Geology for Global Development

Images of Guatemala (2) – Pyroclastic Flow Deposits


Pyroclastic Flow Deposits close to Volcan de Fuego, Guatemala.

The scale of these deposits, formed in 2012, can be seen against the scale of the person standing in the background [dark line, just above the red shrub]. Pyroclastic flows, alongside lahars, are two of the most significant and destructive volcanic hazards associated with Volcan de Fuego.

You can read more about Fuego and its secondary hazards online here.

(Credit: Geology for Global Development, 2014)


Every Friday we are publishing an image from Guatemala to promote our ‘100 x 100’ fundraising campaign. We are working with students, recent graduates and others in the UK to raise money to support efforts to reduce the impact of volcanic hazards in Guatemala.

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Joel is the Founder/Director of Geology for Global Development (@Geo_Dev) an organisation working to support geologists to make a sustainable contribution to the fight against global poverty. He is an interdisciplinary researcher, with a PhD in geography (natural hazards), and research interests in multi-hazard frameworks, disaster risk reduction, rural water projects, and sustainable development. This work has taken him to Chile, China, Guatemala, India, South Africa, Tanzania and Uganda. Joel is currently based at the British Geological Survey, and tweets at @JoelCGill.


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    How many eruptions formed that section? And why is it so colourful?

  2. Avatar

    The colours are from oxidation of the rock (mostly iron bearing) and the flat bit in the foreground is the deposit. The valley walls are a sequence of flows and ash fall and probably represent a few thousand years of activity. Note the new flow almost fills the valley….

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