Fig. 5: Stratigraphic log of the chosen sections and GSD diagrams. | Communications Earth & Environment

Fig. 5: Stratigraphic log of the chosen sections and GSD diagrams.

From: Trigger mechanism and propagation dynamics of pyroclastic density currents at basaltic volcanoes

Fig. 5

a Image showing representative stratigraphic log of the analyzed sections. b GSD diagrams for selected sections in each FS. The Unit A for FS1 has been selected from another section because it is not fully exposed. c The diagram reports the Md (φ) vs σ (φ) variations for all analyzed samples. d Frequency of reddish and gray clasts vs scoriaceous and juvenile particles.

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