Composición isotópica de polimorfos de sílice hidrotermal en la región volcánica de Cabo de Gata (Almería)

• Autores: Antonio Delgado Huertas, R. Nuñez, Emilio Reyes Camacho
• Localización: Boletín de la Sociedad Española de Mineralogía, ISSN 0210-6558, Vol. 15, Nº. 1, 1992, págs. 161-165
• Idioma: español
• Enlaces
  • Texto Completo Ejemplar
• Resumen

  • Oxigen isotope ratios were measured for hydrothermal silica from Cabo de Gata region. The d18O values of the ten analyzed silica (quartz, tridimite-cistobalite) range from 21, 04 to 29, 77 %. Processes caused by low-temperature fluids of meteoric origin could account for the stable isotopic contents. The diferences in d18O values are attributed to variation in hydrothermal temperature, but some variability in oxygen isotopic composition of the water is possible.