Description
Andesitic volcaniclastic turbidite sequence up to 8km thick. Rare macro fossils indicate an Aptian age but morainal deposits suggest the sequence may extend to Late Jurassic (Thomson et al. 1982)1. Moderately deformed into large scale folds with associated tectonic foliation.
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
-
Thomson, M. R. A., Tanner, P. W. G. & Rex, D. C. Fossil and radiometric evidence for ages of deposition and metamorphism of sedimentary sequences on South Georgia. Antarct. Geosci. 177–184 (1982). ↩