Results 71 to 80 of about 2,786 (210)

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

Stratotype Cénomanien

, 2015
Les sols sableux et pauvres de la région du Mans ont permis le développement de landes, aujourd’hui enrésinées. Le genêt, arbuste typique de ce milieu, est devenu au XIIe siècle l’emblème des comtes du Maine, surnommés les Plantagenêts.

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, Nicolas MOREL

Auteur

MOREL   +1 more
core  

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  

THE GELASIAN STAGE: A PROPOSAL OF A NEW CHRONOSTRATIGRAPHIC UNIT OF THE PLIOCENE SERIES

Rivista Italiana di Paleontologia e Stratigrafia, 2017
A new Stage, the Gelasian, is proposed as the third upper subdivision of the Pliocene Series. The GSSP of the base of the Gelasian Stage and of the Middle Pliocene-Upper Pliocene boundary is coincident with a "sapropel" level which outcrops in the Monte ...
DOMENICO RIO, RODOLFO SPROVIERI, ENRICO DI STEFANO   +2 more
doaj   +1 more source

The Deshayesitidae Stoyanov, 1949 (Ammonoidea) of the Aptian historical stratotype region at Cassis-La Bédoule (SE France)

Carnets de Géologie, 2006
One of the significant results of the multidisciplinary investigations carried out during recent years in the Lower Aptian historical stratotype of the Cassis-La Bédoule region (South-Eastern France) was a proposal to update the local Upper Barremian ...
Ropolo Pierre, Moullade Michel, Gonnet Roland, Conte Gabriel, Tronchetti Guy   +4 more
doaj  

The Quaternary of Poland and its stratigraphic classification

Geographia Polonica
Quaternary studies in Poland require an improved integration of lithostratigraphy, biostratigraphy, chronostratigraphy, geochronology, magnetostratigraphy, climatostratigraphy and isotope stratigraphy.
Leszek Marks, Zdzisław Jary
doaj   +1 more source

Stratotype Lutétien

, 2008
Avec l’Île-de-France pour région stratotypique, le Lutétien est un étage internationalement reconnu et mondialement renommé. Les fossiles qu’on y trouve, les monuments fabriqués à partir des roches datant de cette époque et les personnages qui s’y sont ...

x

, Didier MERLE

Auteur

MERLE   +1 more
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