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Progress in Earth and Planetary Science
Fig. 1 | Progress in Earth and Planetary Science

Fig. 1

From: Paleoceanography and dinoflagellate cyst stratigraphy across the Lower–Middle Pleistocene Subseries (Calabrian–Chibanian Stage) boundary at the Chiba composite section, Japan

Fig. 1

Location of the Chiba and Yoro-Tabuchi sections examined in the present study. a Location of the Chiba section in the central Boso Peninsula. Selected cities and the two nearby international airports of Haneda (Tokyo International Airport) and Narita (New Tokyo International Airport) are shown. b Topography of the Yoro River in the vicinity of the Chiba and Yoro-Tabuchi sections. The Chiba section forms part of the Yoro River section, and is continuous with the Yoro-Tabuchi section. All are part of the Chiba composite section. The Global Boundary Stratotype Section and Point (GSSP) is located on the east bank of the Yoro River near where the power lines cross overhead (from fig. 8c of Suganuma et al., in press). c Google Earth image of the square shown in (b). d Chiba section showing the position of the GSSP (red star) which defines the boundary between the Calabrian and Chibanian stages and Lower and Middle Pleistocene subseries (from fig. 10a of Suganuma et al., in press)

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