Visit to Cerro Galán

Sentinel-2 MSI acquired on 03 September 2017 at 14:28:51 UTC
Sentinel-1 CSAR IW acquired on 28 March 2018 at 23:04:53 UTC
Sentinel-1 CSAR IW acquired on 28 March 2018 at 23:05:18 UTC
Author(s): Sentinel Vision team, VisioTerra, France - svp@visioterra.fr
Keyword(s): Land, geology, volcano, caldera, crater, mountain range, Pacific Range of Fire, Altiplano-Puna, Andean cordillera, Argentina
Fig. 1 - S2 (03.09.2017) - 11,8,2 colour composite - Galán is a 6100m high volcano lying in the Altiplano-Puna volcanic complex.
2D view 3D view
Its caldera is one of the largest exposed calderas in the world, being 38 x 26 km (26 x 18 km on the inside) with a floor at 4500m.
Fig. 2 - S1 (28.03.2018) - vv,vh,ndi(vh,vv) colour composite - 2.1Ma ago, a VEI8 explosion covered it with 650 km3 of ignimbrite.
3D view 2D view
Fig. 3 - S1 (28.03.2018) - vv,vh,ndi(vh,vv) colour composite - Zoom up on the caldera, viewed from the east.
3D view 2D view
Fig. 4 - S2 (03.09.2017) - 8,4,3 colour composite - Talweg running from the lava dome are filled with ice.
3D view 2D view
The views expressed herein can in no way be taken to reflect the official opinion of the European Space Agency or the European Union.
Contains modified Copernicus Sentinel data 2025, processed by VisioTerra.
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