Fig. 1
From: Methane genesis within olivine-hosted fluid inclusions in dolomitic marble of the Hida Belt, Japan
Geological maps (a, b) and photographs of investigated dolomitic marble (c, d). a Simplified geological map of the Hokuriku region, showing locations of the Kamioka area (modified after Harada et al. 2021a,b). Hd, Hida Belt; HG, Hida-Gaien Belt; I.S.T.L., Itoigawa–Shizuoka Tectonic Line; M–T, Mino–Tamba Belt; Ry, Ryoke Belt. b A geological map of the Kamioka area, showing sample localities (modified after Harada et al. 2021a,b). c The field occurrence of the dolomitic marble (Kamioka area, the Hida Belt). d A sample slab of dolomitic marble. Black minerals are partially or completely serpentinized olivine