Results 81 to 90 of about 7,617 (206)

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

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  

The genus Ptychoceras d'Orbigny in the Aptian Albian of Patagonia and Antarctica

open access: yesNeues Jahrbuch für Geologie und Paläontologie - Abhandlungen, 2008
Fil: Riccardi, Alberto Carlos. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Division Paleozoologia Invertebrados; Argentina. Consejo Nacional de Investigaciones Cientificas y Tecnicas.
Riccardi, Alberto Carlos   +1 more
openaire   +2 more sources

Tuning Late Barremian – Aptian Arabian Plate and global sequences with orbital periods

open access: yes, 2010
A cyclostratigraphic framework is proposed for the Arabian Plate’s (AP) Upper Barremian – Aptian transgressive-regressive (T-R) depositional sequences, which calibrates their absolute age and attempts to correlate them to the global sequences in the ...
Moujahed I. Al-Husseini   +1 more
core   +1 more source

The Aptian of Lanestosa (Bizkaia): palaeotectonic implications

open access: yes, 1997
The Aptian of Lanestosa is analyzed based on detailed mapping and facies analysis. Four sedimentary units are differentiated: a basal terrigenous unit and three overlying carbonate platform units.
López Horgue, Mikel A.   +2 more
core  

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  

Aptian-Campanian ammonites of Hungary

open access: yes, 2007
Studies on the Cretaceous ammonites of Hungary had been started in the second half of the XIXth century with the finding of the impressive fossil assemblage of “Schichten von Nána” (HAUER 1862).
Bujtor, László   +3 more
core   +1 more source

Climate variability and relationship with ocean fertility during the Aptian

open access: yes, 2014
The late Barremian-early Aptian time interval was marked by intense volcanic activity of the Ontong Java Plateau (OJP) which induced a global perturbation in the ocean-atmosphere system culminating in the early Aptian Oceanic Anoxic Event (OAE) 1a ...
D. Tiraboschi   +5 more
core   +2 more sources

Calcareous nannofossil biostratigraphy of Sarcheshmeh and Sanganeh formations in the west of Kopet-Dagh Basin, Sheikh Section [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2015
The Kopet-Dagh Basin is located in the north and north east of Iran, within the border triangle of Iran, Turkmenistan and Afghanistan. Sediments of Cretaceous age are well exposed in this basin.
Azam Mahanipour   +1 more
doaj   +1 more source

Aptian-turonian events in central Tunisia : [pre-symposium field trip] [PDF]

open access: yes, 2005
Géologie alpine. Série spéciale Colloques et excursions, ; 5 155 pThe central part of Tunisia is fonned by anticlines, the axis of which are oriented SW-NE. These mountains, called Jebel, are separated by alluvial plains. The mountains consist usually of
Arnaud Vanneau, Annie, Zghal, Ihsen
core   +1 more source

Stop 2: Kanfanar quarry - Upper Aptian–upper Albian unconformity

open access: yes, 2023
The upper Aptian–upper Albian unconformity marks the division between the second, late Tithonian–early/late Aptian megasequence, characterised by facies heterogeneity and considerable thickness, and the third, late Albian– late Santonian megasequence ...
Durn, Goran   +2 more
core   +2 more sources

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