Results 111 to 120 of about 9,182 (141)

Magmatismo Neoproterozoico calcoalcalino en el Antiforme del Narcea (N de España)

open access: yes, 2004
4 sequence of acid to basic igneous rocks is exposed within Neoproterozoic sediments of the Narcea Antiform (N of the Iberian Variscan Belt). Volcanic and volcanoclastic rocks, classically known as 'porphyroids', are rhyolites to andesites in composition. Cranodioritic to quartz-dioritic or gabbroic rocks are intrusive into the metasedimentary sequence
Cuesta, Andrés   +3 more
openaire   +1 more source

O magmatismo granitóide pós-orogênico: tipologia e aspectos genéticos

open access: yesBoletim IG-USP. Publicação Especial, 1991
V.A. Janasi, S.R.F. Vlach
openaire   +2 more sources

Complejo intrusivo La Majada (Sierras Pampeanas): magmatismo sintectónico en zonas de cizalla

open access: yes, 2008
2 páginas.-- Resumen de la 1ª Jornada Geológica de la Fundación Miguel Lillo, 22 de Junio de 2006.
Cisterna, Clara E.   +4 more
openaire   +1 more source

Magmatismo meso-cenozóico da região da Serra da Mantiqueira, SP/MG

open access: yesBoletim IG-USP. Publicação Especial, 1992
F.R. Alves, E. Ruberti, S.R.F. Viach
openaire   +2 more sources

Estudio geologico de la region entre Cuzco y Machu Picchu [PDF]

open access: yes, 1974
Garcia-Zabaleta, F., Marocco, René
core  

Tectónica y magmatismo Ordovícicos en el área de Sanabria, Macizo Ibérico

open access: yes, 2002
Structural and metamorphic criteria allow us to distinguish two units (Cneissic and Porphyroid) belonging to the Olio de Sapo formation in the Sanabria región. The high-grade gneissic unit and the lower Ordovician metasediments were brought together by a top-to-east extensional detachment with related flat-lying foliation. The low grade porphyroid unit,
openaire   +1 more source

Magmatismo acido e basico dei Colli Euganei e Berici

open access: yes
During Paleogene time in the Veneto region developed a magmatic province that involved four main areas: Lessini hills, Marostican hills, Euganean hills and Berici hills. This work is focused on Euganean and Berici areas. Euganean hills started their activity around 40 Gy ago (upper Eocene), and it’s possible to divide their activity in two stages: the ...
openaire   +1 more source

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