Results 31 to 40 of about 1,568 (161)

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

Geological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito, Cristiano Leite Sombra, Davy Raeder Brandão, Cleverson Guizan Silva, Sidney Luiz de Matos Mello, Eugênio Vaz dos Santos Neto, Rui Jorge Fernandes Baptista, Ramsés Capilla, Luiz Antônio Pierantoni Gambôa   +8 more
wiley   +1 more source

Umbria-Marche Basin, Central Italy: A Reference Section for the Aptian-Albian Interval at Low Latitudes

Scientific Drilling, 2012
Within the Cretaceous Period, the Aptian-Albian interval (125–99.6 Ma, Ogg et al., 2008) was a critical time on a global scale. This is evident from 1) changes in the nature of the ocean-climate system brought about by increased ocean crust production ...
Renato Paes de Almeida, Grasiane Luz Mathias, Jairo Savian, Liliane Janikian, Fabrizio Frontalini, Gerson Fauth, Carla Bucci, Giuseppe Bancalà, Luigi Jovane, Rodolfo Coccioni, Ricardo Ivan Ferreira da Trindade   +10 more
doaj   +1 more source

The predatory behavior of ants: an impressive panoply of morphological adaptations

Insect Science, EarlyView.
This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Alain Dejean, Xim Cerdá, Jérôme Orivel, Frédéric Azémar, Alexander L. Wild, Bruno Corbara, Axel Touchard   +6 more
wiley   +1 more source

Albian bivalves from Madiela Formation in north Gabonese coastal basin

BSGF - Earth Sciences Bulletin, 2019
A study of Albian bivalves from Madiela Formation in north of Gabonese coastal basin has been carried out from N’Toum quarry geological section. Four genera including six species are identified: Liopistha (Psilomya) sp. 1, ? Liopistha (Psilomya) sp.
Musavu Moussavou Benjamin
doaj   +1 more source

Divergent defense strategies and niche partitioning in Cretaceous micro‐beetles

Journal of Systematics and Evolution, EarlyView.
We report a new clambid beetle from mid‐Cretaceous Kachin amber, Scutacalyptus kolibaci gen. et sp. nov., characterized by a flattened body and explanate margins. Alongside spiny and conglobating clambid forms, this diversity reflects niche partitioning and varied antipredator strategies in the Cretaceous forest floor.
Yan‑Da Li, Zhi‐Hao Qi, Di‑Ying Huang, Chen‑Yang Cai   +3 more
wiley   +1 more source

Correction to: Aptian–Albian shale oil unconventional system as registration of Cretaceous oceanic anoxic sub-events in the southern Tethys (Bir M’Cherga basin, Tunisia)

Journal of Petroleum Exploration and Production Technology, 2018
In the original publication, article title has been incorrectly published as “Aptian–Albian oil shale unconventional system as registration of Cretaceous oceanic anoxic sub-events in the southern Tethys (Bir M’Cherga basin, Tunisia)” instead of Aptian ...
Rachida Talbi, Rached Lakhdar, Amor Smati, Reginal Spiller, Raymond Levey   +4 more
doaj   +1 more source

The making of pure quartzose sand in continental interiors: Paraná River (Brazil and Argentina)

Sedimentology, EarlyView.
ABSTRACT As part of a comprehensive project on sedimentary processes in South America, this study focuses on sediment generation in the intracratonic Paraná Basin and monitors the evolution of sand composition along the Paraná River from central Brazil to the Río de la Plata estuary in Argentina.
Eduardo Garzanti, Marta Barbarano, Mara Limonta, Guido Pastore, Pieter Vermeesch, Giovanni Vezzoli   +5 more
wiley   +1 more source

A combination of genetic inversion and seismic frequency attributes to delineate reservoir targets in offshore northern Orange Basin, South Africa

Open Geosciences, 2020
The reported occurrence of Albian- and Cenomanian-aged braided fluvio-deltaic channels in the Orange Basin, South Africa, opens a window of exploration activities to characterize these channels as they are renowned to form some of the world’s giant oil ...
Samakinde Chris Adesola, van Bever Donker Jan Marinus, Fadipe Oluwaseun Adejuwon   +2 more
doaj   +1 more source

Late Middle–early Late Albian ammonites from Ecuador

Cretaceous Research, 2005
Ammonites of the Albian genera Brancoceras, Dipoloceras, Mortoniceratoides and Neophlycticeras are described and illustrated for the first time from Ecuador. Precise stratigraphic distribution in the Rio Misahuali field section allows delineation of the Middle/Upper Albian boundary in the Oriente of Ecuador through the recognition of the Dipoloceras ...
Bulot, Luc Georges, Kennedy, W.J., Jaillard, Etienne, Robert, Emmanuel   +3 more
openaire   +4 more sources

Two new long-rostrum cranefly species from the Cretaceous Iberian amber (Diptera, Limoniidae, Helius)

Scientific Reports, 2021
First record of the genus Helius—long-rostrum cranefly from Maestrazgo Basin (eastern Spain, Iberian Penisula) is documented. Two new fossil species of the genus Helius are described from Cretaceous Spanish amber and compared with other species of the ...
Iwona Kania-Kłosok, Wiesław Krzemiński, Antonio Arillo   +2 more
doaj   +1 more source