Results 31 to 40 of about 11,994 (188)

Paleomagnetism, rock magnetism and geochemical aspects of early Cretaceous basalts of the Paraná Magmatic Province, from Misiones, Argentina [PDF]

, 2006
The basalts of the Posadas Formation were extruded during the huge continental volcanism that affected the Parana Basin in the Lower Cretaceous. We have carried out a paleomagnetic and rock-magnetic study on samples collected along a basalt outcrop ...
Lagorio, Silvia Leonor, Mena, Mabel, Orgeira, Maria Julia   +2 more
core   +1 more source

Mantle heterogeneity during the formation of the North Atlantic Igneous Province: Constraints from trace element and Sr-Nd-Os-O isotope systematics of Baffin Island picrites [PDF]

, 2004
Sr-Nd-Os-O isotope and major and trace element data from ~62 Ma picrites from Baffin Island constrain the composition of mantle sources sampled at the inception of North Atlantic Igneous Province (NAIP) magmatism.
Eiler, J., Francis, D., Frei, R., Kent, A. J. R., Stolper, E. M., Woodhead, J.   +5 more
core   +1 more source

On the potential for CO₂ mineral storage in continental flood basalts – PHREEQC batch- and 1D diffusion–reaction simulations

Geochemical Transactions, 2012
Continental flood basalts (CFB) are considered as potential CO2 storage sites because of their high reactivity and abundant divalent metal ions that can potentially trap carbon for geological timescales.
Van Pham Thi, Aagaard Per, Hellevang Helge   +2 more
doaj   +1 more source

Asymmetric continental deformation during South Atlantic rifting along southern Brazil and Namibia [PDF]

, 2017
Plate restoration of South America and Africa to their pre-breakup position faces the problem of gaps and overlaps between the continents, an issue commonly solved with implementing intra-plate deformation zones within South America.
Koehn, Daniel, Passchier, Cees, Salomon, Eric   +2 more
core   +1 more source

Continental Flood Basalts

Eos, Transactions American Geophysical Union, 1991
Continental flood basalts have been receiving considerable scientific attention lately. Recent publications have focused on several particular flood‐basalt provinces (Brito‐Arctic, Karoo, Parana', Deccan, and Columbia Plateau), and much attention has been given to the proposed connection between flood‐basalt volcanism, bolide impacts, and mass ...
openaire   +1 more source

Continental Flood Basalts and Rifting: Geochemistry of Cenozoic Yemen Volcanic Province

International Journal of Geosciences, 2013
Rift formation is a crucial topic in global tectonics. The Yemen rift-related area is one of the most important provinces, being connected to the rifting processes of the Gulf of Aden, the Red Sea and Afar Triangle. In this paper, a review of the Yemen volcanic province and its relations with the Red Sea rifting are presented.
Mattash M. [1, 2], Pinarelli L. [3], Vaselli O. [3, 4], Minissale A. [3], Al-Kadasi M. [5], Shawki M. [6], Tassi F. [3, 4]   +9 more
openaire   +6 more sources

Geology and stratigraphy of the Southern Main Ethiopian Rift (East African Rift System)

Journal of Maps
A new geological map of the northern sector of the Southern Main Ethiopian Rift is presented, providing unique insights into the processes driving continental rifting (ca. 45 Ma to the present).
Štěpán Dvořák, Kryštof Verner, David Buriánek, Leta A. Megerssa, Jan Valenta, Zoltán Pécskay, Petra Hejtmánková, Jan Jelének, Karel Martínek, Otmar Petyniak, Barbora Paulusová   +10 more
doaj   +1 more source

High- and Low-Ti tholeiites in the Eastern Parnaíba Basin: Regional correlations with Mesozoic large igneous provinces [PDF]

Brazilian Journal of Geology
Two tholeiitic magmatic events are recorded at the Eastern Border of the Parnaíba Basin comprising the Jurassic Mosquito Formation and the Cretaceous Sardinha Formation.
Cícera Neysi de Almeida, Julio Cezar Mendes, Sérgio de Castro Valente, Francisco de Assis Negri, Alan Miranda, Artur Corval Vieira, Sílvia Regina de Medeiros, Leonardo Borghi, Pedro Miloski, Mayara Cardoso, Juliana Godot   +10 more
doaj   +1 more source

Tracking the Pliensbachian-Toarcian Karoo firewalkers: Trackways of quadruped and biped dinosaurs and mammaliaforms.

PLoS ONE, 2020
The Karoo igneous rocks represent one of the largest continental flood basalt events (by volume) on Earth, and are not normally associated with fossils remains.
Emese M Bordy, Akhil Rampersadh, Miengah Abrahams, Martin G Lockley, Howard V Head   +4 more
doaj   +1 more source

Geochemistry of the Northern Paraná Continental Flood Basalt (PCFB) Province: implications for regional chemostratigraphy

Brazilian Journal of Geology
: The Paraná Continental Flood Basalt (PCFB) province is one of the largest igneous provinces on Earth, but little is known about the architecture and geochemical characteristics of the lava flows.
Fábio Braz Machado, Eduardo Reis Viana Rocha-Júnior, Leila Soares Marques, Antonio José Ranalli Nardy, Larissa Vieira Zezzo, Natasha Sarde Marteleto   +5 more
doaj   +1 more source