EN I This #TuesdayFieldMemory is a pseudotachylite from the Juru shear zone (PB, Brazil) showing the main vein (centimetric) containing quartz and feldspar fractured clasts. From the main vein, injection veins oriented obliquely to its configuration are present, in which relitic grains of recrystallized quartz are observed. Contribution by Gustavo Viegas @lgviegas This rock andContinue reading “[TFM] Pseudotachylite from the Juru shear zone (PB, Brazil)”
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PETROCHRONICS 