Buscar
Mostrando ítems 1-10 de 134
Petrogenesis of shield volcanism from the Juan Fernández Ridge, Southeast Pacific: Melting of a low-temperature pyroxenite-bearing mantle plume
(Elsevier Ltd, 2019)
© 2019 Elsevier LtdThe Juan Fernández Ridge (JFR) is an age-progressive volcanic chain (∼800 km long) related to a fixed mantle plume in the Southeast Pacific offshore central Chile. The high 3He/4He ratio (up to 18 times ...
Sr-Nd-Pb isotopic constraints on the nature of the mantle sources involved in the genesis of the high-Ti tholeiites from northern Paraná Continental Flood Basalts (Brazil)
(2013-10-01)
There has been little research on geochemistry and isotopic compositions in tholeiites of the Northern region from the Paraná Continental Flood Basalts (PCFB), one of the largest continental provinces of the world. In order ...
Sr-Nd-Pb isotopic constraints on the nature of the mantle sources involved in the genesis of the high-Ti tholeiites from northern Paraná Continental Flood Basalts (Brazil)
(2013-10-01)
There has been little research on geochemistry and isotopic compositions in tholeiites of the Northern region from the Paraná Continental Flood Basalts (PCFB), one of the largest continental provinces of the world. In order ...
Petrogenesis of middle proterozoic mafic dykes in the São Francisco Craton, Brazil: implications for a fossil mantle plume beneath the Northern Espinhaço RangePetrogenesis of middle proterozoic mafic dykes in the São Francisco Craton, Brazil: implications for a fossil mantle plume beneath the Northern Espinhaço Range
(Universidade de São Paulo, Instituto de Geociências, 1991)
Martin Vaz island geochronology: Constraint on the Trindade Mantle Plume track from the youngest and easternmost volcanic episodes
(Pergamon-Elsevier Science Ltd, 2021-03)
The oceanic basins are dotted by seamounts, guyots and islands formed by the mantle plumes and oceanic lithosphere interaction. These plumes are responsible for several intraplate volcanisms such as the Emperor-Hawaii Chain ...
Lava lamps as didatic experiment of mantle plumes simulationLâmpada de lava como experimento didático de simulação de plumas mantélicas
(Universidade Estadual de Campinas, 2019)
Application of stratigraphic frameworks and thermochronological data on the Mesozoic SW Gondwana intraplate environment to retrieve the Parana-Etendeka plume movement
(Elsevier B.V., 2020-08-01)
Since plate tectonics has been linked to material flow in the Earth's mantle, it is commonly accepted that convective motion in the sublithospheric mantle results in vertical deflections and horizontal plate motion on the ...
OCEANIC RIDGES, MAGMA FILLED CRACKS, AND MANTLE PLUMESOCEANIC RIDGES, MAGMA FILLED CRACKS, AND MANTLE PLUMES
(Instituto de Geofísica, 2013)
Contrasting tectonic settings in Northern Chon Aike Igneous Province of Patagonia: subduction and mantle plume-related volcanism in the Marifil formation
(Taylor & Francis, 2019-10-03)
The northern zone of the Chon Aike Igneous Province, located in the North Patagonian Massif,exhibits extensive outcrops of Jurassic volcanic rocks of the Marifil Formation. In the Arroyo Verdearea, the initial volcanic ...