O pórfiro dacítico de Valverde (Alcácer do Sal) idade Rb-Sr e suas implicações

  • A. V. Pinto Coelho
  • Cecília Abranches
  • M. H. Canilho

Abstract

Key-words: Vacite - Rb-Sr age - Upper Carboniferous - Valverde
(Alcácer do Sal) - Portugal.

The unexpected discovery of a small outcrop of igneous rock isolated within an extensive outcrop of Neogene and Quaternary sediments called for the attention of CEPUNL's researchers.
The rock is a dacite whose Rb-Sr age (C. A. and M. H. C.) is 291 M. y. upper Carboniferous. Hence the dacite may be related to volcanism in the Santa Suzana tectonic basin.

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Published
2009-03-10
How to Cite
PINTO COELHO, A. V.; ABRANCHES, Cecília; CANILHO, M. H.. O pórfiro dacítico de Valverde (Alcácer do Sal) idade Rb-Sr e suas implicações. Ciências da Terra / Earth Sciences Journal, [S.l.], v. 8, mar. 2009. ISSN 2183-4431. Available at: <http://cienciasdaterra.novaidfct.pt/index.php/ct-esj/article/view/93>. Date accessed: 13 june 2021.
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Articles