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Swiss Journal of Geosciences
Fig. 9 | Swiss Journal of Geosciences

Fig. 9

From: Eoalpine tectonics of the Eastern Alps: implications from the evolution of monometamorphic Austroalpine units (Schneeberg and Radenthein Complex)

Fig. 9

Microstructures of selected quartzitic samples. a Recrystallized quartz grains with equal grain size and dominant straight grain boundaries (sample 7SZ1). b Recrystallized quartz grains equal grain size and dominant lobate grain boundaries (sample 7SZ7). c Quartz grains deformed by dominant bulging. Bulges and subgrains are indicated by arrows (sample PF22). d Recrystallized quartz grains with almost equal size and lobate grain boundaries (sample HW2). e Large quartz grains deformed by dominant bulging (arrows indicate bulges) (sample HW15). f Recrystallized quartz grains with lobate grain boundaries and almost equal size (sample 7RD21). g Large quartz grains with undulatory extinction surrounded by smaller recrystallized quartz grains indicating core-mantle textures (sample RD42). Dark areas indicate vertical quartz <c> axes. h Quartz grains unequal in size showing undulatory extinction and dominant bulging (sample 7RD10). i Recrystallized quartz grains with equal size and lobate grain boundaries (sample 7RD11)

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