| In the central part of the intrusion, some small granitic aplite dykes intrude the syenitic rocks. |
| Aplite and pegmatite sills and dykes are also common demonstrating that a metasomatic volatile-rich phase played an important role in leucogranite migration. |
| At least two Eocene feldspar porphyry dykes or sills intrude Tsa da Glisza, and appear to have followed the same planes of weakness as the aplite dykes. |
