| 1. | A hornblende lamprophyre dyke in the Rozel Conglomerate is dated at.
|
| 2. | Lamprophyre dykes of Late Permian age are found throughout Orkney.
|
| 3. | Musselroe Bay nearby has a lamprophyre and basalt from.
|
| 4. | Dolerite ( or diabase ) and lamprophyre dykes intruded.
|
| 5. | On King Island, there was an intrusion of a biotite lamprophyre dyke at.
|
| 6. | Cape Portland is host to andesite, lamprophyre and porphyrite intrusions and eruptions from.
|
| 7. | The lamprophyre is an unusual igneous rock that contains a low content of silica.
|
| 8. | There are two sets of lamprophyre dykes.
|
| 9. | Modern nomenclature has been derived from an attempt to constrain some genetic parameters of lamprophyre genesis.
|
| 10. | The dykes included a swarm of dolerite dykes, also lamprophyre, feldspar porphyry and aplite.
|
