Browsing by Author "Faber, Carly"

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    Processes of felsic melt migration through the mid-crust : evidence from field relations in the central zone of the Damara Belt, Namibia
    (2012) Faber, Carly; Diener, Johann
    The migration of granitic melt is the main mechanism that facilitates upward movement of heat and mass, and the chemical differentiation of the continental crust. Whereas the processes of melt segregation and emplacement are relatively well understood, melt ascent mechanisms are more speculative. Specific outstanding questions include the structure of melt conduits, the driving forces of melt ascent, and the timescales involved. The Central Zone of the Damara Belt presents a snapshot of melt migration through subsolidus, mid-crustal rocks. Outcrops selected for detailed investigation are representative of a variety of mestasedimentary rock types and strain environments, and all contain pervasive and interconnected leucosome networks representative of melt movement through, and emplacement into these rocks.