Results 181 to 190 of about 8,464 (208)

The iguanodons of Bernissart (Belgium) are middle Barremian to earliest Aptian in age

Bulletin de l'Institut Royal des Sciences Naturelles de Belqique, Sciences de la Terre, 2006
The iguanodons of Bernissart (Belgium) have attracted considerable interest since their discovery in the nineteenth century and still remain a reference material. Until now they were relatively poorly dated. This paper deals with the ichthyofauna and the first use of pollen of angiosperms from the dinosaur-bearing sediments to show that they are middle
Yans, Johan, Dejax, Jean, Pons, Denise, Taverne, Louis, Bultynck, Pierre   +4 more
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New Insight on the Depositional Environment and Facies Atlas of Aptian in a Super Giant Carbonate Field in the Middle East

Abu Dhabi International Petroleum Exhibition and Conference, 2010
Abstract The 3D architecture of flow units is a key parameter influencing production and recovery from oil reservoirs. Depositional facies and their 3D stacking patterns are commonly fundamental building blocks of flow units. Hence, the recognition of facies, and their placement in conceptual depositional environments is the basic ...
Zinhom El Wazir, Volker C. Vahrenkamp, Klaus Mueller, Noura Al Madani, Fatema Al Shekaili, Abdelmalek Messisha, Aita Bijaripour, Erich Funk   +7 more
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Late Barremian–early Aptian climate of the northern middle latitudes: Stable isotope evidence from bivalve and cephalopod molluscs of the Russian Platform

Cretaceous Research, 2013
Abstract Palaeotemperatures during the late Barremian–early Aptian (Early Cretaceous) on the Russian Platform have been determined on the basis of oxygen isotope analysis of aragonitic bivalve molluscan and ammonoid shells and belemnite rostra with well-preserved microstructure from the Ulyanovsk area.
Yuri D. Zakharov, Eugenij Y. Baraboshkin, Helmut Weissert, Irina A. Michailova, Olga P. Smyshlyaeva, Peter P. Safronov   +5 more
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Euxinia as a dominant process during OAE1a (Early Aptian) on the Eastern Russian Platform and during OAE1b (Early Albian) in the Middle Caspian

Science China Earth Sciences, 2016
© 2016, Science China Press and Springer-Verlag Berlin Heidelberg.A detailed study of the mineral composition and microstructure of the black shales associated with OAE1a (Eastern Russian Platform), OAE1b (Middle Caspian), and the host rocks has been carried out using X-ray diffraction, scanning electron microscopic, and microprobe analyses.
Zorina S., Pavlova O., Galiullin B., Morozov V., Eskin A.   +4 more
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Astronomical calibration of the latest Aptian to middle Albian in the South Atlantic Ocean

Palaeogeography, Palaeoclimatology, Palaeoecology, 2022
Gerson Fauth, Guilherme Krahl, Karlos Guilherme Diemer Kochhann, Marlone Heliara Hünnig Bom, Simone Baecker-Fauth, Mauro Daniel Rodrigues Bruno, Rodrigo do Monte Guerra, Daiane Ceolin, Alessandra da Silva dos Santos, Jorge Villegas-Martin, Oscar Strohschoen, Jairo Francisco Savian, Carolina Gonçalves Leandro, Raquel Gewehr de Mello, Francisco Henrique de Oliveira Lima   +14 more
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Saranač Pass: Middle– Upper Aptian with Salpingoporella dinarica

2007
Unlike the lower and uppermost stages of the Lower Cretaceous, which are characterized by individual taxa or more or less distinct assemblages, Middle Aptian deposits are characterized by the absence of significant index forms. Consequently, separation of the Lower and Upper Aptian in Biokovo and the wider Dinaride area is based on an absence of P ...
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Sedimentary evolution of an active margin during middle and upper cretaceous times: the north Peruvian margin from late aptian up to senonian

Geologische Rundschau, 1987
The sedimentary evolution of the North Peruvian margin during upper Cretaceous can be summarized as follows:
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The upper Aptian–middle Albian Simplorbitolina lineage: an example of nepionic acceleration in Lower Cretaceous Orbitolinidae (Foraminifera)

Historical Biology, 2021
Felix Schlagintweit, Idoia Rosales, Maria Najarro   +2 more
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Stratigraphic distribution of the main benthic foraminifera from the Aptian to Middle Cenomanian of the islands of Cres and Lošinj

1999
Study of the stratigraphic distribution of the main benthic foraminifera on the islands of Cres and Lošinj (northern Adriatic) has allowed the identification of different orbitolinid zones, from the Lower Aptian (Palorbitolina lenticularis Taxon.range Zone) to the Middle Cenomanian (Orbitolina (Conicorbitolina) conica Abundance Zone).
Velić, Ivo, Husinec, Antun, Fućek, Ladislav   +2 more
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Aptian Flysch in Central Tibet: Constraints on the Timing of Closure of the Bangong‐Nujiang Tethyan Ocean

Tectonics, 2020
Jian-Jun Fan, Hang Li
exaly