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Fig. 1 | Progress in Earth and Planetary Science

Fig. 1

From: Seismic and inter-seismic ground surface deformations of the Murono mud volcano (central Japan): a laser scanning approach

Fig. 1

Study area: Murono mud volcano. a Overview. b Regional view on a background of a 1:50,000 geological map (after Takeuchi et al. 2000) with topographic hillshade. Black solid and dashed lines indicate the anticline and syncline structures, respectively. Sm massive black mudstone of the Sugawa Formation (Early Pliocene), Tm, Ta, Ts massive siltstone, interbedded sandstone and siltstone, and thick-bedded sandstone, respectively, of the Tamugigawa Formation (Late Pliocene), Hs interbedded sandy siltstone of the Higashigawa Formation (Late Pliocene), Uc marine sand with gravel of the Uonuma Formation (Late Pliocene to Early Pleistocene). c Aerial image of the study site. The present vent of the mud volcano is at the center, and this study’s target zone is located in the eastern side of the area. Triangular arrows indicate locations and directions of photographs shown in Fig. 2

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