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Fig. 5 | Earth, Planets and Space

Fig. 5

From: Mineralogical study on volcanic ash of the eruption on September 27, 2014 at Ontake volcano, central Japan: correlation with porphyry copper systems

Fig. 5

Cross section of Ontake volcano showing models of basement rock types, ancestral and present edifice based on Yamada and Kobayashi (1988). Alteration zones underlying the edifice are modified from Sillitoe (2010) to estimate the source depth of the volcanic ash. The dashed line indicates possible regions of the source of the volcanic ash

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