Results 101 to 110 of about 2,451 (206)

Distribution of organic matter in Callovian–Lower Berriasian deposits of the western part of the Yenisei–Khatanga regional trough and adjacent areas of the West Siberian geosyneclise

open access: yes, 2017
This study presents the results of geochemical analysis of organic matter and paleogeographic reconstructions supplemented by data from well log interpretation and cyclostratigraphic analysis for the Vasyugan, Georgiev, and Bazhenov Horizons of the ...
S.V. Ershov, N.S. Kim, A.P. Rodchenko
core   +1 more source

Preliminary palynological investigation of the Byers Group (Late Jurassic-Early Cretaceous), Livingston Island, Antarctic Peninsula

open access: yes, 1994
Dinoflagellate cyst assemblages of the Byers Group have been correlated with palynostratigraphical zones established for the Mesozoic of Australia. The President Beaches Formation is believed to be latest Early Berriasian-Berriasian in age, based on its ...
Duane, Ailbhe M.
core   +1 more source

Earliest Cretaceous (late Berriasian) glendonites from Northeast Siberia revise the timing of initiation of transient Early Cretaceous cooling in the high latitudes [PDF]

open access: yes, 2017
The studies of past climatic changes form the basis for predicting our future anthropogenic world and are among the most prominent topics in current Earth sciences.
Худолей, Андрей Константинович
core  

Proposals for the stratigraphic positions of the Berriasian - Valanginian and the Valanginian Hauterivian boundaries

open access: yesBulletin of the Geological Society of Denmark, 1984
In two previous papers (Hoedemaeker, 1982, 1983) the author proposed to draw the boundary between the Berriasian and the Valanginian at the base of the TimoveUa alpiUensis Subzone, which he described from SE Spain. The correlation of this subzone with the published French zonation is however problema­tic, because the fauna) association of the ...
openaire   +1 more source

DONNÉES NOUVELLES SUR LA STRATIGRAPHIE ET LA MICROPALÉONTOLOGIE DES SÉRIES CARBONATÉES DE TALUS ET DE BASSIN DU CRÉTACÉ INFÉRIEUR DU GARGANO (ITALIE MÉRIDIONALE)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2020
The stratigraphic revislon of the Iower Cretaceous successions from the Gargano peninsula provides new lithostratigraphic data ; two formations could be distinguished: the Vico del Gargano Limestones and the Mattinata Limestones corresponding to basin ...
ELENA LUPERTO SINNI, JEAN-PIERRE MASSE
doaj  

Uncertainties surrounding the oldest fossil record of diatoms. [PDF]

open access: yesSci Rep, 2023
Bryłka K   +4 more
europepmc   +1 more source

Effects of paleogeographic changes and CO2 variability on northern mid-latitudinal temperature gradients in the Cretaceous. [PDF]

open access: yesNat Commun, 2023
Gianchandani K   +6 more
europepmc   +1 more source

Paleogeography of the West Siberian sedimentation basin in the Early Cretaceous era [PDF]

open access: yesНефтегазовая геология: Теория и практика
Based on the integration of geological and geophysical information, the facies and sedimentation environments of the Early Cretaceous terrigenous strata of Western Siberia were determined.
Shimanskiy V.V.   +9 more
doaj  

Sexual dimorphism in dinosaurs. [PDF]

open access: yesElife, 2023
Ludwig SA, Smith RE, Ibrahim N.
europepmc   +1 more source

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