Reventador and Sumaco: two jungle volcanoes on the Amazon slope

I’ve been fascinated with the scenario of an active volcano poking above the jungle. Back in 2009, I experienced it when I visited Costa Rica and watched Volcan Arenal for 4 nights at the Arenal Observatory Lodge observing incandescent lava rocks tumbling down the flanks before stopping at it’s jungle base. We are going to…

Remodelling Hekla – A 1947 commemorative article series

The point of this series of articles is to propose an alternative model of dynamics, driving forces and magma fractionation at Hekla. It is thus not utilizing the standard volcanological model of how a mantleplume stratovolcano function. 5 years ago, I started to have grave misgivings about how we interpret and model Hekla, as such…