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Earth, Planets and Space
Fig. 6 | Earth, Planets and Space

Fig. 6

From: Thermochronology of hydrothermal alteration zones in the Kii Peninsula, southwest Japan: an attempt for detecting the thermal anomalies and implications to the regional exhumation history

Fig. 6

Photomicrographs of vein rocks from the alteration zone of HJG1. a, b Quartz in blocky-textured vein rock under cross-polarized and reflected light; c, d veins cutting through sandstone under plane-polarized and cross-polarized light; quartz is holocrystalline and hypidiomorphic in veins but fragmented in sandstone. [Ep, epidote; Po, pyrrhotite; Py, pyrite; Qtz, quartz]

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