| The radiometric age data combined with the petrography of the volcanics thus indicate two separate events of volcanism in the Danish North Sea. |
| This volcanism seemingly developed in an extensional setting near a shelf margin located in the eastern Neptune Range. |
| Rejuvenescent volcanism occurs on many oceanic islands, including the Society Islands. |
| The volume, distribution and lithology of this volcanism, however, shows considerable differences between the two areas. |
| An active origin is suggested because volcanism and uplift appear to have preceded rifting, an active plume passing over a large area. |
| The northern part of the shield is truncated by a 10 km wide embayment, open to the north and filled by postshield volcanism. |
