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Trinity Peninsula Group

Description

Variably deformed siliclastic turbidite succession with rare interbedded basic volcanic rocks. Exposed extensively across northern and eastern Graham Land. The View Point Formation is at least Carboniferous in age, with the Hope Bay and Legoupil formations Permian - Triassic in age; confirmed by Triassic bivalves at Cape Legoupil.

Age

At least Carboniferous to Permian-Triassic123

Map Reference

Riley, T. R., Flowerdew, M. J. & Haselwimmer, C. E. Geological Map of Eastern Graham Land, Antarctic Peninsula (1:625 000 scale). Sheet 1, (British Antarctic Survey, 2011). Available here.

References

  1. Bradshaw, J. D. et al. Permo-Carboniferous conglomerates in the Trinity Peninsula Group at View Point, Antarctic Peninsula: sedimentology, geochronology and isotope evidence for provenance and tectonic setting in Gondwana. Geol. Mag. 149, 626–644 (2012). ↩

  2. Riley, T. R., Flowerdew, M. J. & Haselwimmer, C. E. Geological Map of Eastern Graham Land, Antarctic Peninsula (1:625 000 scale). Sheet 1, (British Antarctic Survey, 2011). ↩

  3. Smellie, J. L. & Millar, I. L. New K-Ar isotopic ages of schists from Nordenskjöld Coast, Antarctic Peninsula: oldest part of the Trinity Peninsula Group? Antarct. Sci. 7, 191–196 (1995). ↩