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

  1. González Roldán, Manuel
Dirigida per:
  1. Teodosio Donaire Romero Director
  2. Emilio Pascual Martínez Director/a

Universitat de defensa: Universidad de Huelva

Fecha de defensa: 17 de de març de 2010

Tribunal:
  1. Gabriel Ruiz de Almodóvar Sel President/a
  2. María José Huertas Coronel Secretari/ària
  3. David Orejana García Vocal
  4. Christian Pin Vocal
Departament:
  1. CIENCIAS DE LA TIERRA

Tipus: Tesi

Teseo: 290057 DIALNET lock_openArias Montano editor

Resum

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.