Sökning: "North Atlantic craton"

Hittade 2 uppsatser innehållade orden North Atlantic craton.

1. 1. The Birimian event in the Baoulé Mossi domain (West African Craton) : regional and global context

   Master-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Mikael Grenholm; [2014]
   Nyckelord :accretionary orogen; Atlantica; Birimian event; supercontinent cycle; Lomagundi-Jatuli event; Earth and Environmental Sciences;

   Sammanfattning : The crystalline basement of the West African Craton (WAC) was established during the Siderian to Orosirian (circa 2.35-1.95 Ga) Birimian event through accretion of extensive tracts of juvenile crust that was tectonically juxtaposed with Archean cratons. LÄS MER

3. 2. Robust U-Pb baddeleyite ages of mafic dykes and intrusions in southern West Greenland : constraints on the coherency of crustal blocks of the North Atlantic Craton

   Magister-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Mimmi Nilsson; [2009]
   Nyckelord :geography; geology; West Greenland; mafic dykes; U-Pb baddeleyite; crustal blocks; North Atlantic craton; Earth and Environmental Sciences;

   Sammanfattning : Popul�rvetenskaplig sammanfattning: Studien �r en del av ett st�rre projekt (LIP-projektet) som syftar till att med hj�lp av exakta dateringar av diabasg�ngar rekonstruera kontinenternas l�ge f�r c:a 2.5 miljarder �r sedan. LÄS MER