Figure 4. Representative photomicrographs (a,b,c,d) showing some textures and the mineralogical associations. Microlitic texture averagely porphyric (a, sample TA9) and doleritic (b, sample ZB5) in a basalt; aphyric texture (c, sample ZB7); zoned phenocrysts (d, ZB59) and twinning (e,f. ZB2) in transitional basalts with porphyric texture

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Transitional Basalts and Eruptive Dynamisms around Nkoumelap Locality (West of the Bamoun Plateau, Cameroon Volcanic Line): Petrography and Volcanic Risks’ Evaluation

Luc Achille ZIEM A BIDIAS, Amidou MOUNDI, Jonas Didero TAKODJOU WAMBO

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