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Swiss Journal of Geosciences
Fig. 5 | Swiss Journal of Geosciences

Fig. 5

From: Sediment provenance during Alpine orogeny: fluid inclusions and stable isotopes on quartz–calcite veins from detritic pebbles

Fig. 5

Microphotographs in transmitted-light (crossed polarizers) illustrating characteristics deformation and dissolution/recrystallization structures observed at the vein and at the mineral scales. a Mixed vein where quartz crystals commonly display wavy extinctions. b Irregular quartz grain boundary migration (black arrows) indicating dislocation phenomena. c Illustration of quartz grain boundary dissolution in contact with calcite. Black arrows underline the quartz irregular shapes and the calcitic-fluid infiltration. d Late microcracks filled by younger carbonates. At their contact, the walls of quartz display a small amount of fluid inclusions (white arrows) than in its core due to quartz vein opening and fluid flow phenomena

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