Fig. 3
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Field and petrographic photos of the NNW-NNE Libiri swarm: (a and b) outcrop mode of doleritic dykes from this swarm and (c, d, e and f) microphotographs showing typical textures and representative minerals in both petrographic types. Pl: plagioclase, Opx: orthopyroxene, Cpx: clinopyroxene, Amph: amphibole, Chl: chlorite, Ap: apatite, Ox: Fe-Ti oxides, Ep: epidote.
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