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Structural geological data of the Shionohira and Kuruma faults in southeastern Fukushima Prefecture, NE Japan

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posted on 2024-04-16, 10:39 authored by Toru Sakai, Masao Kametaka, Kazuhiro Aoki, Koji Shimada, Hideo Takagi

Table S1. Occurrence of calcite and sense of shear. LSS = latest slip surface. *: including LSS.

Table S2. Fault-slip data for the Shionohira Fault from the SFS-2 core. The stereogram that shows these data and results of the multiple inverse method are shown in Figs 8a and 9a(Sakai et al., 2024) respectively. The data are consistent with those of Fig. 10a(Sakai et al., 2024). The position of the shear plane is expressed as the measured depth (m) to the intersection of the shear plane and center line of the core sample. The shear sense was estimated from composite planar fabrics and slickenside kinematic indicators. The shear plane classification consists of the Y-, P-, and R1-shears. LSS = latest slip surface.

Table S3. Fault-slip data for the Kuruma Fault from the MFS-1 core. The stereogram that shows these data and results of the multiple inverse method are shown in Figs 8b and 9b(Sakai et al., 2024), respectively. The data are consistent with those of Fig. 11a(Sakai et al., 2024). The position of the shear plane is expressed as the measured depth (in m) to the intersection of the shear plane and center line of the core sample. The shear sense was estimated from composite planar fabrics and slickenside kinematic indicators. The shear plane classification consists of Y-, P-, and R1-shears. LSS = latest slip surface.

Table S4. Principal stress direction and the stress ratio of stress states detected by the multiple inverse method (Fig. 9; Sakai et al., 2024). Stress ratio Φ = (σ2 − σ3)/(σ1 − σ3).

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Corresponding author email address

tsakai@suou.waseda.jp

Manuscript title (in Japanese)

複合面構造と応力逆解析による断層の運動履歴および応力史の推定:塩ノ平 断層と車断層への適用例

Authors (in Japanese)

酒井 亨,亀高正男,青木和弘,島田耕史,高木秀雄

Copyright

© 2024 The Geological Society of Japan

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    地質学雑誌/The Journal of The Geological Society of Japan

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