bluuebunny/crossref_metadata_2025_split huggingface dataset:
Paleogeographie devonienne et mineralisations ferrugineuses de Dielette (Manche) et plombo-zinciferes de Surtainville (Manche)
Authors: Pavillon Marie Jose 
Published: June 2020

Abstract
Marine clastic formations of Cambrian, Ordovician, and Silurian age in the Flamanville area of northwestern France were folded during the Caledonian orogeny into a series of broad anticlinal and synclinal folds with the tops of the anticlines emergent and undergoing erosion by early Devonian time. The earlier Devonian formations were formed by deposition of the detritus in the adjacent synclinal troughs. Later deposits formed after renewed subsidence show facies differences between the marine shallow-water areas of the anticlinal crests, the deeper water of the flanks, and the deepest water of the synclinal troughs. Ferruginous oolite beds occur in marine sandy shales in the northern part of the area, and veinlets of lead-zinc mineralization occur in the southern part. The minerals probably were deposited in the original sediments, and later metamorphosed by intrusion of the Flamanville granite whose contact-metamorphic effects are prominent. The iron mineralization probably was deposited in marine shallows, and the lead-zinc minerals in adjoining belts.
La serie aquitanienne de Millesimo (Italie, province de Savone)
Authors: Lorenz Claude 
Published: June 2020

Abstract
The Millesimo series of conglomerate and sandstone overlain by gray marl is transgressive upon the margin of the Ligurian Alps in the southern part of the Po basin. A fossiliferous zone in the marl contains large lepidocyclines and heterostegines. The fauna and the microfauna (notably miogypsinids and lepidocyclines) are lower and middle Aquitanian in age.
Un cephalopode remarquable de l'Hauterivien basal de la Drome; Himantoceras nov. gen
Authors: Thieuloy Jean Pierre 
Published: June 2020

Abstract
A new genus, Himantoceras n. gen., and three new species, H. trinodosum n. sp., H. acuticostatum n. sp., and H. collignoni n. sp., are described from southeastern France. The stratigraphic horizon from which these specimens were obtained is at the base of a thin bed of marl transitional between the Valanginian and the Hauterivian (lower Cretaceous).
Sur quelques Castorides du bassin d'Aquitaine
Authors: Bergounioux Frederic Marie , Crouzel Fernand 
Published: June 2020

Abstract
Fossil Castoridae, except for isolated fossil teeth, are little known in the Aquitaine basin of southwestern France. Recent discoveries at Sansan suggest a fairly large population, and a possible evolutionary relationship between Steneofiber viciacensis, S. depereti, and S. jaegeri involving a progressive simplification of the crown of molar teeth.
Stratigraphie du Paleogene des Karpates
Authors: Andrusov Dimitrij 
Published: June 2020

Abstract
The Paleogene stratigraphy of the Carpathian mountains is particularly complex because deposition of flysch in the region began in the lower Cretaceous, and during the Paleogene was predominant. Four principal facies of Paleogene formations are present. The foreland non-flysch facies, not folded, transgressive, and incomplete in sequence, lies on the north margin. In turn southward are the zone of Paleogene flysch, strongly folded and closely related to that of the Cretaceous; the Paleogene of the central western part of the region, transgressive upon a folded substratum (particularly the middle Cretaceous), but with flysch facies predominant; and the facies in Hungary and southern Slovakia that is neither folded nor flysch.
Le Cretace superieur et le Paleogene dans la dorsale calcaire aux abords meridionaux de Tetouan (Rif septentrional, Maroc)
Authors: Griffon Jean Claude , Magne J. , Sigal Jacques 
Published: June 2020

Abstract
The limestone dorsal of the northern part of the Rif mountains near Tetuan, Morocco, exposes Permian clastics, Triassic dolomite, Jurassic and lower Cretaceous limestone, upper Cretaceous to Eocene marl, transgressive upper Eocene conglomerate, and Oligocene flysch. The microfauna of the upper Cretaceous and the Paleogene formations are particularly useful in correlations. Major tectonic movements occurred in the Miocene.
La foliation des schistes cristallins: etude de sa genese a l'aide de quelques exemples
Authors: Grolier Jacques , Vialon Pierre 
Published: June 2020

Abstract
The origin and significance of foliation in schists, and the relationship to schistosity and bedding are discussed in detail. Schists of the Central Massif of southwestern France and the Dora-Mara massif of the Italian piedmont are the basis of discussion. Isoclinal folding of strata is an important factor involved.
Constitution de quelques roches volcaniques permiennes de la Sierra del Cadi (Pyrenees catalanes)
Authors: Morre Nicole , Thiebaut Jean 
Published: June 2020

Abstract
The Permian volcanic rocks of the Sierra del Cadi in the Catalonian Pyrenees of northeastern Spain are intermediate in chemical composition. Some of them are partly devitrified hyalodacite and hyaloandesite similar to the volcanic rocks of the Midi d'Ossau peak nearby. Albitophyre occurs locally, with a hyaloalbitophyre facies in one locality. The eruptive rocks of the Sierra del Cadi exhibit spilitization resulting from pneumatolytic and hydrothermal agents.
Sur la nature des 'dykes' de quartz jalonnant le front de certains grands massifs de roches ultrabasiques en Nouvelle-Caledonie et sur ses consequences
Authors: Avias Jacques 
Published: June 2020

Abstract
Numerous dikes or 'quartz fronts' characterizing the borders of ultrabasic massifs of the 'recouvrant' type in New Caledonia are serpentinite breccias cemented by quartz. They are localized at serpentinite contacts.
La zone du Plan d'Aups dans sa region type, la Sainte-Baume (Var)
Authors: Fabre-Taxy Suzanne , Philip Jean 
Published: June 2020

Abstract
The Plan d'Aups ecozone in the Sainte-Baume massif of southern France is known to be Santonian (upper Cretaceous) from beds of rudistids intercalated in the formation. These beds grade laterally into Santonian sandstones.
Analyse palynologique de quelques echantillons de marne a lignite (Oligocene superieur) du bassin de Bagnasco (Italie, prov. de Cuneo)
Authors: Gruas-Cavagnetto Carla 
Published: June 2020

Abstract
The Oligocene of the Bagnasco basin in the Piedmont of northwestern Italy is poor in microflora in general, but pollen spores from a bed of lignitic marl indicate the presence of a swampy forest of Taxodiaceae and Cupressaceae surrounded by mountainous terrain with a predominantly pine forest.
Caracteres petrographiques de l'ophite de Vebre (Ariege)
Authors: Riotte Ch , Thiebaut Jean 
Published: June 2020

Abstract
Petrographic analysis of the ophite outcrop on the right bank of the Ariege river, below Vebre, France, shows that the rock is rich in epidote and exhibits pegmatoid differentiation. Three rock types are distinguished--common ophite with variable amounts of epidote; ophite with phlogopite; and pegmatoid rocks with orthoclase. The results of four chemical analyses indicate that the Vebre ophites were affected by pneumatolysis during crystallization from a saturated basaltic magma. The pneumatolysis caused the crystallization of hornblende and, in a later phase of potassium enrichment, the superimposition of orthoclase in the pegmatoid plagioclases and the phlogopite in the hornblende crystals of the ophite.
Observations sur les terrasses du moyen-Euphrate
Authors: Heinzelin Jean de 
Published: June 2020

Abstract
Four Quaternary formations are exposed upstream from the site of the future dam at Tabqa on the Euphrates (Syria). The Dibsi formation presents extensive pedogenesis at its summit which suggests that it is the oldest of the four formations. The second level is represented by fluvial terraces, the Shajara formation. The Mureibat formation consists of fluvial terraces below the Shajara formation. The Mureibat is considerably older than the pre-ceramic Neolithic and is attributed to the end of the upper Pleistocene. The fourth formation is the present alluvial plain which has evolved since the Neolithic. No fossiliferous beds were encountered. Modifications of the hydrographic basin may be the result of Recent tectonic disturbances in the Middle East.
Sur la structure en coussins des volcanites basiques de la region de Cumbres-Mayores (Huelva, Espagne)
Authors: Bard Jean Pierre 
Published: June 2020

Abstract
Petrographic and structural analyses of the pillow lavas in the Cumbres-Mayores spilitic complex show that they belong to two different basic volcanic rock types representing different conditions of emplacement. The first type exhibits decreasing crystallinity toward the center of the mass, radial disposition of amygdules, a clastic envelope, and a clay-sand cement between the pillows. This suggests that this type of pillow structure was formed in an unconsolidated mud. The second type has fluid structures parallel to the contours of the pillows, ovoid lithophysae, clastic aureoles and very little or no cement. These pillows were probably formed in open water, rolled on the sea floor, and massed in piles.
Etude paleontologique et sedimentologique du Bartonien inferieur (Auversien) dans la localite-type du Guepelle (Seine-et-Oise)
Authors: Pomerol Charles , Damotte Renee , Ginsburg L. , Montenat Christian , Lorenz Jacqueline , Toutin Nadege 
Published: June 2020

Abstract
Recent detailed paleontologic and sedimentologic studies of the type locality of the Auversian at Guepelle, France, showed a complete succession of beds from the upper Lutetian to the Marinesian, characterized by Avicula defrancei in sandstone blocks ascribed to the Mortefontaine formation. A sequence of five facies is recognized which is mainly composed of sandstones with a rich and well-preserved fauna, including 200 molluscan species and some ten mammalian species. A detailed list of the fauna collected is given together with a lithologic description of the Guepelle locality.
Le gisement eocene du cap d'Ailly (pres de Dieppe, Seine-Maritime)
Authors: Bignot Gerard 
Published: June 2020

Abstract
A study of seven sections along the Ailly cape, France, permits recognition of five Eocene formations. The upper Thanetian is represented by marine sands with chert and sandstones; the Ailly lacustrine limestones are terminal Thanetian. A third formation, here designated the Caude-Cote annelid sands and clays, overlies the Thanetian marine sands and is thought to be of terminal Thanetian age. The Sparnacian is represented by lignitic clays below and sands and shales rich in ostracods and mollusks above. The Varengeville formation, which is the lowermost Cuisian formation, is represented by four lithofacies whose sediments and fauna suggest emerging conditions. Correlations with the Paris and Belgium basins indicate that the Ailly gulf was isolated from other regions, and was subjected to an erosional period during the Cuisian.
Connaissances nouvelles sur la structure de la Beauce
Authors: Desprez Noel , Megnien Claude 
Published: June 2020

Abstract
This preliminary report--part of a detailed hydrologic study--based on isopach contours plotted from nearly 900 cores gives an outline of the subsurface Tertiary stratigraphy and structures of Beauce (France). The isopachs make it possible to recognize the limits of the Burdigalian, upper Aquitanian limestones, the lower Aquitanian molasse, the lower Stampian Fontainebleau sands, the upper Stampian limestones, and the Sannoisian and Eocene lower lacustrine limestones. Structural features deduced show a great variation in the thickness of the lacustrine series.
Associations minerales, subfacies et types de metamorphisme dans les micaschistes et les gneiss pelitiques du massif du Canigou (Pyrenees-Orientales)
Authors: Guitard G. 
Published: June 2020

Abstract
The progressive metamorphism of Canaveilles series (Cambrian) pelitic sediments, in the Canigou massif of the eastern Pyrenees, was studied by the systematic analysis of the mineral associations and application of the phase rule. Eleven subfacies--muscovite-chlorite to sillimanite-microcline--are described and grouped into suites. The sillimanite-microcline subfacies occurs locally at the contact with anatectic granites, frequently masked by the development of potassium metasomatites resulting from the percolation of postmagmatic solutions through the country rock. Three types of metamorphism are recognized. The types are indicative of increasing pressure from west to east at the time of the Hercynian metamorphism.
Nouvelle contribution a l'etude des algues calcaires du Carbonifere saharien
Authors: Chanton Nicole 
Published: June 2020

Abstract
Five species of calcareous algae (Dasycladaceae), two of which are new--Anthracoporella menchikoffi, Ungdarella maslovi--are described from the Colomb-Bechar and Polignac basins. The ten genera now known from the Sahara basins are important primarily as ecologic and paleogeographic indicators; of the ten, only Koninckopora is a good index fossil.
Contribution a l'etude stratigraphique du Lias des Dolomites italiennes (Italie du nord)
Authors: Cros Pierre 
Published: June 2020

Abstract
The gray limestone facies of the Italian Dolomites is confined to the lower Liassic and rests unconformably on the last Triasina-bearing beds of pre-Liassic age. Middle Liassic crinoidal limestones overlie the gray limestone and are overlain by upper Liassic chemical sediments. The only evidence for upper Liassic age strata is the presence of the ammonites Harpoceras discodes and Hammatoceras insigne. For the most part, the upper Liassic was a period of nondeposition.
Les gisements de fluorine de la Provence cristalline (Maures, Tanneron, Esterel)
Authors: Solety Pierre 
Published: June 2020

Abstract
The fluorite deposits of the Maures-Tanneron-Esterel region of southeastern France generally occur as groups of parallel east-west-trending veins. Most of them are closely associated with east-west-trending structural lineaments of Permian age, but are also related to north-south-trending mylonized zones in the basement rocks of the region. Mineralization took place in two stages, an early barite-fluorite stage and a later quartz stage with or without sulfides. These deposits probably originated in the late Permian during the final phases of acidic magmatism.
Le stratotype de l'Aquitanien (Mayer-Eymar, 1857-1858)
Authors: Szoets Endre 
Published: June 2020

Abstract
The stratigraphic position of the type Aquitanian (Gironde, France), variously considered as Oligocene or Miocene, has been established as basal Miocene. Although Mayer-Eymar first employed the term Aquitanian in 1853 without defining a type section, he defined the type section in 1857 (1858) as the beds exposed between the Bernachon and Eglise mills on the Saint-Jean d'Etampes brook. These beds, which are definitely lower Miocene, must be used as the standard for age assignments elsewhere in the world.
Complement a l'etude de la faune des rongeurs de Sansan; les glirides
Authors: Baudelot Sabine 
Published: June 2020

Abstract
Representatives of the Gliridae, a little known family of Miocene rodents, have been found at Sansan in the Aquitaine basin of southwestern France. A new genus and four species are described. They are Myoglis n. gen., M. larteti n. sp., Muscardinus sansaniensis, Glirulus miocaenicus n. sp., and Dryomys hamadryas. These fossils may be important indicators in the biochronology of the Miocene.
Apercu sur la stratigraphie de l'Eubee moyenne (Grece)
Authors: Guernet Claude 
Published: June 2020

Abstract
The stratigraphy of the island of Euboea (Greece), an area unusually well suited to investigation of the Pelagonian zone of the Hellenides, is less well known than the structure. The formations of central Euboea are carbonaceous shales of Carboniferous age, Permian black limestones overlain by diabase and spilite, Triassic and Jurassic limestones and ophiolites, upper Cretaceous basal conglomerate, limestone, and flysch, Miocene marly limestone (overlain by lagoonal and lacustrine deposits in the Kimy and Gides basins), and Pliocene conglomeratic deposits.
Nouveau gisement de pegmatitoides a la Sagnette (Cantal)
Authors: Vatin-Perignon Nicole , Goer de Herve Alain de 
Published: June 2020

Abstract
The pegmatoids of Sagnette (Cantal, France) represent an ultimate stage in magmatic differentiation. They occur in the uppermost zone of a basanite sill as veins and stringers of leucocratic rocks, characterized by a gabbroic facies. Alkalinity and acidity values are higher than those of adjacent basanites. The rocks are intermediate between theralites and essexites.
Les granites a muscovite du mont Pilat (Massif central)
Authors: Ravier Jean , Chenevoy Maurice 
Published: June 2020

Abstract
Muscovite granites of the Pilat massif (French Central Massif) can be divided into two large groups. Those belonging to the first group appear in the so-called metamorphic series of the Pilat massif and are associated with granulites of rhyolitic origin from which they were directly derived by anatexis. Those of the second group are doubtless of similar origin, although this is more difficult to establish. All these granites have a constant chemical composition. Their magmatic paragenesis includes, in addition to quartz, potassic feldspar and albite, some biotite, a little muscovite, and occasionally andalusite. The data seem to indicate crystallization under conditions of low pressure and temperatures less than 700 degrees C. Subsequently, secondary muscovitization developed at the expense of andalusite. The muscovite granites of the Pilat massif do not present a mineralization sequence. Their mode of formation was quite different from that of the late hololeucocratic granites resulting from a differentiation of granitoid assemblages.
Sur la limite siluro-devonienne dans le Cotentin
Authors: Robardet Michel 
Published: June 2020

Abstract
On the basis of newly discovered graptolite beds in the Cotentin peninsula (France), certain outcrops can be precisely dated as Silurian. The shales of Hautmesnil represent the upper part of the lower Valentian (lower Silurian). Nodular shales of Saint-Sauveur-le-Vicomte have yielded Monograptus ultimus and are assigned to the Ludlovian (upper Silurian). The entire Silurian-Devonian series has an extent which is of greater importance than was previously thought. No evidence of the Gedinnian (Devonian) was observed, however.
Les trachytes du Mont-Dore et du Cantal septentrional et leurs enclaves
Authors: Brousse Robert , Varet Jacques 
Published: June 2020

Abstract
The trachytes of Mont-Dore and the environs of Menet, in the Cantal [Central Massif of France] are described and analyzed, along with their homogeneous inclusions and basement xenoliths. Two petrographic groups are identified within the trachytes; one is undersaturated and is allied to the phonolites, while the other is of the pantellerite type. The discussion of these latter rocks shows that they were derived from a trachytic magma and are sharply distinct from rhyolites.
Caracteres petrographiques des tufs viseens du Puix-Gy (Territoire de Belfort)
Authors: Fourquin Claude 
Published: June 2020

Abstract
A very important formation of tuffs is reported within the volcanic-detrital Visean (Carboniferous) forming the first southern foothills of the Ballon d'Alsace massif (southern Vosges [France]). Modal analyses indicate notable variations in the composition of these tuffs, some of them being systematic. The variation of the porphyricity index as a function of sample distribution shows that their center of extrusion may be beneath the Permian of the Giromagny basin. Chemical and mineral composition place these rhyodacitic tuffs at the acidic end of differentiation of the supersilicic series to which the volcanism of the Culm of the southern Vosges is referred.
Etude petrographique des laves carboniferes de la region de Figeac (Lot)
Authors: Morre Nicole 
Published: June 2020

Abstract
Carboniferous volcanic rocks of the Figeac-Planioles region (Lot [France]) belong to a number of distinct petrographic types: trachytes, hyalotrachybasalts, and hyalorhyobasalts with orthopyroxene and glasses of varied compositions. The common characteristic of all these rocks is a great enrichment in potassium.
Sur l'age des principaux traits structuraux du Diois et des Baronnies
Authors: Flandrin Jacques 
Published: June 2020

Abstract
The structure of the Diois and Baronnies [ranges] results from pre-Santonian, pre-Eocene, pre-Oligocene, pre-Miocene, and post-Miocene deformation. All the folds and overthrusts of east-west orientation, responsible for the main orogenic features of these two regions, result, whatever their age, from orogenic activity of provencal origin while the large north-south and nearly north-south faults that subdivide these folds arise from alpine thrusting. Structurally, the Diois and Baronnies ranges are strictly provencal ranges that are only related to the Subalpine ranges by their final north-south deformation.
Sur la presence d'une formation conglomeratique a faune d'age tithonique superieur dans la region de Marignac-en-Diois (NE de Die, Drome)
Authors: Le Hegarat G. 
Published: June 2020

Abstract
The discovery of this new deposit [Marignac-en-Diois, Drome, French Prealps] allows establishment for the first time of accurate correlations at the level of the Tithonian-Berriasian [Jurassic-Cretaceous] transition between a locality in Ardeche and a Vocontian deposit with the aid of ammonites collected strictly in place.
Le Barremien et ses limites dans le centre de la montagne de Lure (Basses-Alpes)
Authors: Busnardo Robert , Foury G. 
Published: June 2020

Abstract
Some stratigraphic and detailed paleontologic observations, made concerning the famous Barremian deposits of Combe-Petite and Morteiron [Lure mountain, Basses-Alpes, France], lead to the following conclusions: the deposits mentioned represent specialized biotopes and are very localized; the Barremian in the middle of Lure mountain is of fairly small thickness, variable and of very diverse facies, with locally some interstratified glauconitic breccias, hard-ground, etc.; finally the main limestone mass of the summit of Lure belongs in large part to the Hauterivian [lower Cretaceous].
Note preliminaire sur la paleogeographie du Tithonique des chaines subalpines
Authors: Remane Juergen 
Published: June 2020

Abstract
The stratigraphy and paleogeography of the Tithonian (upper Jurassic) dolomitic limestones and redeposited breccias of the French Subalpine ranges are outlined. The dolomitic limestones are common throughout the Tithonian, being most highly developed in the northwestern part of the Chartreuse massif. They are of diagenetic origin. The redeposited breccias, most common in the lower Tithonian, represent deep-water sediments and are thickest at the center of the Vocontian trough. The origin of the reworked components is not known.
Les facies du Jurassique terminal dans les chaines subalpines meridionales au sud et a l'est de la Durance; leur repartition geographique
Authors: Tempier Claude 
Published: June 2020

Abstract
The study of the different facies of the terminal Jurassic (Portlandian) and of their geographic distribution makes possible a rough estimate of the form of the basin of sedimentation. To the south and to the east appear shallow shelves which extend from Moustier-Sainte-Marie to Nice and to the border of the Mercantour [massif], while the region between Sisteron and Puget-Theniers must show a fairly great depth, as emphasized by the importance of submarine slides which have carried toward the center of the basin constituents coming from the shelves.