Contribuição à Geologia da Região de Frades, Município de Teresópolis (Rio de Janeiro) | Zendy

João Baptista de Oliveira e Souza Filho | Zendy; Benedito Souza Gomes | Zendy; Francisco José da Silva | Zendy

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Contribuição à Geologia da Região de Frades, Município de Teresópolis (Rio de Janeiro)

Author(s) -

João Baptista de Oliveira e Souza Filho,

Benedito Souza Gomes,

Francisco José da Silva

Publication year - 1977

Publication title -

anuário do instituto de geociências

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.202

H-Index - 12

eISSN - 1982-3908

pISSN - 0101-9759

DOI - 10.11137/1977_0_129-134

Subject(s) - migmatite , gneiss , geology , metamorphic rock , schist , humanities , geochemistry , geography , archaeology , art

A geological mapping at the scale 1:50,000 based on air photographs at the scale 1:20.000 is being held near Frades, a small village between Teresopolis and Nova Friburgo, State of Rio de Janeiro, Brazil. The main rock types are a coarse grained gneiss, migmatites and granites. The pigmatites exibits a dark differentiate (melanosome), sometimes widespread in area, which has been mapped as amphibolite sensu strictu. The latter, until now considered of magmatic origin, seems to have formed through migmatization processes.

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