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The lithospheric mantle as a source of magmas during orogenic processes: insights from high-K diorites in the Borborema Province and implications for continental dynamics
Abstract:
Incompatible-element-rich dioritic rocks are common in several Brasiliano/Pan-African belts. In the Borborema Province, northeastern Brazil, these rocks were emplaced in an intracontinental setting during regional deformation and intruded high-grade metamorphic rocks. The diorites have relatively high MgO (up to 7 wt %), FeOt (up to 10.6 wt %) and CaO (up to 8 wt %) together with high K
DOI:
10.3809/jvirtex.2004.00110