Results 1 to 10 of about 5,572 (118)

Petrographical Analysis of Warthian Fuvioglacial Gravels as a Tool to Trace the Source Area – A Case Study From Central Poland [PDF]

open access: yes, 2014
The petrographical features of the medium- and coarse-grained gravels (4-10 mm and 20-60 mm, respectively) of weathered and fresh (unweathered) deposits indicate, in combination with so-called indicator and statistical erratics, that two glacial lobes ...
Górska-Zabielska, Maria   +1 more
core   +2 more sources

Petrografia e Geoquímica de Rochas Metamáficas e Metaultramáficas da região de Cambuci, Rio de Janeiro [PDF]

open access: yes, 2011
No norte do estado do Rio de Janeiro são encontradas ocorrências localizadas de corpos de rochas máficas e ultramáficas variavelmente deformadas e metamorfisadas.
Jorge Costa de Moura   +2 more
core   +2 more sources

Contributi italiani alla nascita della Petrografia

open access: yesBullettin of the Gioenia Academy of Natural Sciences of Catania, 2017
Verso la fine del XVIII e nei primi decenni del XIX secolo alcuni esperti italiani nella prospezione e sfruttamento minerario ed interessati nelle Scienze della Terra, G. Arduino, G. Marzari Pencati, G. Brocchi, e S. Breislak, hanno correttamente riconosciuto in base ad osservazioni sul campo la natura che oggi definiremmo magmatica di corpi sia ...
Cirrincione R., CRISTOFOLINI, Renato
openaire   +4 more sources

Petrografia dos mármores de Caçapava do Sul, RS [PDF]

open access: yesCiência e Natura, 1987
The Caçapava do Sul region, State of Rio Grande do Sul, is characterized by the occurrence of a granitic batholith (Caçapava Granite), that has an outcrop of about 25 by 10 km, oriented North- South. The Caçapava Granite is surrounded by a belt of metamorphites belonging to the Porongos Group, assigned to Upper Precanbrian by RIBEIRO et alii: (1966 ...
openaire   +1 more source

Structural and geochemical considerations about the sedex and volcanic affiliation of some metamorphic units of Arga Range – Northern Portugal: consequences to geological mapping [PDF]

open access: yes, 2013
Dados de petrografia e geoquímica adquiridos para um conjunto de litótipos de natureza vulcanogénica, agora atribuídos à unidade cartográfica que se designa de Formações do Domo de Covas, permitem colocar em evidência um carácter de transição entre ...
Dias, Patrícia Sofia Alves   +1 more
core  

El XVII Congrés Geològic Internacional [PDF]

open access: yes, 1938
Peer ...
Candel i Vila, Rafael
core  

High-frequency cyclicity in the Mediterranean Messinian evaporites: evidence for solar-lunar climate forcing [PDF]

open access: yes, 2012
The deposition of varved sedimentary sequences is usually controlled by climate conditions. The study of two Late Miocene evaporite successions (one halite and the other gypsum) consisting of annual varves has been carried out to reconstruct the ...
Gennari, Rocco   +5 more
core   +2 more sources

Stratigraphic variations control deformation patterns in evaporite basins : Messinian examples, onshore and offshore Sicily (Italy) [PDF]

open access: yes, 2014
Acknowledgements and Funding We are grateful to Ente Minerario Siciliano and Italkali for the provision of extensive subsurface data from Realmonte, Corvillo and Mandre areas. We thank F. Peel and an anonymous referee for comments.
Butler, Robert W. H.   +3 more
core   +1 more source

Química mineral de encraves ultramáficos nas lavas da erupção de 2014 na Ilha do Fogo (Cabo Verde) : resultados preliminares [PDF]

open access: yes, 2015
Resumo ...
Caldeira, Rita   +5 more
core  

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