Author Archives: Chris Rowan

How the UK’s tectonic past is key to its seismic present

Today I learnt something very interesting that I didn’t know before – that intraplate earthquakes in the UK mostly occur in western England and Scotland, not Ireland, eastern Scotland or southeast England (where I grew up). The cause of this … Continue reading

Categories: deep time, earthquakes, geohazards, tectonics

A new recipe for Large Igneous Provinces: just add BIF, then wait a couple of hundred million years

Here’s a new paper that proposes the biggest of big ideas: a 240 million year causal chain that runs from the Earth’s surface, to the core mantle boundary, and back again! Here’s how it supposedly goes: 1. Banded iron deposits … Continue reading

Categories: deep time, geology, past worlds, volcanoes

A volcano erupted on Venus in the 1990s!

Exciting news that there was a volcanic eruption on Venus in the early 1990s, shown by changes in the size of crater between two passes of the Magellan probe‘s radar over the same area. There have been hints of volcanic … Continue reading

Categories: planets, volcanoes

Earth’s inner core has an inner core?

We all know that the Earth’s mostly iron core is divided into a molten outer core and solid inner core. But that may not be the whole story: some just-published seismic data suggests that the Earth’s inner core is divided … Continue reading

Categories: earthquakes, geophysics

Obsessing over the Anthropocene’s “golden spike” misses the point of the Anthropocene

This is a good write-up of the latest step in the long and somewhat contentious process of making the Anthropocene “official”: In the same week as the world’s population ticked over to 8 billion people, the Anthropocene Working Group (AWG) began … Continue reading

Categories: geology, public science, ranting