Essays about: "Eemu Ranta"

Found 1 essay containing the words Eemu Ranta.

  1. 1. Study of opaque phases in carbonatites of the Grønnedal-Íka alkaline complex, Southwest Greenland

    University essay from Stockholms universitet/Institutionen för geologiska vetenskaper

    Author : Eemu Ranta; [2015]
    Keywords : carbonatite; opaque phases; oxides; magnetite; hydrothermal fluids; Grønnedal-Íka; Greenland;

    Abstract : Opaque phases from carbonatites of the Grønnedal-Íka alkaline complex (1299±17 Ma) of Southwest Greenland were analyzed in terms of their mineralogy and microstructure. The analysis demonstrates that a later intrusion by a 55 m wide dolerite dyke of unknown age has prompted the mineralization of magnetite by activating hydrothermal fluid convection. READ MORE