Results 1 to 10 of about 2,128 (167)

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

open access: yesCarnets 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   +4 more
doaj   +8 more sources

Characterisation of the organic matter of upper Bedoulian and lower Gargasian strata in the historical stratotypes (Apt and Cassis-la-Bédoule areas, SE France) [PDF]

open access: yesCarnets de Géologie, 2008
The Total Organic Carbon (TOC) content of the Gargasian strata studied in their historical stratotype area is rather low (0.3% on average). Only a few levels show TOC values approaching 1.2%. This small amount of preserved organic matter, associated with
Tronchetti Guy   +2 more
doaj   +5 more sources

The Gargasian (Middle Aptian) strata from Cassis-La Bédoule (Lower Aptian historical stratotype, SE France): planktonic and benthic foraminiferal assemblages and biostratigraphy [PDF]

open access: yesCarnets de Géologie, 2005
This paper presents a thorough analysis of foraminiferal assemblages ranging in age from the Bedoulian-Gargasian transition to the middle Gargasian in the Cassis-La Bédoule area (SE France), the historical stratotype of the Lower Aptian substage.
Bellier Jean-Pierre   +2 more
doaj   +5 more sources

The Douvilleiceratidae (Ammonoidea) of the Lower Aptian historical stratotype area at Cassis-La Bédoule (SE France)

open access: yesCarnets de Géologie, 2008
Recent biostratigraphic research in the marly limestones of the Cassis-La Bédoule area (SE France) provided a rich macrofauna of Douvilleiceratidae Parona & Bonarelli, 1897. From the uppermost Barremian (Pseudocrioceras waagenoides Subzone) to the middle
Tronchetti Guy   +4 more
doaj   +5 more sources

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 [PDF]

open access: yesCarnets de géologie (Notebooks on geology), 2005
Comparison of oxygen and carbon isotope and manganese evolution curves in bulk carbonate from the historical Bedoulian stratotype (Cassis-La Bedoule area, Provence, France) reveals an important geochemical event (negative δ 13 C and high Mn content) located within the D. deshayesi ammonite Zone and at the base of the R. hambrowi ammonite Subzone.
Renard, Maurice   +7 more
core   +6 more sources

The Aptian Marls of La Tuilière (Luberon UNESCO Global Geopark, France), a Historical Stratotype [PDF]

open access: yesGeoconservation Research, 2021
The historical stratotype of the Aptian Stage (Cretaceous) was defined in the Luberon UNESCO global geopark in the middle of the 19th century. Due to excessive urbanization launched in the early sixties, the best outcropping conditions are those found at
Stephane Legal, Pauline Coster
doaj   +5 more sources

The Gargasian (Middle Aptian) substage in the Aptian historical stratotypes (SE France): General introduction [PDF]

open access: yesCarnets de Géologie, 2004
In 1998 a double volume of the Journal "Géologie Méditerranéenne" (t. XXV, N° 3-4) was devoted to a detailed inventory of the Lower Aptian (Bedoulian substage) historical stratotype located in the vicinity of Cassis and Roquefort-La Bédoule, near ...
Tronchetti Guy, Moullade Michel
doaj   +9 more sources

Fluctuations of sea-water chemistry during Gargasian (Middle Aptian) time. Data from trace-element content (Mg, Sr, Mn, Fe) in hemipelagic carbonates from La Marcouline Quarry (Cassis, SE France)

open access: yesCarnets de Géologie, 2007
In the Lower Aptian historical stratotype area (Cassis-La Bédoule, SE France), a geochemical study of the Gargasian (Middle Aptian) marl-limestone alternations of the La Marcouline quarry complements data already obtained from Bedoulian (Early Aptian ...
TRONCHETTI Guy   +5 more
doaj   +2 more sources

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

open access: yesCarnets 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   +7 more
doaj   +1 more source

Cretaceous microporid cheilostome bryozoans from the Campanian historical stratotype of southwest France

open access: yesGeodiversitas, 2022
The Campanian of southwest France hosts rich and diverse bryozoan assemblages of global importance in tracing the faunal turnover from cyclostome to cheilostome dominance. Nevertheless, bryozoans from this historical stratotype region for the Campanian stage have been poorly studied, and most of the species erected by Alcide d’Orbigny in the 1850s ...
Taylor, Paul D., Villier, Loïc
openaire   +2 more sources

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