Mud Volcanoes are much smaller than normal volcanoes and according to Wikipedia, about half of those known to exist are found in coastal Azerbaijan.

Often we use the terms nodules and concretions a bit loosely when out in the field - this blog will help you use these terms correctly when you notice these round bodies in the rock outcrops

Steep beds of sandstone contain fractures here at St Andrews (Fife, Scotland) - these have formed during folding.

Slickenlines are scratches on fault surfaces resulting from shear motion. Commonly found in Scottish outcrops and also in rock core from the North Sea.

The site of an unconformity between Devonian conglomerates and the mighty Dalradian supergroup - one of my favourite AGS trips of 2024 when we visited on 9th June.

This stunning boulder is a mixture of lava and fine grained sediments is sitting on the North end of Lunan Bay, South of Montrose, Scotland

Synclines are common, saucer shaped folds in the world of geology, coming in a range of sizes. Here we look at the geology of the Strathmore Syncline at Stonehaven which is a regionally extensive feature.

I feel honoured to be involved in a conference and field trip to commemorate Prof. Ken Glennie from 8-10th May in 2026. There are some details on the event here..

It was a lot of fun helping local folks identify pebbles on Auchmithie beach as part of the Scottish geology festival event on 27th September 2025.

Just a 5 minute walk from the roadside, this flagstone quarry is a world renowned locality for Devonian fossil fish .

Mudstones have a bit of a boring reputation. These outcrops near Perth are far from boring, with a host of impressive structural geology features.

One of my favourite outcrops for getting to grips with what faults and fractures look like at the hydrocarbon reservoir scale. There’s also impressive inversion structures that we focus on here..

This short walk to the top of Kinnoull hill is really worth it for the view over the Tay valley and the andesite lavas marking that this was the site of an ancient volcano

Ever wondered why faults often cross each other - this is predicted by Anderson’s model together with 3 types of faults; normal, reverse & strike-slip. Some examples are given here from Morayshire.

This outcrop of sandstone from the Triassic period (225 - 190 Ma) forms part of Burghead harbour wall and a few minutes walk from the car park next to the pictish fort visitor centre.

A short hop from the road at Cowie Shore on the Isle of Arran, these easily accessible sandstone outcrops of Permian age are host to spectacular networks of deformation bands.

What a fascinating history there is here at Boddin Point, Montrose, Scotland. In the 18th C an entrepreneur took advantage of the limestone outcrops here to site a limeworks to be able to extract lime for use on fields to boost crop yield.