LATE PROTEROZOIC HD LILLY UNCONFORMITY AT RED HEAD, NORTHEASTERN AVALON PENINSULA, NEWFOUNDLAND

At Red Head, on the northeastern coast of the Avalon Peninsula of Newfoundland, intricately folded and irregularly eroded marine sandstones of the lower Conception Group are unconformably overlain by red terrestrial breccias belonging to the upper part of the Cabot Group; both groups are of late Proterozoic age. At this contact, a sequence some 2 to 3 km thick is missing, which everywhere else in eastern Avalon is intercalated conformably between the rocks making contact at Red Head. In memory of their late colleague, Hugh D. Lilly, who was the first to recognize the unconformable nature of this contact, the authors propose to call it the ″H. D. Lilly Unconformity″ , and discuss its significance in the area's geology. Refs.