Description
Sequence of highly deformed volcaniclastic metagreywacke, phyllite and slate, with boudinaged ortho-amphibolite sheets. Depositional age is uncertain, but considered a time equivalent of Cumberland Bay Fm. Exhibits a polyphase deformatiol history related to adjacent Cooper Bay Shear Zone (Curtis et al. 2010)1.
Age
Early Cretaceous
Map Reference
Curtis, M. L. Geological Map of South Georgia (1:250 000 scale). Sheet 4, (British Antarctic Survey, 2011). Available here.
References
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Curtis, M. L., Flowerdew, M. J., Riley, T. R., Whitehouse, M. J. & Daly, J. S. Andean sinistral transpression and kinematic partitioning in South Georgia. J. Struct. Geol. 32, 464–477 (2010). ↩