Mg, Ti, and K followed by microclinization. In structure and petrochemical evolution, the Mont-Louis massif is analogous to the Querigut granite. This type of superficial granitization is related to intense granitization taking place at depth; both are lumped under the term "regional granitization". The superficial granitization produces relatively homogeneous bodies, whereas at depth formation of more varied granites closely associated with migmatites takes place.
Sur quelques lamellibranches du Devonien et du Carbonifere du bord nord du bassin de Tindouf et du Tafilelt
Authors: Freneix Suzanne
Published: June 2020

Describes pelecypods collected from Devonian and Carboniferous localities in the northern part of the Tindouf basin, western Algeria, and from the Tafilelt region, southern Morocco. Two are new species, Palaeoneilo jacquemonti and Posidoniella? ovalis.
Un Palmoxylon nouveau du Nummulitique de Provence
Authors: Grambast Nicole
Published: June 2020

Describes and discusses the affinities of a new species of fossil palm, Palmoxylon gignacense, from Ludian-Sannoisian (Tertiary) Nummulitic beds of the Apt region, Provence, France.
Decouverte d'une discordance dans le "Cambro-Ordovicien" du Soudan occidental (A.O.F.)
Authors: Dars Rene
Published: June 2020

The Cambro-Ordovician formations of the western Sudan region, French West Africa, consist of a lower schist-limestone marine series, a glauconitic marine series, and an upper sandy continental series. An unconformity, marked by the presence of a basal conglomerate, has been recognized at the base of the upper series; another may be present between the two lower series.