Generation of a potassic to ultrapotassic alkaline complex in a syn-collisional setting through flat subduction: Constraints on magma sources and processes (Otjimbingwe alkaline complex, Damara orogen, Namibia)
Sign Up to like & getrecommendations! Published in 2020 at "Gondwana Research"
DOI: 10.1016/j.gr.2020.01.004
Abstract: Abstract The ~545 Ma-old syn-collisional Otjimbingwe alkaline complex is composed of pyroxene-amphibole-biotite-bearing, mildly nepheline-normative to quartz-normative rocks ranging in composition from monzogabbro to monzonite, syenite and granite. The alkaline rocks have moderate to high SiO2 (50.5–73.0 wt%)… read more here.
Keywords: otjimbingwe alkaline; subduction; alkaline; syn collisional ... See more keywords