volcanisme (1) spectacle (1) pyrolyse (1) pollen (1) information (1) environnement (1) âge (1) Afrique Centrale (1) matière organique (1) Afrique (1) Context (1) Age determination (1) Antiquities, Prehistoric (1) Volcanism (1) Units of measurement (1) Tops (1) Series (1) Sandstone (1) Records (1) Pyrolysis (1) Pollen (1) Palynology (1) Nature and nurture (1) Prehistoric peoples (1) Evidence (1) Euthenics (1) Ecology (1) Green algae (1) Atlantic Ocean (1) Age (1)