Transition from contractional to transpressive tectonics: evidence from the Feira Nova Region, Rio Capibaribe Domain, Borborema Province, NE Brazil

Differences in tectonic style and kinematics orogenic belts can result from either multiphase or progressive deformation. In eastern Borborema Province, a regional shallow dipping foliation is multiply folded crosscut by transcurrent shear zones. Here, we investigate if these fabrics resulted diachronous deformational events single-phase The study area, the Feira Nova region, mostly comprises metasedimentary rocks Surubim Complex, bounded NE-trending sinistral Gloria do Goitá (GGSZ) contractional Paudalho (PSZ) zones, which separate it Paleoproterozoic basement rocks. Structures be grouped into transpressional stage, both related to Brasiliano Orogeny. contraction-related structures are represented gently (S2) top-to-the-NW transport. contact between parallel S2, indicating lithotypes of age, with strain localization having produced PSZ. NW-verging macroscopic folds consistent this regime. following transpression generated steep mylonitic (S3) mainly along GGSZ, caused refolding. data here presented deformation history comprising gradual transition contraction transpression.