Les faunes malacologiques lacustres et le probleme du synchronisme de l'Eocene inferieur des Corbieres et du bassin de Paris. Validite de l'etage 'sparnacien' dans les Corbieres

1962 ◽  
Vol S7-IV (1) ◽  
pp. 92-96
Author(s):  
Jean Claude Plaziat
Keyword(s):  
Paris Basin ◽  
Lower Eocene ◽  
Marine Transgression ◽  
Marine Deposits

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

Coprolites from shallow marine deposits of the Nanjemoy Formation, Lower Eocene of Virginia, USA

Lethaia ◽  
2020 ◽  
Vol 54 (1) ◽  
pp. 26-39 ◽  
Author(s):  
Paula Dentzien‐Dias ◽  
Adrian P. Hunt ◽  
Spencer G. Lucas ◽  
Heitor Francischini ◽  
Marco Gulotta
Keyword(s):  
Lower Eocene ◽  
Shallow Marine ◽  
Marine Deposits

Influence de la tectonique du Pays de Bray sur les formations paleogenes au voisinage de sa terminaison orientale

1964 ◽  
Vol S7-VI (3) ◽  
pp. 357-367 ◽  
Author(s):  
A. Blondeau ◽  
Claude Cavelier ◽  
Charles Pomerol
Keyword(s):  
Late Cretaceous ◽  
Middle Eocene ◽  
Tectonic Activity ◽  
Paris Basin ◽  
Upper Eocene ◽  
Lower Eocene ◽  
Tectonic Movements

Abstract Major facies changes in the Paleogene formations at the southeast end of the Pays de Bray anticline of the Paris basin, in the vicinity of Beaumont-sur-Oise, date tectonic movements and periods of remission during the Paleogene. Although the anticline developed during the late Cretaceous, it seems to have had no significant effect upon sedimentation until its emergence and the concurrent establishment of continental sedimentation in the upper Thanetian (lower Eocene). Tectonic activity occurred again in the lower Sparnacian and the upper Cuisian (lower Eocene), the lower and the upper Lutetian (middle Eocene), the Ledian (lower Priabonian: upper Eocene), the Ludian (upper Priabonian: upper Eocene), and the lower Stampian (middle Oligocene).

Stratigraphie du Paleogene du bassin de Paris en relation avec les bassins avoisinants

1965 ◽  
Vol S7-VII (2) ◽  
pp. 200-221 ◽  
Author(s):  
A. Blondeau ◽  
Claude Cavelier ◽  
Leon Feugueur ◽  
Charles Pomerol
Keyword(s):  
Paris Basin ◽  
Upper Eocene ◽  
Lower Eocene ◽  
Lower Upper ◽  
Lower Tertiary ◽  
Upper Paleocene

Abstract New data on the lower Tertiary of the Paris basin places the Vigny limestone in the Montian (Paleocene). The Thanetian-Sparnacian (lower-upper Paleocene) boundary is well-marked. The Ypresian (lower Eocene) in the basin includes the basal lagoonal Sparnacian and the Cuisian at the top. The upper section of the Lutetian includes the Biarritzian. The Ledian (upper Eocene) and probably the Wemmelian in Belgium, and the upper Bracklesham beds in Hampshire (England) should be correlated with the upper Lutetian. The Bartonian substage is extended to include the Auversian, Marinesian, and Ludian which are equivalent to the upper Eocene. The Eocene-Oligocene boundary is situated at the base of the Romainville green shale. The supragypsiferous marls, the lower Tongrian and the Bembridge beds are assigned to the upper Eocene. The Sannoisian is referred to the Stampian in the Paris basin, which corresponds to the upper Tongrian and Rupelian in Belgium and to the Hamstead beds in England. Charts correlating the stages in the Paris basin with the neighboring countries of Belgium and England are given for each stage.

Contribution a l'etude des 'calcaires montiens' du bassin de Paris: la faune d'Ostracodes

1964 ◽  
Vol S7-VI (3) ◽  
pp. 349-356 ◽  
Author(s):  
Renee Damotte
Keyword(s):  
Paris Basin ◽  
Lower Eocene

Abstract The ostracod fauna of the Montian (lower Eocene) limestone of the Paris basin has many of the same species found in the Mons basin in Belgium, as well as in Holland. The Tringinglymus beds (faunizone 7) in the Mons limestone are not found in the Paris basin.

Mode d'empilement et distorsion de sequences genetiques en milieu marin restreint; facies et architecture des depots hettangiens du sud-ouest du bassin de Paris

2000 ◽  
Vol 171 (3) ◽  
pp. 341-353 ◽  
Author(s):  
Gilles Merzeraud ◽  
Raymond Rauscher ◽  
Michel Hoffert ◽  
Francois Verdier
Keyword(s):  
Sea Level ◽  
Paris Basin ◽  
Sea Level Fluctuations ◽  
Marine Deposits ◽  
Geometric Patterns ◽  
Sea Level Oscillations ◽  
Genetic Sequences ◽  
Stacking Patterns ◽  
Eustatic Fluctuations

Abstract In the southwestern part of the Paris Basin (Sologne region), dolomite and limestone deposits of Hettangian age represent an excellent cover for a thick sandstone reservoir, which is being worked by "Gaz de France" for natural gas storage in underground aquifers. The "genetic sequences" of these shallow marine deposits and their stacking patterns are associated with two orders of relative sea-level fluctuations. The thinnest genetic sequences are arranged in transgressive/regressive hemicycles that include distinct facies assemblages. The facies changes are related to rapid palaeogeographic variations that occur during the onset of each genetic sequence. On a different scale, the stacked genetic sequences are organized into three geometric patterns, which are related to long-term eustatic fluctuations (eg. aggradational, retrogradational, and progradational patterns). For each of these stacked geometries, the partitioning of sediment volumes, the degree of symmetry, and the two-dimensional architecture of the genetic sequences had been modified through time. These changes are related to the effects of two superimposed short-term and long-term sea-level oscillations that distort the stratigraphic record.

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