1.7K views · 67 reactions | Captured overnight at BGS’s Eskdalemuir observatory in Scotland: stunning auroras from the G4-level geomagnetic storm  | British Geological Survey | Facebook

1.3K views · 75 reactions | The Strokkur geyser, part of a major geothermal field at Geysir in Iceland, erupting today. It ejects a column of water and steam up to 30 metres into the air every few minutes. An amazing spectacle! | British Geological Survey | Facebook

Under the microscope, Caithness Flagstone reveals its finely layered structure, with low porosity and minimal water flow. Formed around 390 million years ago during the Devonian Period, when Scotland was near the Equator, it consists of mud and fine sand deposited in the Orcadian Basin. Tightly packed, it has been used for centuries in masonry, paving, and roofing, becoming a key part of Caithness' construction heritage. | British Geological Survey

The three norths align over Great Britain | Blog | OS

How on Earth do mountains form? ⛰️ Using our mountain building experiment, BGS’ Teddy Reeves demonstrates how tectonic plates fold, fault and uplift rock to create towering peaks. Watch the full experiment: https://youtu.be/mBduxHPCcfI | British Geological Survey