Results 261 to 270 of about 28,559 (299)

Biozonation, microfacies analysis and depositional environment of the Cenomanian sediments (Sarvak Formation) in South Zagros Basin (SW Iran)

Carbonates and evaporites, 2022
Mahtab Dousti Mohajer, M. Afghah, M. Dehghanian, Seyed Jamal Sheikh Zakariaii   +3 more
semanticscholar   +1 more source

Reservoir quality discrimination of the Albian-Cenomanian reservoir sequences in the Ivorian basin: a lithological and petrophysical study

Geomechanics and Geophysics for Geo-Energy and Geo-Resources, 2021
Isaac Fea, M. Abioui, B. Nabawy, Sreepat Jain, D. Z. Bruno, A. Kassem, Mohammed Benssaou   +6 more
semanticscholar   +1 more source

The Albian-Cenomanian boundary in northern California

Geological Society of America Bulletin, 1996
There is no internationally agreed-upon stratotype for the Albian-Cenomanian (Lower Cretaceous–Upper Cretaceous) boundary. Type sections in France for the Albian and Cenomanian Stages are inadequate for this purpose. The proposed boundary stratotype sections in North Africa and Texas that were discussed in Copenhagen at the 1983 Third International ...
Peter U. Rodda, Michael A. Murphy
openaire   +2 more sources

Paleointensity behavior in Barremian–Cenomanian (Cretaceous) [PDF]

International Journal of Geomagnetism and Aeronomy, 2004
Fragmentary knowledge on geomagnetic field intensity in Barremian–Cenomanian stageobtained from sediment rocks is summarized. Three types of periodical variations arerevealed in the paleointensity behavior. The types differ by the amplitude and duration(tens of millennia, hundreds of millennia and more than million years).
openaire   +1 more source

The Cenomanian-Turonian transgression in the Iberian Ranges (Spain): depositional sequences and the location of the Cenomanian-Turonian boundary

Cretaceous Research, 1993
Abstract In the central Iberian Ranges the Cenomanian-Turonian boundary is located within a 3rd-order depositional sequence. Sedimentation began following an Atlantic transgression which flooded the Iberian plate from its northern margin. Facies are deepest, mainly hemipelagic, in the north (marls and nodular limestones with ammonites, echinids and ...
B. Carenas, A. García, José F. García-Hidalgo, Manuel Segura   +3 more
openaire   +2 more sources

The late Cenomanian Event in eastern England

Cretaceous Research, 1993
The Cenomanian-Turonian boundary event has been fully documented from a series of localities between Flamborough Head in Humberside and Marham in Norfolk. The carbon isotope excursion can be identified and extrapolated to all the studied sections using bed-by-bed correlation.
A.M. Duane, Malcolm B. Hart, P Dodsworth
openaire   +2 more sources

The unusual cenomanian oyster Pycnodonte biauriculatum

Geobios, 1984
Abstract From Albian to Maastrichtian times oysters belonging to the genus Pycnodonte were a major component of the bivalve fauna. In marly and sandy Cenomanian facies several oysters occurred in banks; one of them is Pycnodonte (P.) biauriculatum which is distributed from the Iberian Peninsula to Central Asia.
openaire   +2 more sources

Cenomanian and Turonian echinoids from Nigeria

Geobios, 1997
Cenomanian to Middle Turonian echinoid faunas from Nigeria are described for the first time on the basis of new collections sampled during recent geological investigations in the Benue Trough. Five Cenomanian species have been recognized: Tetragramma variolare, Heterodiadema libycum, Micropedina olisiponensis, Mecaster pseudofourneli, Mecaster sp.
Didier Néraudeau, Philippe Courville
openaire   +2 more sources

The late Cenomanian event in eastern England

Historical Biology, 1991
The Cenomanian/Turonian boundary event has been fully documented from a series of localities between Flamborough Head in Humberside and Marham in Norfolk. The carbon isotope excursion can be identified and extrapolated to all the studied sections using bed‐by‐bed correlation.
Malcolm B. Hart, P Dodsworth, P.W. Ditchfield, A.M. Duane, C.J. Orth   +4 more
openaire   +2 more sources

Cenomanian phosphorites in the former Soviet Union

Sedimentary Geology, 1994
Abstract Cenomanian nodular phosphorites are widespread over vast areas of the Precambrian East European Platform (EEP). They are found in various parts of the Cenomanian forming thicker and richer beds close to the Cenomian/Turonian boundary. They are encountered nearly ubiquitously, but are concentrated on synsedimentary highs in thin and condensed
openaire   +2 more sources