EN I Our #ThinSectionThursday this week is an ultracataclasite from the eastern Pernambuco shear zone (PE, Brazil) containing heterogeneous fragments of ultramylonite, plagioclase and quartz. Recrystallised quartz aggregates are observed at the contact of the ultracataclasite with its host granite. (Lambda plate inserted). This rock and its geological context will be discussed on our nextContinue reading “[TST] Ultraclasite from the Pernambuco shear zone (PE, Brazil)”
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PETROCHRONICS 