Sighting 4740009
Igneous Intrusion
Igneous Intrusion at Symonston, ACT
Identify this sighting
| Igneous Intrusion | pinnaCLE | 7 Oct 2026 | |
| Igneous Intrusion | DavidDedenczuk | 5 Oct 2026 |
Please Login or Register to identify this sighting.
User's notes
Mugga Mugga Porphyry. Silurian age rhyodacite. Shows phenocrysts of K-feldspar, plagioclase, quartz and a ferromagnesium mineral (possibly biotite) in a mauve-grey groundmass.
Be the first to comment
Location information
- Coordinates 149.129906-35.350341
- Maps Mount Mugga Mugga
- Places Symonston, ACT
Sighting information
- At least 1 Abundance
- 3 Oct 2026 03:55 PM Recorded on
- DavidDedenczuk Recorded by
Collections
- DavidDedenczuk NatureMapr Canberra & Southern Tablelands Latest Igneous Intrusion Fossils & Geological Features
Species information
- Igneous Intrusion Scientific name
- Igneous Intrusion Common name
- Not Sensitive
- Cosmopolitan
- Non-invasive or negligible
- Up to 801m Recorded at altitude
Record quality
Quality score
3 / 7
- Images or audio
- Verified by an expert moderator
- Description
- More than one media file
- Nearby sighting(s) of same species
- GPS evidence of location
- Additional attributes