| A focus is the distribution, nature, age, tectonic setting and metallogeny of volcanic and plutonic rocks. |
| The presence of plutonic rocks here suggests that these regions too have been highly extended. |
| Overthrusting, volcanism, and plutonic igneous intrusion were identified as originating above the subduction zone where one plate is forced beneath the edge of its neighbour. |
| The Frame Lake Trail is underlain by both volcanic and plutonic igneous rocks. |
| The area between the Pacific Ocean and this valley is formed primarily of plutonic, volcanic and metamorphic rocks. |
| Although closely associated with plutonic igneous rocks, porphyry mineralization commonly encompasses large volumes of the surrounding host rocks to the intrusion. |
