Bond Nunatak Formation

Description

Basaltic volcanic breccias, aphanitic basaltic-andesite lavas and basaltic pillow lavas (at Sighing Peak). Interbedded with coarse-grained, immature sandstones and cobble/boulder conglomerates. Outcrop through central Adelaide Island from Mount Vélain to Bond Nunatak and Lagoon Island. Probable age of ~75 Ma (Griffiths & Oglethorpe, 1998¹).

Age

Late Cretaceous (~75 Ma)

Map Reference

Riley, T. R., Flowerdew, M. J. & Haselwimmer, C. E. Geological Map of Adelaide Island, Graham Land (1:200 000 scale). Sheet 2, (British Antarctic Survey, 2011). Available here.

References