| Risco Plateado | |
| Elevation M: | 4999 |
| Elevation Ref: | [1] |
| Prominence M: | 1602 |
| Listing: | Ultra |
| Map: | Argentina |
| Map Size: | 200 |
| Location: | Argentina |
| Coordinates: | -34.9183°N -69.9942°W |
| Type: | Stratovolcano |
| Last Eruption: | Unknown |
Risco Plateado is a stratovolcano in Argentina, with an elevation of 4999m (16,401feet) above sea level. With a prominence of 1602m (5,256feet), it is one of the many ultra prominent peaks in the Andes. The equilibrium line altitude of the volcano lies at an altitude of .[2]
This stratovolcano has a wide caldera with eruptive centres on its northeastern and southwestern margins. These centres are aligned on a northeast-trending fracture that also includes a monogenetic centre northeast of the caldera (GVP). The volcano has produced long lava flows, although the more proximal parts of the flow were later degraded by glaciation.[3] The volcano has been assigned a Holocene age given the young appearance of some of its eruption products.[4] The volcanism was at first dacitic and later changed to basaltic andesite (GVP).