Sökning: "Vaalbara"

Hittade 2 uppsatser innehållade ordet Vaalbara.

1. 1. U-Pb baddeleyite dating of intrusions in the south-easternmost Kaapvaal Craton (South Africa) : revealing multiple events of dyke emplacement

   Master-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Emilie Larsson; [2015]
   Nyckelord :U-Pb; baddeleyite; Kaapvaal Craton; mafic dykes; geochronology; Earth and Environmental Sciences;

   Sammanfattning : This study presents U-Pb baddeleyite ages for five dolerite dykes and one sill in the Mesoarchean granitic basement of south-easternmost Kaapvaal Craton in northern KwaZulu-Natal, South Africa. The oldest dyke is ENE-trending, and is dated to 2729 ± 5 Ma. LÄS MER

3. 2. U-Pb geochronology and paleomagnetism of the Westerberg sill, Kaapvaal Craton : support for a coherent Kaapvaal-Pilbara block (Vaalbara)

   Master-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Tobias Christoph Kampmann; [2012]
   Nyckelord :Kaapvaal; Pilbara; Vaalbara; baddeleyite; U-Pb geochronology; paleomagnetism; continental reconstruction; Earth and Environmental Sciences;

   Sammanfattning : .... LÄS MER