Zobrazeno 1 - 10
of 107
pro vyhledávání: '"Silvio Roberto Farias Vlach"'
Autor:
Augusto Gonçalves Nobre, Fabio Ramos Dias de Andrade, Andres Fabian Salazar-Naranjo, Josue Neroti Rigue, Ricardo Barreto da Silva, Silvio Roberto Farias Vlach, Romulo Augusto Ando
Publikováno v:
C, Vol 9, Iss 3, p 75 (2023)
The electrical properties of isolated graphene established precedents for studies of electrical superconducting materials at room temperature. After the discovery of stabilized graphene and graphite nanoplatelets in a geological context, the interest
Externí odkaz:
https://doaj.org/article/7931c1da29e54955b12ab5c06b7bca4f
Publikováno v:
Brazilian Journal of Geology, Vol 51, Iss 4 (2022)
Abstract We present new high-resolution 40Ar/39Ar ages for alkaline layered gabbros and cross-cutting mafic-ultramafic and felsic dykes from the São Sebastião Island, in the northern sector of the Serra do Mar Alkaline Province, São Paulo, Brazil.
Externí odkaz:
https://doaj.org/article/32a899fa967848a7907c454f0270aea3
Publikováno v:
Geologia USP. Série Científica, Vol 19, Iss 4 (2019)
Jurassic granites (sensu lato) and related rocks are the most abundant rocks cropping out in the Eastern Cordillera of Colombia in the northern Andes. We present an attempt to map and characterize in detail the petrographic diversity of the Jurassic
Externí odkaz:
https://doaj.org/article/4d0302ea63304e20b015ca37776fa992
Autor:
Silvio Roberto Farias Vlach, Andrés Fabián Salazar-Naranjo, Johan Santiago Torres-Corredor, Paulo Rafael de Carvalho, Guilherme Mallmann
Publikováno v:
Brazilian Journal of Geology, Vol 49, Iss 1 (2019)
Abstract We present pressure calibration results for piston-cylinder –” and 1” high temperature furnace assemblies in the 200-600 MPa range aiming to expand its applicability to simulate upper crustal conditions. The furnace assemblies were mad
Externí odkaz:
https://doaj.org/article/936eb103f5ea4db0be7bc6617db9d2d9
Autor:
Nélson Angeli, Guillermo Rafael Beltran Navarro, Antenor Zanardo, Silvio Roberto Farias Vlach
Publikováno v:
Geologia USP. Série Científica, Vol 10, Iss 1, Pp 87-99 (2010)
Metaultramafi c bodies tectonically emplaced within the metasedimentary sequence of the Araxá Group are associatedwith an ophiolitic melange in southeast Goiás. In the region of Cromínia - Mairipotaba, they occur as lenticular bodiesaligned E-W. C
Externí odkaz:
https://doaj.org/article/d3d86ba75232487fa0e9801fe19b3820
Autor:
Silvio Roberto Farias Vlach
Publikováno v:
Geologia USP. Série Científica, Vol 10, Iss 1, Pp 61-85 (2010)
Dating methodology by the electron probe microanalyser (EPMA) of (Th, U)-bearing minerals, highlighting monazite,acquired greater than ever importance in literature, particularly due to its superior spatial resolution, as well as versatility,which al
Externí odkaz:
https://doaj.org/article/3d82094adeda4da2b421ba8aa30d4370
Autor:
Mario da Costa Campos Neto, Miguel Angelo Stipp Basei, Silvio Roberto Farias Vlach, Renaud Caby, Gergely Andrés Julio Szabó, Paulo Vasconcelos
Publikováno v:
Geologia USP. Série Científica, Vol 4, Iss 1, Pp 13-40 (2004)
O Orógeno Tocantins Meridional representa a pilha colisional de nappes entre três ambientes tectônicos principais (deWSW para ENE): domínio de arco magmático desenvolvido na margem continental ativa da Placa Paranapanema (NappeSocorro-Guaxupé),
Externí odkaz:
https://doaj.org/article/3e1dbfeab6ef40fbbb82cbb01d0874c7
Publikováno v:
Geologia USP. Série Científica, Vol 3, Pp 13-24 (2003)
O Domínio Embu, na porção central da Faixa Ribeira no Estado de São Paulo, abriga inúmeras ocorrências de intrusõesgraníticas neoproterozóicas. Peculiar é a abundância de granitos marginal a francamente peraluminosos, que formam dezenas de
Externí odkaz:
https://doaj.org/article/acfc212cfd1d4414a7ad159fd4819c1f
Publikováno v:
Geologia USP. Série Científica, Vol 2, Pp 9-22 (2002)
Idades de cristalização de monazita presente em duas variedades de gnaisses aluminosos das regiões de Jacurici e Ilhéus,respectivamente ao norte e ao sul do Sistema Orogênico Itabuna-Salvador-Curaçá (BA) foram determinadas através do métodoT
Externí odkaz:
https://doaj.org/article/88655474df0f4360a03d3d1447617117
Autor:
Silvio Roberto Farias Vlach
Publikováno v:
Geologia USP. Série Científica, Vol 10, Iss 1 (2010)
A metodologia de datação de minerais portadores de Th e/ou U com microssonda eletrônica (EPMA), com ênfase em monazita, adquiriu enorme importância em literatura, devido a sua alta resolução espacial e versatilidade, que permitem correlacionar
Externí odkaz:
https://doaj.org/article/8507cd242f954eda8033a5cb7e72b6da