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

Fig. 4

From: Multiproxy sedimentological and geochemical analyses across the Lower–Middle Pleistocene boundary: chemostratigraphy and paleoenvironment of the Chiba composite section, central Japan

Fig. 4

Scan images of the selected samples of the polished paleomagnetic core. a Sample ID: TB3-37. b Sample ID: TB3-53. The paleomagnetic cores were cut perpendicular to bedding planes, thus, the upward direction of these images represent stratigraphically higher direction. Note abundant Phycosiphon in the surface. In addition, the core and mantle of Phycosiphon can clearly be observed

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