Results 11 to 20 of about 114,172 (349)

The birth of the Sava Suture Zone: The early geological observations and the context of bimodal magmatism (southern Belgrade outskirts; Anđelković, 1973) [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2022
This paper presents one of the significant results of the research of Prof. Dr. Milodrag Anđelković. The study underlines the first field record providing the evidence of the Upper Cretaceous bimodal magmatism that eventually led towards the definition ...
Spahić Darko
doaj   +1 more source

Ecomorphological diversification of squamates in the Cretaceous [PDF]

open access: yesRoyal Society Open Science, 2021
Squamates (lizards and snakes) are highly successful modern vertebrates, with over 10 000 species. Squamates have a long history, dating back to at least 240 million years ago (Ma), and showing increasing species richness in the Late Cretaceous (84 Ma ...
Jorge A. Herrera-Flores   +2 more
doaj   +1 more source

Volcanic complexes and tecton-magmatic stages of the evolution of the Magellan Seamounts (Pacific Ocean). Message 1: Volcanic complexes

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2022
The paper presents original and published data of radioisotope dating of volcanic rocks of the Magellan Seamounts. These data and available geological materials allow us to distinguish five major volcanic complexes of different ages in the guyots of the ...
Syedin V.T.   +2 more
doaj   +1 more source

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+18 more sources

A new hadrosauroid dinosaur from the early late cretaceous of Shanxi Province, China. [PDF]

open access: yesPLoS ONE, 2013
BackgroundThe origin of hadrosaurid dinosaurs is far from clear, mainly due to the paucity of their early Late Cretaceous close relatives. Compared to numerous Early Cretaceous basal hadrosauroids, which are mainly from Eastern Asia, only six early Late ...
Run-Fu Wang   +7 more
doaj   +1 more source

Volcanic complexes and tectonic-magmatic stages of the evolution of the Guyots of the Magellan Seamounts (Pacific Ocean). Communication 2: Tectono-magmatic stages

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2023
Five tectonic-magmatic stages are distinguished in the evolution of the guyots of the Magellan Seamounts: 1 — Late Jurassic-Early Cretaceous (earliest Cretaceous — ~160–140 (?) Ma); 2 — Early Cretaceous (Late Barremian(?)-Aptian-Albian — ~127–96 Ma); 3 —
V.T. S'edin   +2 more
doaj   +1 more source

A turiasaurian sauropod dinosaur from the Early Cretaceous Wealden Supergroup of the United Kingdom [PDF]

open access: yesPeerJ, 2019
The Jurassic/Cretaceous (J/K) boundary, 145 million years ago, has long been recognised as an extinction event or faunal turnover for sauropod dinosaurs, with many ‘basal’ lineages disappearing.
Philip D. Mannion
doaj   +2 more sources

Sedimentary and Source-to-Sink Evolution of Intracontinental Basins: Implications for tectonic and Climate Evolution in the Late Mesozoic (Southern Junggar Basin, NW China)

open access: yesFrontiers in Earth Science, 2022
Sedimentary investigations, petrography, heavy mineral and conglomerate component analyses, and detrital zircon U-Pb geochronology were conducted to reconstruct the sedimentary and source-to-sink evolution of the Southern Junggar Basin, an ...
Xutong Guan   +4 more
doaj   +1 more source

Modeling of Tectonic-Thermal Evolution of Cretaceous Qingshankou Shale in the Changling Sag, Southern Songliao Basin, NE China

open access: yesFrontiers in Earth Science, 2021
A series of significant shale oil discoveries have been made recently in the Upper Cretaceous Qingshankou Formation in the Songliao Basin, providing a new resource target for shale oil exploration in Northeast China.
Yuchen Liu   +11 more
doaj   +1 more source

Late Maastrichtian pterosaurs from North Africa and mass extinction of Pterosauria at the Cretaceous-Paleogene boundary. [PDF]

open access: yesPLoS Biology, 2018
Pterosaurs were the first vertebrates to evolve powered flight and the largest animals to ever take wing. The pterosaurs persisted for over 150 million years before disappearing at the end of the Cretaceous, but the patterns of and processes driving ...
Nicholas R Longrich   +2 more
doaj   +1 more source

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