Results 81 to 90 of about 68,583 (146)
Revista Mexicana de Ciencias Geológicas, 2019 La extensión sur de la Cordillera Occidental de Norte América, en el occidente de México, está integrada por terrenos acrecionados que conforman el superterreno Guerrero.
Paola Catalina Montaño-Cortes +2 more
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Composição isotópica Sr-Nd de granitos subalcalinos ferro-potássicos: o maciço granítico de Peneda-Gerês (NW Península Ibérica) [PDF]
, 2003 The Peneda-Gerês granitic massif is a good example of a post-tectonic Variscan massif. The granites are dominantly of subalkaline Fe-K affinity. The integration of geological, mineralogical, chemical and isotopic data suggests that this massif is the ...
Dias, G., Mendes, Anabela Carreira
core
The Montecristo mining district, northern Chile: the relationship between vein-like magnetite-(apatite) and iron oxide-copper-gold deposits. [PDF]
Miner Depos, 2023 Mateo L +5 more
europepmc +1 more source
Revista Mexicana de Ciencias Geológicas, 2014 Estudios geológicos multidisciplinarios realizados en rocas cartografiadas en el área de Sierra Pinta, en el NW de Sonora, que incluyeron geocronología U-Pb en zircones, estudios isotópicos de Sm-Nd en roca total y geoquímica de elementos mayores, traza ...
Harim E. Arvizu +7 more
doaj
3D gravity modelling of the Aguablanca Stock, tectonic control and emplacement of a Variscan gabbronorite bearing a Ni–Cu–PGE ore, SW Iberia [PDF]
, 2008 The Aguablanca stock is a Variscan mafic pluton located in the Ossa-Morena zone, southern Iberian Massif, hosting an unusual Ni–Cu–PGE mineralization associated with magmatic breccia pipes which intruded its northern part.
Bachiller +26 more
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O Grupo Araxá na região sul-sudoeste do Estado de Goiás
Geologia USP. Série Científica, 2013 Na região S - SW do Estado de Goiás, o Grupo Araxá é constituído por uma sequência de metassedimentos (granada-biotita-quartzo xistos, granada-biotita-quartzo xistos feldspáticos, granada-biotita-quartzo paragnaisses, com muscovita e localmente com ...
Guillermo Rafael Beltran Navarro +2 more
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U-Pb zircon and monazite geochronology of Variscan magmatism related to syn-convergence extension in Central Northern Portugal [PDF]
, 2005 The Viseu area is located in the Central Iberian Zone of the Iberian Variscan Belt and hosts numerous post-thickening, collision-related granitoids intruded into upper and middle crustal levels.
Acciaioli +49 more
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Paleomagnetic reconstruction of Coahuila, Mexico: The Late Triassic Acatita intrusives
Geofísica Internacional, 2005 La serie plutónica de Acatita intrusiona estratos del Paleozoico superior de la secuencia de la cuenca Las Delicias, en la porción sur de la plataforma de Coahuila, en el norte de México. Obtuvimos 96 muestras (15 sitios) de dos intrusivos en localidades
Roberto S. Molina Garza
doaj +1 more source
Geochimica Brasiliensis, 2017 The Serra da Bocaina Formation comprises Paleoproterozoic effusive and pyroclastic rocks displaying well preserved textures related to a plutonic-volcanic event recorded in the southern of the Amazonian Craton in the Rio Apa Terrane.
Cinthya Deus Souza +5 more
doaj +1 more source