Trace element variations in clinopyroxene and amphibole from alkaline to peralkaline syenites and granites : implications for mineral – melt trace-element partitioning B

  title={Trace element variations in clinopyroxene and amphibole from alkaline to peralkaline syenites and granites : implications for mineral – melt trace-element partitioning B},
  author={Michael Marks and Ralf Halama and Thomas Wenzel and Gregor Markl},
Trace element compositions of clinopyroxene and amphibole from three rift-related alkaline to peralkaline igneous complexes (syenites and granites) in South Greenland reflect evolving magma composition as well as crystal-chemical control on partitioning. Clinopyroxenes and amphiboles evolve from Ca–Mg-dominated members via intermediate to Na–Fedominated members. Most trace elements are highly enriched compared to primitive mantle values, consistent with the highly fractionated character of the… CONTINUE READING


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