Abstract
Regional structural mapping, guided by remote sensing interpretation, in the eastern part of the Cauvery shear zone (CSZ), southern Granulite Terrain, reveals a structural framework of two major boundary shear zones interlinked by a set of sigmoidal shear belts. The strain pattern and deformational history are manifest in terms of two major episodes; D1 and D2. While D1 structures are well preserved in low strain areas, the D2 fabrics are well reflected in high strain belts enveloping the low strain domains. Our multiscale structural observations can be modelled in terms of a plan view duplex showing a cross sectional flower structure related to regional transpression resulting from late Neoproterozoic collisional processes in the eastern Gondwana.
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