Estaurolita rica en Zn en las metapelitas de bajo grado de la Unidad de Salobreña (Complejo Alpujárride)

• Autores: José Miguel Azañón Hernández, Juan Ignacio Soto Hermoso
• Localización: Geogaceta, ISSN 0213-683X, Nº. 14, 1993, págs. 143-145
• Idioma: español
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• Resumen

  • Zn-rich staurolite has been found in a metapelite rock with low-grade metamorphic assemblage, in the Salobreña Unit (Alpujárride Complex, Betic Cordillera). The chemical composition (4-6 wt.% ZnO) and the textural relationships of the Zn-rich staurolite are described. Estimated conditions of P=8-4 Kb and T=425-475°C for the staurolite growth episode are proposed. The relatively high Zn concentration in the studied staurolite could be a determinant factor for the stabilization of this mineral at low temperature.