Results 61 to 70 of about 430 (178)

About the stratigraphic position of the Lower Aptian Roloboceras hambrovi (Ammonoidea) level

Carnets de Géologie, 2008
In the stratotype of the Lower Aptian substage the position of the assemblage that includes Roloboceras spp. and Megatyloceras spp. has been clearly established as being in the middle part of the upper Bedoulian. Some authors have erected this horizon as
Conte Gabriel, Tronchetti Guy, Moullade Michel, Ropolo Pierre   +3 more
doaj  

The GSSP Method of Chronostratigraphy: A Critical Review

Frontiers in Earth Science, 2018
The use of boundary stratotypes to define chronostratigraphic units began in the 1960s, and, in the 1980s, these were called Global Stratotype Sections and Points (GSSPs). Approximately two-thirds of the GSSPs of the bases of the Phanerozoic stage (71 of
Spencer G. Lucas
doaj   +1 more source

The varved succession of Crawford Lake, Milton, Ontario, Canada as a candidate Global boundary Stratotype Section and Point for the Anthropocene series. [PDF]

Anthropocene Rev, 2023
McCarthy FM, Patterson RT, Head MJ, Riddick NL, Cumming BF, Hamilton PB, Pisaric MF, Gushulak AC, Leavitt PR, Lafond KM, Llew-Williams B, Marshall M, Heyde A, Pilkington PM, Moraal J, Boyce JI, Nasser NA, Walsh C, Garvie M, Roberts S, Rose NL, Cundy AB, Gaca P, Milton A, Hajdas I, Crann CA, Boom A, Finkelstein SA, McAndrews JH.   +28 more
europepmc   +1 more source

CALCAREOUS PLANKTON HIGH RESOLUTION BIO-MAGNETOSTRATIGRAPHY FOR THE LANGHIAN OF THE MEDITERRANEAN AREA

Rivista Italiana di Paleontologia e Stratigrafia, 2008
High-resolution quantitative and qualitative analyses of the planktonic foraminifer and calcareous nannofossil content have been carried out on three Middle Miocene sections, from the Mediterranean area. Such sections (Cretaccio section, Tremiti Islands,
AGATA DI STEFANO, LUCA MARIA FORESI, FABRIZIO LIRER, SILVIA MARIA IACCARINO, ELENA TURCO, FILOMENA ORNELLA AMORE, ROBERTO MAZZEI, SIMONA MORABITO, GIANFRANCO SALVATORINI, HAYFAA ABDUL AZIZ   +9 more
doaj   +1 more source

Early Aptian δ¹³C and manganese anomalies from the historical Cassis-La Bédoule stratotype sections (S.E. France): relationship with a methane hydrate dissociation event and stratigraphic implications

Carnets de Géologie, 2005
Comparison of oxygen and carbon isotope and manganese evolution curves in bulk carbonate from the historical Bedoulian stratotype (Cassis-La Bédoule area, Provence, France) reveals an important geochemical event (negative δ¹³C and high Mn content ...
Tronchetti Guy, Bergen Jim A., Kuhnt Wolfgang, Moullade Michel, Masse Jean-Pierre, Rafélis Marc de, Emmanuel Laurent, Renard Maurice   +7 more
doaj  

Issue Information

Boreas, Volume 54, Issue 4, Page 481-483, October 2025.
wiley   +2 more sources

Les Ostracodes du Bédoulien supérieur et du Gargasien inférieur du stratotype d'Apt : Systématique et corrélations biostratigraphiques

Carnets de Géologie, 2007
Dans les environs de Saint-Saturnin-lès-Apt (Vaucluse, SE France), partie intégrante du secteur stratotypique historique de l'Aptien d'Apt-Gargas, une succession en relais de quatre coupes permet d'étudier de façon très détaillée et continue les ...
Tronchetti Guy, Moullade Michel, Babinot Jean-François   +2 more
doaj  

Researchers move closer to defining the Anthropocene. [PDF]

Proc Natl Acad Sci U S A, 2023
Perkins S.
europepmc   +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]

Carnets 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, Tronchetti Guy, Babinot Jean-François   +2 more
doaj  

Le Gargasien (Aptien moyen) de La Tuilière - St-Saturnin-lès-Apt (région du stratotype historique de l'Aptien, Vaucluse, SE France) : localisation géographique et corrélations des affleurements

Carnets de Géologie, 2006
L'analyse stratonomique et micropaléontologique des affleurements de marnes aptiennes du secteur du hameau de La Tuilière, près de Saint-Saturnin-lès-Apt (Vaucluse, SE France), nous a permis de reconstituer une série continue ...
Moullade Michel, Tronchetti Guy, Balme Christine, Kouyoumontzakis Georges   +3 more
doaj