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Earth, Planets and Space
Figure 4 | Earth, Planets and Space

Figure 4

From: Geological evidence for shallow ductile-brittle transition zones along subduction interfaces: example from the Shimanto Belt, SW Japan

Figure 4

Pressure-temperature conditions for extension vein and shear vein formation. (A) Pressure-temperature conditions for extension vein and shear vein formation for the Mugi mélange (Matsumura et al., [2003]), Miyama mélange (Hashimoto et al., [2002], [2003]), and Yokonami mélange (Hashimoto et al., [2012]) (locations are shown in Figure 1). Inferred temperature conditions for ductile mélange (extension veins only in sandstone); the ductile–brittle transition zone (coexistence of extension veins in sandstone blocks and shear vein) and brittle deformation (shear vein) are also indicated. See text for details. (B) Temperature conditions for each location and type of vein. (C) Histogram of temperatures for extension veins. (D) Histogram of temperatures for shear veins.

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