This summer I eventually managed to visit the classic #pseudotachylite outcrop on the beach south of Greian Head, (Ceann Aird Ghrein), Isle of Barra, Scotland. #Geology

Doubling up today with a #FridayFold and #FridayFault at Broadhaven in Pembrokeshire, SW Wales. #Geology

Taking in the sights

Almost home. Stopped off at Corrieshalloch Gorge near Ullapool, before getting the ferry back to the #IsleofLewis.

Next lecture: Biogeochemical cycling of essential elements within Mars analogue sites by Toni Galloway (St Andrews). Thursday 8th Feb 19:00 by zoom. us02web.zoom.us/j/87137408991?…

7th February 2024 — Perthshire

At the age in this photo I asked a teacher how I could work for NASA. He laughed. He knew my parents never graduated high school. It’s been a difficult road but at 38 my biggest dream has come true. I start at NASA later this year after graduating with my PhD in astrophysics.

Car needed it's MOT today so this was the obvious choice for a geologist🤔#Stornoway #IsleofLewis

Tight to isoclinal #FridayFold in an Archaean layered intrusion at Cnoca Breac, on the west coast of South Uist. Considered to be some of the oldest rocks in the Outer Hebrides at > 2900 Ma the compositional layering is still distinguishable despite strong Laxfordian reworking

Right in the middle of #Ardnamurchan volcanic centre #3, a perfect holiday retreat.

Staffa lived up to expectations, especially after the sun came out 😎

Diorite on Mars? Somewhat vague description of the mineralogy ("pyroxene and feldspar"), but if it is intermediate in composition, it almost certainly represents reprocessing of older basaltic crust🧐 jpl.nasa.gov/news/nasas-per…

Heading home to the #IsleofLewis ⛴️😄

Brought back some #IgneousGin A suitable souvenir to remind me of our stay in the middle of #Ardnamurchan Paleocene intrusion centre #3. Our cabin was next to the distillery and was surrounded by ring intrusions giving the appearance of a caldera.

92% of people under 25, and 67% of people in the UK wish to rejoin the EU. RT if you are one.

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Garnetiferous metasediments in the Harris Granulite Belt🤤 #Lewisian #OuterHebrides

A pair of shear zones cutting across the complicated fabric in garnetiferous metasediments belonging to the Harris Granulite Belt. I keep spotting new things on the larger outcrop photo 🤔but luckily it is only a 90 minutes drive to go back #ShearZones #Granulites #OuterHebrides

#FridayFold seen in a new road cutting near Stornoway. #Archaean Lewisian gneiss is cut by mafic #OuterHebrides dyke. Both are then folded during the #Laxfordian. Cross cutting of the gneissic foliation can be seen in the core of the fold, whilst the limbs are concordant

Attenuation of the limbs in these folds has left some of the fold hinges essentially floating. #Laxfordian folding on the north west coast of the #IsleofLewis #TectonicTuesday #Geology #Lewisian #Folding