Results 21 to 30 of about 10,069 (268)

Suprasubduction ophiolite (SSZ) components in a middle to lower upper Jurassic Hallstatt Mélange in the Northern Calcareous Alps (Raucherschober/Schafkogel area)

open access: yesGeosystems and Geoenvironment, 2023
The Northern Calcareous Alps in the Western Tethys realm were affected in Middle to Late Jurassic times by a mountain building process triggered by ophiolite obduction similar to that in the Inner Western Carpathians or Inner Dinarides.
Sebastian P. Drvoderic   +3 more
doaj   +1 more source

Analysis of diversity, stratigraphic and geographical distribution of isolated theropod teeth from the Upper Jurassic of the Lusitanian Basin, Portugal [PDF]

open access: yes, 2017
Purpose: Isolated theropod teeth are abundant in the Upper Jurassic of the Lusitanian Basin and are an important source to reconstruct the diversity of this group as well as its geographic and stratigraphic distribution.
Angelica Torices   +13 more
core   +1 more source

Lithostratigraphic analysis and characterization of the upper miocene deformation of the Beni Bou Ifroure massif (Jbel Harcha Unit) eastern Rif Morocco [PDF]

open access: yesE3S Web of Conferences, 2023
In the eastern Rif the unit of Jbel Harcha which is part of Beni Bou Ifroure massif, the latter belongs to the Rif chain which was formed during the Alpine orogeny.
Makkaoui Mohamed   +3 more
doaj   +1 more source

A natural gas hydrate-oil-gas system in the Qilian Mountain permafrost area, northeast of Qinghai-Tibet Plateau

open access: yesChina Geology, 2020
: Natural gas hydrate, oil and gas were all found together in the Qilian Mountain permafrost area, northeast of Qinghai-Tibet Plateau, China. They are closely associated with each other in space, but whether they are in any genetic relations are unknown ...
Zhen-quan Lu   +8 more
doaj   +1 more source

Revisiting the choristodere and stem-lepidosaur specimens of the Guimarota Beds (Kimmeridgian, Portugal): taxonomic implications [PDF]

open access: yesActa Palaeontologica Polonica
The Guimarota beds (Kimmeridgian, Portugal) constitute one of the richest microvertebrate assemblages for the Upper Jurassic, which include a diverse fauna of small reptiles.
ALEXANDRE R.D. GUILLAUME   +2 more
doaj   +1 more source

DEEP KARST AREAS EVIDENCED BY SEISMIC RESEARCH IN MOESIAN PLATFORM [PDF]

open access: yesRomanian Journal of Petroleum & Gas Technology, 2023
Around half of the total carbonate rocks of Romanian territory are Upper Jurassic-Lower Cretaceous age. Most of them are able to develop karst phenomena.
Elena-Rodica Stoica-Negulescu
doaj   +1 more source

Notes on some Upper Jurassic Astrorhizidæ and Lituolidæ. [PDF]

open access: yesQuarterly Journal of the Geological Society of London, 1883
The latest researches on the arenaceous types of the Reticularian Rhizopoda from the Swiss Jurassic formation, especially from the zones of Ammonites transversarius and A. bimammatus , have yielded so many unexpected results concerning the relationship of certain species and varieties with ...
openaire   +2 more sources

New Early Jurassic thylacocephalan assemblage from the Western Carpathians in Slovakia [PDF]

open access: yesActa Palaeontologica Polonica
Thylacocephalans (Euarthropoda: Pancrustacea) are extinct marine pancrustaceans characterised by a folded shield, with fossils known from the Upper Ordovician to the Upper Cretaceous, reaching a diversity peak in the Triassic.
Alexis Gerbe   +2 more
doaj   +1 more source

Jurassic provenances and their transition mechanism of the Delingha Sag in the eastern segment of northern margin of the Qaidam Basin, North Tibet

open access: yesGeosystems and Geoenvironment, 2022
The Delingha Sag that witnessed the Indosinian, Yanshanian and Himalayan orogenies since the Mesozoic, is a potential petroliferous Meso-Cenozoic sag located in the eastern segment of the northern margin of the Qaidam Basin in North Tibet.
Huaiwei Feng   +5 more
doaj   +1 more source

SPINICAUDATANS FROM THE UPPER JURASSIC OF ARGENTINA AND THEIR PALEOENVIRONMENTS

open access: yesPALAIOS, 2016
Fil: Monferran, Mateo Daniel. Universidad Nacional del Nordeste; Argentina. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Nordeste. Centro de Ecologia Aplicada del Litoral. Universidad Nacional del Nordeste.
Monferran, Mateo Daniel   +4 more
openaire   +2 more sources

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