Geology in a Jiffy

Chemical weathering at Stonehenge, Summer Solstice 2026

Note how the upper surfaces of the horizontal capstones are much more weathered and pitted than the smoother, almost planar, underside surfaces.

The stories these stones have to tell…..

Summer Solstice 2026

In the centre of Stonehenge!

To be correct, the evening before, but…..wow!

Just amazing!

An easy way to remember the names of the first 4 alkanes, these being:
Methane
Ethane
Propane
Butane

Perfect for both teaching and revision!

Geology in a Jiffy!

Angular unconformity at Barnhill Quarry

Exposed in the walls of a now-disused quarry, this great example of an angular unconformity is displayed for all to marvel at.

The steeply westward-dipping Carboniferous (340 million year old) limestones are unconformably overlain by Triassic (220 million year old) deposits laid in a flash-flood / wadi-type environment, meaning the whole of the Permian period is missing here!

Wow!

Just a high-speed, vehicle-carrying- catamaran, zooming across the English Channel on a sunny day!

The power of those engines!