Finally volcanic rocks spread over its surface as the Slave protocontinent was rifted apart about 2.8 billion to 2.7 billion years ago. |
Conversely, the inexperienced infants nuzzled the bedding or briefly rifted their heads and then resumed steeping face down. |
Dismembered counterparts of the Beysehir-Hoyran Nappes further east are restored as a Triassic rifted margin. |
They suggest that the volcanic constructions on rifted margin segments develop through five main phases. |
That suggests that the eastern part must have rifted off at some point and drifted away. |
As envisaged by Robertson et al. continental fragments rifted from Gondwana in Triassic time. |