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Several structures of hydrothermal tectonic breccias from La Perle creek. A: Hydrothermal tectonic breccia with more rounded fragments due to local dissolution processes; B: Hydrothermal tectonic breccia where fragments are angular; C: Yellow-green hydrothermal tectonic breccia cutting a red hydrothermal tectonic breccia, both breccias are meta-dacite; D: Red hydrothermal tectonic breccia of meta-basalt-andesite; E: Schematic representation highlighting two major directions at the scale of the outcrop.
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