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Constraints on the origin and evolution of magmas in the Payún Matrú Volcanic Field, Quaternary andean back-arc of western Argentina
(Oxford University Press, 2013-12-11)
The Payún Matrú Volcanic Field (Pleistocene–Holocene) is located in the Andean back-arc of the Southern Volcanic Zone, western Argentina, and is contemporaneous with the Andean volcanic arc at the same latitude. It includes ...
Basalto alcalino portador de xenolitos ultramáficos en Tierra del FuegoAlkaline basalt with ultramafic xenoliths in Tierra del Fuego
(Asociación Geológica Argentina, 2004-12)
En el extremo sur de Tierra del Fuego han sido descubiertas rocas basáltico alcalinas con enclaves ultramáficos. Los pequeños cuerpos de basalto alcalino hasta aquí conocidos son escasos y las rocas circundantes están ...
Bimodal back-arc alkaline magmatism after ridge subduction: Pliocene felsic rocks from Central Patagonia (47 degrees S)
(ELSEVIER, 2008-03)
Volumetrically minor microsyenites, alkali microgranite and related trachytic dykes intrude early Pliocene OIB-like alkali basaltic and basanitic flows of the Meseta del Lago Buenos Aires in Central Patagonia (47 degrees ...
Modern analogues for Miocene to Pleistocene alkali basaltic phreatomagmatic fields in the Pannonian Basin: "Soft-substrate" to "combined" aquifer controlled phreatomagmatism in intraplate volcanic fields
(De Gruyter, 2010-09)
The Pannonian Basin (Central Europe) hosts numerous alkali basaltic volcanic fields in an area similar to 200 000 km2. These volcanic fields were formed in an approximate time span of 8 million years producing smallvolume ...
Ge-Si and Ga-Al fractionation in Hawaiian volcanic rocks
(Geochimica et Cosmochimica ActaBrasil, 1978)
Ge and Ga abundances in 19 petrologically and geochemically well-documented Hawaiian volcanic rocks were determined simultaneously by radiochemical neutron activation analysis. The data demonstrate a close affinity of Ga ...