Results 1 to 10 of about 19 (10)

Support for a Vraconnian Stage between the Albian sensu stricto and the Cenomanian (Cretaceous System) [PDF]

open access: yesCarnets de Géologie, 2008
The geological scale for the middle Cretaceous currently used throughout the world was proposed by Alcide d'Orbigny in the XIXth century between the years 1842 and 1847 and establishes the succession of stages as Albian, Cenomanian and Turonian.
Amédro Francis
doaj   +7 more sources

Zonation by ammonites and foraminifers of the Vraconnian-Turonian interval: A comparison of the Boreal and Tethyan domains (NW Europe / Central Tunisia) [PDF]

open access: yesCarnets de Géologie, 2008
Since the end of the 19th century the interval comprising the uppermost Upper Albian, the Cenomamian, the Turonian and the basal Coniacian has been subdivided, first into ammonite zones, then, beginning in the middle of the 20th century, into zones of ...
Amédro Francis, Robaszynski Francis
doaj   +4 more sources

The Albian (Vraconnian)-Cenomanian boundary at the western Tethyan margins (Central Tunisia and southeastern France)

open access: yesBulletin de la Société Géologique de France, 2008
AbstractThrough the description and interpretation of the position of macro- and microfossils in several sections of the Albian-Cenomanian boundary in SE France and Central Tunisia, a comparison is made between the north and south margins of the Tethyan Ocean by using the occurrences of marker bioevents.
Robaszynski, Francis   +3 more
openaire   +3 more sources

Uppermost Albian biostratigraphy and chronostratigraphy

open access: yesCarnets de Géologie, 2009
The Albian Stage is the highest chronostratigraphic unit of the Lower Cretaceous Series and underlies the Cenomanian Stage of the Upper Cretaceous Series.
Scott Robert W.
doaj   +1 more source

Le Gargasien de Gargas (Vaucluse, SE de la France) : synthèse des données de terrain et révision de la microfaune de foraminifères et d'ostracodes [The Gargasian of Gargas (Vaucluse, SE France): Synthesis of field data and revision of the foraminiferal and ostracodal microfauna]

open access: yesCarnets de Géologie, 2009
Because of urbanization the section at Gargas, historical stratotype of the Aptian stage and of the Gargasian substage, is no longer accessible. However, samples taken there in 1966 by one of us make feasible a reinterpretation of this series in the ...
Moullade Michel   +2 more
doaj   +1 more source

The Gargasian of Gargas (Vaucluse, SE France) : Synthesis of field data and revision of the foraminiferal and ostracodal microfauna [PDF]

open access: yes, 2009
Because of urbanization the section at Gargas, historical stratotype of the Aptian stage and of the Gargasian substage, is no longer accessible. However, samples taken there in 1966 by one of us make feasible a reinterpretation of this series in the ...
Babinot, Jean-François   +5 more
core   +1 more source

La formation des argiles silteuses de Marcoule dans les sondages ANDRA du Gard rhodanien (SE France) : La limite Albien terminal ("Vraconnien")- Cénomanien au moyen des ammonites et comparaison avec les affleurements de Salazac

open access: yes, 2000
The Marcoule silty shales Formation of the ANDRA borings In the rhodanian Gard (SE France) : the uppermost Albian ("Vraconnian")-Cenomanian boundary by means of ammonites. Comparison with the Salazac outcrops. In the rhodanian part of the Gard department
Amédro, Francis, Robaszynski, Francis
core   +1 more source

Stratigraphic succession (Albian to lower? Cenomanian) and upper Albian ammonites and biozones from the Talerhza Basin (South Riffian Ridges, northern Morocco)

open access: yes, 2017
Lithostratigraphical analysis of more than ten sections of the El Mizab Formation (Talerhza Basin), previously assigned to the "Vraconnian" lead to distinguish a similar succession of five members, called from oldest to youngest: Silty marly limestones ...
Oumhamed, Mohamed   +3 more
core   +1 more source

Relations between the northern and southern margins of the Tethys ocean during the Cretaceous period

open access: yesCarnets de Géologie, 2007
A set of 11 abstracts and short papers (extended abstracts) of presentations given at a meeting organized by the "Groupe Français du Crétacé (GFC)", held on November 27-28, 2007 at the "École des Mines" in Paris ...
Bulot Luc G.   +2 more
doaj  

Les bioévénements de la limite Albien (Vraconnien) - Cénomanien aux marges nord et sud de la Téthys (S.E. de la France et Tunisie centrale)

open access: yes, 2007
International audienceLes bioévénements de la limite Albien (Vraconnien) - Cénomanien aux marges nord et sud de la Téthys (S.E. de la France et Tunisie centrale) [Bioevents at the Albian (Vraconnian) - Cenomanian boundary at the North and South margins ...
Amédro, Francis   +3 more
core  
Home - About - Disclaimer - Privacy