The martian surface features abundant volcanoes and evidence for past liquid water. Extant or relict martian volcanic hydrothermal systems have therefore been sought in the pursuit of evidence for habitable environments1. The Mars Exploration Rover, Spirit, detected deposits highly enriched in silica with accessory minerals, suggesting formation by hydrothermal leaching of basaltic rocks by low...

Acknowledgements Work in the Hawai‘i Volcanoes National Park was conducted under National Park Service science permit # HAVO-2012-SCI-0025. This material is based in part on work supported by the National Science Foundation Graduate Research Fellowship under Grant No. 2012116373. Any opinion, findings, and conclusions or recommendations expressed in this material are those of the authors(s) and...

In order to assess the effect of eruption rate on the surface morphology and degassing mechanisms of silicic lava flows, we studied surface characteristics and obtained water content and hydrogen isotopic values of samples from flows at the Mount St. Helens and Santiaguito lava domes. We compared the surface textures and inferred degassing processes to short-term extrusion rates and found that ...

This paper presents the latest developments of the deterministic Macroscopic Cellular Automata model SCIARA for simulating lava flows. A Bingham-like rheology has been introduced for the first time as part of the Minimization Algorithm of the Differences, which is applied for computing lava outflows from the generic cell towards its neighbours. The hexagonal cellular space adopted in the previo...

As specifically designed platforms are still unavailable at this point in time, lava flows are usually monitored remotely with the use of meteorological satellites. Generally, meteorological satellites have a low spatial resolution, which leads to uncertain results. This paper presents the first long term satellite monitoring of active lava flows on Stromboli volcano (August–November 2014) at h...