| In the central part of the intrusion, some small granitic aplite dykes intrude the syenitic rocks. |
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| 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. |
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| Aplite and pegmatite sills and dykes are also common demonstrating that a metasomatic volatile-rich phase played an important role in leucogranite migration. |
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