| 1. | The main rock type of the volcanoes is andesite and dacite.
|
| 2. | In the North West corner is found dacite and quartz andesite.
|
| 3. | Middle Silurian Colinton Volcanics foliated dacite and tuff is under Williamsdale.
|
| 4. | It is constructed by dacite and surrounded by pyroclastic flow deposits.
|
| 5. | They are constructed by dacite and smaller amounts of pyroxene andesite.
|
| 6. | The volcanoes are formed by basaltic andesite, andesite and dacite.
|
| 7. | Rocks in the chain are andesite, basaltic andesite and dacite.
|
| 8. | The group consists of andesite and dacite stratovolcanoes and lava domes.
|
| 9. | The St Marys Porphyrite is an ash flow of dacite from.
|
| 10. | The chain is constructed by dacite and smaller amounts of andesite.
|
मोबाइल