Piroxenos relictosuna clave para la interpretación del vulcanismo en la Faja Pirítica Ibérica

  1. M.L. Fernández-Martín 1
  2. R Sáez 1
  3. E. Pascual 1
  1. 1 Departamento de Geología. Universidad de Huelva.
Aldizkaria:
Geogaceta

ISSN: 0213-683X

Argitalpen urtea: 1996

Zenbakia: 20

Orrialdeak: 568-571

Mota: Artikulua

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Beste argitalpen batzuk: Geogaceta

Laburpena

Relict clinopyroxenes from strongly altered basalts sampled in the Sotiel-Torerera area (central sector of the Iberian Pyrite Belt, southwestern lberian Massif, Spain), have been analysed by EMP. lt has been found that clinopyroxene cores are Ti-rich, representing the pyroxene compositions equilibrated with basaltic magma. An alkaline magma character is consequently deduced. Finally, it is suggested that datafrom relict minerals may indicate the original magma character better than whole-rock geoshemistry, in this and other cases in which rock alteration is both intense and polyphased.

Datuen iturria: Dialnet