Volcanoes and the products of volcanism Volcanoes shape our earth: landscapes, the air we breathe, the oceans. From day one […]
Prevailing scientific wisdom tells us that volcanic seamounts and oceanic islands are forged from magma hotspots fed by mantle-derived plumes.
Seamounts and volcanic islands – the foundations for atolls and fringing reefs. A historical interlude Darwin’s elegant explanation of atoll
Every geological outcrop tells a story. How often do you pass a road-side rock outcrop that grabs your attention, a
Pyroclastic surges, are dilute, ground-hugging turbulent flows of hot, juvenile volcanic particles and a fluid phase of superheated steam and
I have been under the (mistaken) impression that accretionary aggregates, including accretionary lapilli, are occasional odd-ball structures borne of explosive
Block and ash flows – a hot pyroclastic flows that transport big chunks of rock Block and ash flows (BAFs)
Ignimbrite is a rock name. Ignimbrites form primarily from the collapse of eruption columns during explosive volcanism and are included
This post continues the series on volcanic and volcaniclastic rocks in outcrop, with a brief introduction to pyroclastic density currents
A look at volcaniclastics – pyroclastic fall deposits in outcrop This is part of the How To… series on describing