Articles on Volcanoes

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Lava trails (pictured) from the 2021 Tajogaite eruption in La Palma. Marco Specht/Shutterstock (no reuse)

Why volcanic crystals are black boxes for tracking magma’s journey to the Earth’s surface

By observing the tree-ring-like growth records present in volcanic crystals, geologists are able to track volcanic activity and reconstruct the steps leading up to eruptions.
A view of the Waiau Toa Clarence River valley in southern Marlborough, encompassing rock strata that span 120 million years of Aotearoa’s geological history, including the reference strata for parts of our geological timescale. Kyle Bland

Delving into ‘deep time’: what NZ’s ancient past reveals about its present

A newly-dated geological timescale will help scientists connect NZ’s deep past to present day hazards, climate change and biodiversity.

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