#Precambrian #Metamorphic rock features on eastern Fringe of #Monashees mtns SW of #Revelstoke some creamy and gray areas of carbonate fizz HCL but dolomite, feldspar, quartz, mica don't. Amazing blue green rock near where Carbonatite tuff /quartzite layer mapped Simon Wellings

This is fun: sciencedirect.com/science/articl…

Case studies on the use of geophysical techniques to find underground structures - including mine shafts, Cold War & WW2 bunkers and a hidden IRA shooting range.
Subterranea Britannica

Request for help …!
Is anyone currently using LiDAR to map / research roddons in the Cambridgeshire fens? Any leads much appreciated 🙏

SE England's geology in a picture: chalk escarpment, buildings made of locally fired clay and actual outcrops of rocks quite hard to spot.

@AmicidellaVoce are a great octet a capella group that got rave reviews at the last Festival. A programme from Debussy to Vaughan Williams and Chilcott. Well worth a ticket! bit.ly/3PsYoOT

The Lion Salt Works now functions as one of the United Kingdom’s most unique industrial museums, teaching about Cheshire’s salt-making heritage to new generations. atlasobscura.com/places/lion-sa…

These are fabulous!
Final image looks like a classic augen - large feldspar crystal wrapped by other weaker qtz/mafic crystals that have been reduced in size by deformation.
The others are less clear - same but later recrystallisation? Metamorphic texture?
Any other ideas?

Looking NW into the north west.

Friday is World Pigment Day! Founded by myself and Jo Volley UCL Slade we celebrate all things pigment. Follow me on Instagram @worldpigmentday for more info #worldpigmentday

A monstrous flint being worked by Fred Snare, gun flint maker in Brandon, Suffolk. The first task in gun flint making is quartering.The waste from quartering was often used on many of the house fronts of Brandon. #flint friday #flint #gunflint #Suffolk #knappedflint #flint knapping

Six more sleeps to go

A special place, haunt of Gawain's green knight. Lidar image shows it's a tear in the rocks, where they've slid downhill.
They contain 300 million year old plant fossils - this place was green even then.

A UK specific stone question: is there a standard commercial source of gravel that contains fossils.
Something used by the trade that just happens to contain fossils. I've seen examples in the past - any ideas?

Spoiler: it's not *all totally relaxing*

But you're pleased about that, surely?

An art-work returning a glacial erratic back to where it came from.
Given the many ways rock moves about, I'm not sure 'rightful home' is a good term but interesting idea

Manchester looking glorious in the setting sun earlier today.

Today's the day. Come to Oxford, enjoy the sun lighting up Broad Street and come and be dazzled by this great music.

The Frank Martin and Pizzetti pieces were sounding proper lush in rehearsal last night. Complex multi-part writing and a wide range of emotions in both.

Come to our concert on Saturday 25th in central Oxford to hear what I mean.