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Progress in Earth and Planetary Science
Fig. 4 | Progress in Earth and Planetary Science

Fig. 4

From: Identifying tsunami traces beyond sandy tsunami deposits using terrigenous biomarkers: a case study of the 2011 Tohoku-oki tsunami in a coastal pine forest, northern Japan

Fig. 4

Gas chromatography of hydrocarbons (N1 fraction) at location A4. Numbers indicate n-alkanes (CnH2n+2) and ‘IS’ represents the 5α-cholestane internal standard. The retention time is the elapsed time at which the compound was detected. The flame ionization detector (FID) response represents signal intensity

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