Mineralogía, petrología y geoquímica de intrusiones sin-volcánicas en el distrito minero de Skellefte, Norte de Suecia

  1. González Roldán, Manuel
unter der Leitung von:
  1. Teodosio Donaire Romero Doktorvater
  2. Emilio Pascual Martínez Doktorvater/Doktormutter

Universität der Verteidigung: Universidad de Huelva

Fecha de defensa: 17 von März von 2010

Gericht:
  1. Gabriel Ruiz de Almodóvar Sel Präsident/in
  2. María José Huertas Coronel Sekretär/in
  3. David Orejana García Vocal
  4. Christian Pin Vocal
Fachbereiche:
  1. CIENCIAS DE LA TIERRA

Art: Dissertation

Teseo: 290057 DIALNET lock_openArias Montano editor

Zusammenfassung

The Skellefte mining distric is one of the most important mining regions in Sweden, located in the Proterozoic island-arc (1.90-1.87 Ga) of the Baltic Shield, Northern Sweden. Three main intrusive stages have been determined in the Jörn Granitoid Complex (JGC). The first stage of GI tonalites (1885 Ma) includes the satellite intrusions and with calc-alkaline character; the second stage (1875 Ma) corresponding to the alkaline-calcic GII (granodiorites and qz-monzodiorites) intrusions and associated Näsbeerget layered intrusions; finally the granites and GIII and GIV intrusive facies are systematic, regarding to mineralogy, texture, alteration, metamorphism, lithogeochemical character and age. In particular, the lithogeochemical differences suggest an important variation in the magma type.