bluuebunny/crossref_metadata_2025_split huggingface dataset:
Considerations sur l'evolution des hippuritides d'apres des materiaux des Corbieres et de l'Ariege
Authors: Senesse Pierre 
Published: March 2020

Abstract
A detailed examination of rudistid pelecypods belonging to the family Hippuritidae, based on material collected from Cretaceous localities in the Corbieres mountains and the Ariege region, France. Certain forms are recognized as intermediate in evolution between Hippurites primordialis and Vaccinites grossouvrei, leading to the creation of a new genus, Pseudovaccinites. Many Hippurites species, as well as V. grossouvrei, acquire some characteristics of Pseudovaccinites in the course of their phylogenetic development.
La sedimentation a l'aval du graben de l'Amazone
Authors: Pimienta Jean 
Published: March 2020

Abstract
The Amazon basin is a graben that has been filled since Carboniferous time by essentially continental sediments. Near the mouth of the river, deposition has accompanied or produced variations in the coast line. At present the sea is advancing after a withdrawal, as it did in the upper Miocene. Earlier shifts of the coast line, although clear, have not been dated. At least in part, retreats of shore lines are due to deposition resulting from periodic denudation of the forest in the hinterland.
Les echinodermes permiens du Djebel Tebaga (extreme sud tunisien)
Authors: Termier Henri , Termier G. 
Published: March 2020

Abstract
Describes echinoderms from Permian deposits of the Tebaga massif in southernmost Tunisia. These include stem and calyx fragments of crinoids and isolated plates and radioles of the echinid genus Archaeocidaris.
Essai sur l'orogenie alpine en France
Authors: Gidon Paul 
Published: March 2020

Abstract
The theory which attributes orogenic processes to the effects of subcrustal erosion by magmatic currents is found to give a satisfactory explanation of the Alpine orogeny in France. Its application to an analysis of the Tertiary history of the Alpine structure results in a structural plan which corresponds to the present distribution of the tectonic units.
Les gres de Mouka-Ouadda, en Oubangui-Chari oriental
Authors: Bessoles Bernard , Delafosse R. 
Published: March 2020

Abstract
The Mouka plateau in eastern Ubangi-Shari, French Equatorial Africa, is composed of two sandstone complexes--a basal group of conglomerates, conglomeratic sandstones, and argillites, and a complex of white kaolinitic sandstones. The sequence is mainly fluviolacustrine in origin, but the upper beds may be eolian. Fossil evidence is lacking, but data on facies indicate analogies with Cretaceous beds of the Continental intercalaire formation and Kwango deposits elsewhere.
Sur la metallogenie de la region d'Akjoujt (Mauritanie)
Authors: Vincienne Henri 
Published: March 2020

Abstract
The metallic deposits of the Akjoujt region in Mauritania, French West Africa, are syntectonic and represent a special type of high-temperature mineralization. Without noticeable break, the mineralization consists on the one hand of a rich paragenetic sequence of minerals derived from basic rocks, which had been mobilized and concentrated by metasomatism associated with migmatization, and on the other of a pneumatolytic paragenetic sequence of acid pegmatite character, apparently derived from the migmatites themselves. The Guelb Moghrein and Tabrinkout deposits represent the end members of this mineralization, the former related mainly to the migmatites, the latter to the pegmatites.
Une tourbiere littorale, Colleville-s-Mer (Calvados)
Authors: Elhaie Henri , Sparks B. W. 
Published: March 2020

Abstract
Pollen analysis of a coastal peat deposit at Colleville-sur-Mer, Normandy, France, and examination of the molluscan fauna of interstratified beds, shows that the peat is postglacial in age. Discontinuity of the peat and interbedded layers is due to slumping and sliding of calcareous mud derived by alteration of Jurassic Bradfordian deposits overlying Vesulian clays.
Existence d'une serie cretacee allochtone dans la region occidentale du Parnasse (Grece)
Authors: Celet Paul 
Published: March 2020

Abstract
There are two distinct Cretaceous series in the western Parnassus massif in Greece. The Parnassus series corresponds to a zone of shallow calcareous sedimentation, which was emergent for a considerable period of time, during which bauxites were formed. The Jerolekas series is characterized by detrital material derived from the Pelagonian massif and contains flyschlike zones. It constitutes an allochthonous tectonic unit overthrust from the east on the Parnassus series.
Contribution a la geologie des gisements de thorianite a Madagascar
Authors: Brenon Pierre 
Published: March 2020

Abstract
Thorianite occurrences of southern Madagascar are found in diopside pyroxenites, plagioclasites, or marbles of the Tranomaro group in the Androyen series of the Precambrian basement complex. The mineralization shows very few features in common with the phlogopite mineralization of the Ampandrandava group, but both were probably contemporaneous. Origin of the thorianite is most simply and logically explained as due to precipitation of thorium hydrate in the magnesian marly-limy sediments which became the rocks of the Tranomaro group.
Le gisement villafranchien de l'Ain Brimba (Sud-Tunisien) et sa faune
Authors: Arambourg Camille , Coque R. 
Published: March 2020

Abstract
Describes the mammalian fauna and stratigraphic position of a new Villafranchian bone deposit at Aien Brimba in southern Tunisia. The locality extends the known area of occurrence of the Villafranchian fauna and is important for the study of the early Quaternary of north Africa.
Sur l'age de la phase tectonique "antesenonienne" a l'W du Devoluy (Drome)
Authors: Mercier Jacques 
Published: March 2020

Abstract
In the synclinal zones west of Devoluy, France, the Senonian (Cretaceous) rests transgressively and discordantly on a system of eroded folds trending east-northeast-west-southwest. The sedimentary hiatus occurs between the upper (but not uppermost) Cenomanian and the Santonian in one of the synclines, and between the terminal Cenomanian and the Turonian (very probably upper Turonian) in the other. At present the most precise date that can be assigned to the major tectonic phase responsible for the approximately eastwest folds is lower to middle Turonian.
Grandes lignes de la structure des Corbieres orientales
Authors: Barrabe Louis 
Published: March 2020

Abstract
The broad structural features of the eastern Corbieres range, France, are outlined as background for the 1958 field excursion to the eastern Pyrenees by the Societe Geologique de France. The Oligocene Narbonne basin, the nappe of the eastern Corbieres and its southward prolongation, the Jurassic and Cretaceous plateaus of Pla del Val and Perillos, and the Tuchan region are described briefly.
Le plutonisme sialique, ses relations avec le metamorphisme dans les Pyrenees orientales et centrales
Authors: Glangeaud Louis 
Published: March 2020

Abstract
Remelting of sialic material at the level of the deepest gneisses is considered responsible for formation of the basal parts of post-tectonic granitic plutons of the Pyrenees. In upper zones the genetic process may terminate in subvolcanic or volcanic phenomena. As they require a complex interplay of independent processes for their formation, such plutons are less common than metamorphic zones and migmatized deep layers.
Donnees nouvelles sur le Nummulitique pyreneen
Authors: Mangin Jean Philippe 
Published: March 2020

Abstract
Details of the stratigraphy of the Nummulitic (Tertiary) of the south flank of the Pyrenees (Spain) are reviewed, and the history of the range during that time is outlined. Preliminary orogenic movements occurred in the lower Lutetian; the major folding took place at the end of the Oligocene or the beginning of the Miocene.
Etude tectonique du massif de la Loube (Var)
Authors: Mennessier Guy 
Published: March 2020

Abstract
The structure of the Loube massif in Var, France, is typical of the ranges of Provence. The Jurassic cover is divided into a mosaic of independently dislocated segments, reflecting the effects of recurrent movement of basement structures. Development of the mosaic structure and east-west folding in the Cretaceous were succeeded by overthrusting and deformation in the Lutetian-Bartonian (Eocene), with an intervening period of erosion.
Observations nouvelles sur le "Cambro-Ordovicien" du plateau mandingue occidental (A.O.F.)
Authors: Dars Rene , Sougy J. , Vogt J. 
Published: March 2020

Abstract
The stratigraphic column of the western part of the Mandingue plateau (Soudan), west Africa, is similar to that of the Kayes region. Study of sections at several localities confirms the erosional unconformity in the Cambro-Ordovician previously identified in the Kayes region and shows that the Ordovician is less extensively developed than previously mapped. The argillaceous-calcareous conglomerate in the lower part of the sequence is probably a tillite.
Sur l'identite des formations sedimentaires de la region de Kiffa et du Falemien de Selibabi (Mauritanie)
Authors: Bense Claude 
Published: March 2020

Abstract
The relationships between the Falemian deposits of the Selibabi region and the sedimentary formations of the Kiffa region, both in Mauritania, have been investigated. The formations were found to be similar. The Falemian deposits are the folded and metamorphosed equivalent of Paleozoic deposits to the east, and are not Precambrian. The Selibabi granites are therefore considered Hercynian (late Paleozoic).
Observations sur les recifs coralliens du sud-ouest de Madagascar
Authors: Battistini Rene 
Published: March 2020

Abstract
The southwest coast of Madagascar is bordered by a fringing coral reef which locally tends to become a barrier reef. Its form can be explained as the combined product of erosion, together with other present-day coastal processes, and secondary eustatic and tectonic influences. The most frequent transverse zoning is that characteristic of a reef battered by strong oceanic surf.
Madreporaires rauraciens et riviere quaternaire de Pintheville (Meuse)
Authors: Basse Eliane 
Published: March 2020

Abstract
Due to their mechanical resistance, fossil corals are preserved as pebbles in Quaternary river alluvium and thus form markers by means of which the former course of streams can be traced. The Quaternary drainage of the Pintheville area, France, is reconstructed by tracing the source of madrepore-bearing pebbles in the Quaternary alluvium.
La prospection petroliere dans le perimetre de Dammartin (Seine-et-Marne)
Authors: Tilloy Robert 
Published: March 2020

Abstract
Describes petroleum exploration and the production obtained to the end of May 1959 in the Coulommes and Vaucourtois structures in the Dammartin region, France. Both the Jurassic and lower Cretaceous formations traversed by the borings show lateral variations in thickness, indicating deposition in an unstable zone.
Note sur les fontaines salees de Saint-Pere-sous-Vezelay (Yonne)
Authors: Horon Octave , Megnien C. , Soyer R. 
Published: March 2020

Abstract
A geologic, geophysical, and hydrogeologic study of the area in which the Saint-Pere-sous-Vezelay saline springs are located, in the Cure valley, France, shows that their emergence is controlled by transection of a fissured north-south fault zone of the Morvan massif, along which the waters percolate, by a transverse fault north of which impermeable Jurassic marls are present.
Recherches sur le developpement du squelette chez les madreporaires
Authors: Alloiteau James 
Published: March 2020

Abstract
A suitable technique necessary for study of the ontogeny of fossil madrepores is worked out on the basis of a study of the development of the skeleton (manner of insertion of the radial elements). More than in any other invertebrates, in the madrepores the process of formation of all the elements of the skeleton faithfully reflects ontogeny. It is too soon to establish general laws, but in none of five species studied in detail does the development take place according to the Milne-Edwards law.
Quelques apercus sur la paleontologie evolutive en France avant Darwin
Authors: Bourdier Franck 
Published: March 2020

Abstract
A review of pre-Darwin concepts of evolution in France. As early as 1724, B. de Maillet attempted to explain the formation of rocks and topography by "present causes", forming the basis of the concepts of Buffon, Lamarck, Constant Prevost, and Lyell which assumed a great age for the earth's crust, a premise which was a prerequisite for the hypothesis of evolution. Saint-Hilaire, from 1825-1838, was probably the first to establish the existence of species intermediate between extinct and living forms, and to draw conclusions from this in favor of Lamarck's evolutionary theories. A concept intermediate between immutability and evolution was developed with Agassiz's "progressive creation", the continuous development of more and more perfected forms.
La grotte de la Masque (Vaucluse); station paleolithique avec rhinoceros de Merck
Authors: Lumley Henry de 
Published: March 2020

Abstract
Rhinoceros (Dicerorhinus mercki) foot bones have been found in the Masque cave (Vaucluse, France) along with human remains and Paleolithic artifacts. The bones are described and compared with those of Rhinoceros tichorhinus. Whether they date from the end of the Riss-Wuerm interglacial or the very beginning of the Wuerm could not be determined.
Etude de Ptycholepis bollensis, poisson du Lias superieur de l'Yonne et du Wurtemberg
Authors: Wenz Sylvie 
Published: March 2020

Abstract
Describes the fossil fish Ptycholepis bollensis, on the basis of material from upper Liassic localities of Yonne (France) and Wuerttemberg (Germany), pointing out the evolution of the jaw and reduction of the preoperculum. Relationships with the holosteans and the paleoniscids, particularly the Triassic paleoniscid Boreosomus, are discussed.
Sept coupes a travers le massif de gneiss de l'Aston (Pyrenees de l'Ariege)
Authors: Destombes Jean Paul , Raguin E. 
Published: March 2020

Abstract
Discusses the stratigraphy of Paleozoic formations framing the Aston massif in the Pyrenees of Ariege, France, and the petrographic facies of the gneisses constituting the massif. Seven cross sections are given. The results show a lateral gradation from the Paleozoic formations to the gneisses. The position of the augen gneisses is not yet clear. The gneiss massif as a whole is a relatively flat, northward-dipping structure, which plunges rather abruptly at its north edge. To the west, it forms a gentle syncline.
Les peridotites de Conakry et du Kaloum (republique de Guinee) et leur serpentinisation
Authors: Legoux Pierre 
Published: March 2020

Abstract
Several stages of serpentinization are recognized in the peridotites (dunites with some wehrlitic dunites) forming the substratum of the Kaloum peninsula and the Conakry area in the Republic of Guinea. The rocks are described, the different minerals recognizable under the petrographic microscope are listed, and the problems of serpentinization and the peridotite magma are discussed. The peridotites may represent extensions of the rocks of the Kakoulima massif; if so, they constitute a dike of about the same scale as the Great Dyke of Rhodesia.
Distillations et condensations fractionnees de fluides geochimiques d'origine profonde
Authors: Deicha Georges A. 
Published: March 2020

Abstract
The relations between volatile constituents and water during crystallization of solutions of deep-seated origin are studied in the light of observations on liquid and gaseous inclusions, both primary and secondary. Comparison with the CO &lt;sub&gt;2&lt;/sub&gt; /H &lt;sub&gt;2&lt;/sub&gt; O equilibrium diagram shows that a homogeneous fluid mixture of CO &lt;sub&gt;2&lt;/sub&gt; /H &lt;sub&gt;2&lt;/sub&gt; O would break down into a liquid and a gas phase as temperature and pressure decrease. The presence of salts lowers the solubility of the gas in the water but does not seem to have any qualitative effect.
Presence d'un Dictyophyllum dans la flore molteno du Basutoland (Afrique australe)
Authors: Fabre Jean , Greber C. 
Published: March 2020

Abstract
Describes Dictyophyllum ellenbergi n.sp. from the flora of the Molteno beds at Morija and other localities in Basutoland, southern Africa. Other elements of the flora are reported. This is the first known Dictyophyllum occurrence in Africa; it shows that beginning with the Triassic, the floras of the world became unified and argues against the concept of a flora which was unique in Gondwanaland.
Le massif du Folat-Deveze (Herault) et ses satellites filoniens
Authors: Carron Jean Paul 
Published: March 2020

Abstract
The Folat-Deveze massif in Herault, France, has been studied as an example of the emplacement and evolution of a microgranite massif and its satellites, some of which are typically rhyolitic. The zoning can be explained by more or less rapid cooling of a syntectonic magma that seems to have assimilated material at depth which was mainly calcareous. Subsequent recrystallization, probably related with a phase of mineralization, produced the specific petrographic features of the massif, which approach those of true granites.
Metamorphismes et granitisations en liaison avec l'evolution orogenique en Bretagne meridionale
Authors: Cogne Jean 
Published: March 2020

Abstract
The broad outlines of the structure and metamorphic evolution of southern Brittany, France, are outlined. There were two metamorphic cycles, Precambrian and Hercynian, each subdivided into a preorogenic phase of ectinite formation and a synorogenic phase of metasomatic granitization. Differences in the form and structure of the Hercynian massifs represent differences in tectonic conditions at the time of formation. All the granites belong to the same family, from the anatectic granite to the surface microgranites. Three stages can be distinguished in the tectonic history of the Hercynian range on the basis of genetic relationships of the granites.
Sur le Tithonique et le Cretace inferieur dans la region de Huescar (province de Grenade, Espagne)
Authors: Foucault Alain 
Published: March 2020

Abstract
A section about six kilometers northwest of Huescar, in Granada, Spain, shows very steeply dipping Tithonian and Berriasian (Jurassic) limestone beds, succeeded by an essentially marly series with pyritic ammonites dated as lower and upper Valanginian, lower and middle-upper Hauterivian, lower Barremian, and upper Barremian-Bedoulian (Cretaceous). The Cenomanian is also present, but its exact stratigraphic position and relationships have not yet been determined.
Contribution a l'etude du Gothlandien du Sahara; bassins d'Adrar Reggane et de Fort-Polignac
Authors: Remack-Petitot Marie Louise 
Published: March 2020

Abstract
Certain details of the Gotlandian (Silurian) stratigraphy of the Sahara have been clarified on the basis of a rich graptolite fauna collected from borings and sections in the Reggane and Fort-Polignac basins (Algeria). It is established that datable lower Llandoverian beds are absent, and that the sea which invaded the whole Sahara since middle Llandoverian time was epicontinental in character.
Remarques preliminaires sur quelques formations du sud de la Skopska Crna Gora (Macedoine yougoslave)
Authors: Rollet Michel 
Published: March 2020

Abstract
Both metamorphic and sedimentary formations outcrop in the southern part of the Skopska Crna Gora massif north of Skopje (Yugoslavian Macedonia). The metamorphic rocks include amphibolites, biotite-muscovite gneisses, quartzites, and marbles. The sediments are Campanian-Maestrichtian (Cretaceous) limestones transgressive on the metamorphics, and Flysch deposits whose basal beds are Maestrichtian.
La geologie de la region montagneuse du Parnasse-Kiona-Oeta [with discussion]
Authors: Papastamatiou Jean 
Published: March 2020

Abstract
The stratigraphic sequence in the Parnassus-Kiona-Oeta mountain region, central Greece, consists of Triassic to Paleocene limestones and Flysch deposits. Flysch sedimentation began later (in the Lutetian) in the Oeta massif than elsewhere in the ranges. Three bauxite horizons are reported, one of which is a new discovery (in the upper Jurassic, below the Cladocoropsis limestones); the other two occur in the upper Cretaceous and in the Kimeridgian-Tithonian (Jurassic) boundary. The Parnassus-Kiona zone is thrust westward over the Pindus zone and in turn is overthrust by the sub-Pelagonian series.
Observations nouvelles sur la geologie des zones preapulienne et ionienne (Grece occidentale) [with discussion]
Authors: Bornovas Jean 
Published: March 2020

Abstract
New facts relating to the geology of the Paxos and Ionian zones, the outermost zones of the Hellenide structure of western Greece, are reported. In Leukas island, a shaly bituminous dolomite formation has been found to occur below the Cardita guembeli limestones which had previously been thought to be the oldest in Greece. In the eastern part of Cephallonia island there is evidence of transition between the Paxos and Ionian zones, represented principally by the extension of the limestone facies through the Oligocene and the presence of lower Miocene Flysch. The age of the gypsum found in the discordant upper Tertiary deposits is a problem; from their structural position and the nature of the associated limestone breccias, they could be Triassic or even Permian emplaced in two stages by a sort of diapirism.
Esquisse geologique du nord du Peloponese [with discussion]
Authors: Dercourt Jean 
Published: March 2020

Abstract
Describes the sedimentary character and paleogeographic development of the different paleogeographic zones in the northern Peloponnesus region, Greece--the Ionian trough, the Gavrovo-Tripolitza fold, the Pindus trough, the Trapezona submarine topographic high, and the sub-Pelagonian marginal zone. The most striking structural feature is due to the thrusting of the Parnassus-Trapezona zones directly over the Gavrovo-Tripolitza zone, which caused complete shattering of the Pindus trough and ejection of practically all the sediments that filled it over the fold that bordered it on the west.
Zone pelagonienne et zone du Vardar en Macedoine grecque [with discussion]
Authors: Mercier Jacques 
Published: March 2020

Abstract
Describes the stratigraphic sequences and structure of the Pelagonian and Vardar zones in Greek Macedonia. The eastern and western borders of the Vardar zone had a substantially different history of development in the Mesozoic; only after the beginning of the Priabonian (Eocene) did both depositional areas subside together, to be covered by Molasse deposits. It is thus only from Priabonian time that the Vardar zone in Kossmat's sense became differentiated; it is essentially a hinterland trough whose individualization took place after the major Hellenide tectonic movements.
Le niveau marin de Wingles dans le Westphalien B du Pas-de-Calais
Authors: Bouroz Alexis 
Published: March 2020

Abstract
Evidence of a marine invasion has been found in the Westphalian B deposits of the Pas-de-Calais coal district, France. The marine beds are described and named the Wingles horizon. It probably corresponds to the Eisden horizon in the Belgian and Dutch coal basins. The horizon occurs in the midst of a sedimentary series that is barren and partly sandy; it has no direct relation to coal deposition, but throws light on problems of the relations between subsidence and deposition of barren measures.
Fructifications sphenopteridiennes
Authors: Danze Jacques 
Published: March 2020

Abstract
Study of the Carboniferous coal flora of the Nord and Lorraine basins, France, revealed fragments of fertile pteridophyte pinnae exhibiting distinctive features, which belong to five genera of sphenopterids. Five new species are erected for these forms and described--Crossotheca minima, Myriotheca denticulata, Stellatheca parvula, Oligocarpia microscopica, and Dendraena rotundata. Each is smaller than other species of the same genus.