Deformation Phase One (D 1 ): Regional Metamorphic (dynamothermal) and recrystallization (M 1 ) event Resulted in Folding (F 1 ) and Foliation (S 1 ): Fold structures range from tight to isoclinal (0 to 20º) F 1 geometry is asymmetric: short limbs 80-90% shorter than long limbs Represented by predominately mesoscopic folds S 1 foliation is parallel to the axial surfaces of the folds
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