Lmst

Euan Mitchell boosted:

And its Day 6 of the Mull Geology Advent Calendar - easwards we go to the shore at Glengorm. Great views to Ardnamurchan, classic Mull Plateau lava landscape and lots of interesting minor intrusions, esp sills. Coastal scenery is ace. See Alt-text

A thin sill intruding the lavas - little columns well developed

Trying again with the raw video … 😬
#30DayMapChallenge #finalmap

Animation not working, will try and fix later!

Haven’t managed to post anything for this year’s #30DayMapChallenge, but just in time for the final day, here’s an animation of my time-averaged location, based on how long I’ve lived in the five different cities I’ve called home:

Edinburgh - 18.5 years
Liverpool - 4 years
Albuquerque, NM - 8 years
Lexington, VA - 3 years
Oxford, OH - 3 years
Edinburgh - 5 years

Excitingly for a geologist, I’ll cross back over the Mid-Atlantic Ridge in 2032!

Background bathymetry from www.gmrt.org

Euan Mitchell boosted:

In a moment this cloud is going to open their eyes & be really embarrassed about how late they've slept in.

#sillyScribbles #cloudCreatures #Scotland #nonsense

A photo of a partially wooded mountain. Nestled near the bottom, behind some evergreen trees, is a low single cloud. Above it the hillside becomes treeless, lit by a low autumn sun. There is a hint of grey sky above. The cloud has a yawning face drawn on, arm reaching up to cover their month, eyes still closed.

Euan Mitchell boosted:

I just saw a post that referred to ChatGPT as "Mansplaining as a service", and it is so wonderfully correct - instant generation of superficially plausible yet totally fabricated nonsense presented with unflagging confidence, regardless of topic, without concern, regard, or even awareness of the expertise of its audience :D #chatgpt #mansplaining #GenerativeAiIsGoingGreat

Euan Mitchell boosted:

Happy Exploding Whale Day! On this day, 54 years ago, Oregon State Highway Division decided to remove a stinking dead whale from the beach near Florence using a half ton of dynamite. Hilarity ensues.
https://youtu.be/V6CLumsir34

Euan Mitchell boosted:

#30DayMapChallenge 2024 Day 2: Lines
One of the best days of our Pacific Crest Trail hike was reaching the Three Sisters. We dropped our packs at a good place to camp and loaded up our fanny packs to hike to the summit of South Sister. We backracked on the PCT to the start of the official route. On the way down, we wanted to head straight back to camp, so we headed down the NW side and unintentionally glissaded about 800 meters down the Lost Creek Glacier. #PCT #Oregon #QGIS

Euan Mitchell boosted:

Après les points les plus hauts l'an dernier, voici une sélection de quelques points parmi les plus bas de France, pour lancer ce #30DayMapChallenge (jour 1). Mairie, col HC du Tour de France, source d'une rivière de plus de 100 km ou ancien volcan... au choix ! 🗺️📍

Carte localisant une sélection de points parmi les plus bas en altitude en France selon diverses thématiques.

Fuck you Elon Musk, even more than ever before you absolute c**t

https://www.bbc.co.uk/news/articles/cg78ljxn8g7o

Euan Mitchell boosted:

#MinCup24 kyanite vs rhodochrosite

Vote #kyanite! The glorious blue harbinger of metamorphism done right: high pressure, and aluminous chemisty = beauty + lots of geo-information 🤩 🥰 🤓

Here's some Mull kyanite, together with it's pink cousin andalusite, in an outcrop at Ardalanish in Mull - what a rock! 😊 😍

#Geology #Mineralogy #Metamorphism #Mull #Moine @MineralCup

A close-up picture of a weathered rock surface. There are some fronds of grass etc at the bottom, and some grey lichen towards the top, but the clean rock shows a band of sky-blue and pink crystals. An orange propelling pencil at the left provides scale.

Euan Mitchell boosted:

#MinCup24 Vote kyanite!

Here's a sturdy block of slightly rusty kyanite schist/gneiss in the walls of a ruined house at Uisken, Mull.

This house has a great range of Moine metamorphic lithologies in its walls - almost like they were chosen deliberately.😊

the corner of a dry-stane built house with a field and blue sky in the background to the left. A large brown block of stone has small blue-gray elongate crystals of kyanite in it!

Close up view of the right hand edge of the stone block in the the previous photograph, showing several long, blue-grey crystals of kyanite.

Euan Mitchell boosted:

The trail of color leading up to the #MinCup24 Grand Final...

#BlueMinerals #PinkMinerals #MineralsArrangedByColor #Minerals #Geology

The MinCup bracket with mineral colors standing in for the mineral names. Red and yellow don't do so well, pink, blue and green lead.

Euan Mitchell boosted:

#MinCup24 Vote #kyanite

Here's some more kyanite from this morning's wee walk near Uisken in Mull. Nice blue kyanite blades up to 3cm+, with some red stonecrop and lichen keeping them company.

#Geology #Mull #Moine #Metamorphism

A close-up view of a rock surface, with peay, lichen and a little plant with fat red leaves on the right of the eimage. From the bottom centre to centre-right, several blue-grey elongate crystals can be seen.

Euan Mitchell boosted:

Come on #kyanite !
https://mastodon.social/@MineralCup/113230405739101349

#TeamKyanite #MinCup24

Euan Mitchell boosted:

#MinCup24 kyanite vs topaz

A hard call - two fine aluminium orthosilicates. I like both. #Torn

I live on kyanite-grade metamorphic rocks & nice crystals are visible on outcrops within a mile of my house. Seeing kyanite cheers up your day. Any metamorphic rock is improved by having kyanite in it.

But topaz is fancier. It bespeaks exotic fluorine-rich chemistry, with the promise of tungsten, tin, bismuth, niobium & tantalum. And a wonderfully lustrous clear gemstone...

Hmm...🤔

@MineralCup

Euan Mitchell boosted:

USGS webcam showing a 45 m tall lavafall generated by flows from the ongoing Kilauea #volcano #eruption

https://www.usgs.gov/media/webcams/s2cam-view-napau-crater-east-rift-zone-kilauea-view-southwest

#Hawaii #geology

A shrubby landscape. A cliff in the distance has lava flowing over it with smoke rising from the base. The sky is nearly overcast.

Euan Mitchell boosted:

Maybe warmest day of year in Mull today? 24 C? Anyway, here's a nice wee ptygmatically folded quartz vein in a mysterious quartz-amphibole-rich rock band within the Scoor Pelitic Gneiss, (Moine; Proterozoic), from a nice walk this morning (this outcrop was in cool shadow, so no sunny sparkles) #Geology #Mull

A grey rock outcrop with a couple of wee tufts of vegetation on the fight. The grey rock is cut by thin white veins and streaks of quartz, one of which shows a spectacular wiggly, snake-like appearance...

Euan Mitchell boosted:

#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.

Euan Mitchell boosted:

#MinCup ROUND 1 MATCH 6: Are you ready for colour as bright blue #Ammineite from guano battles the deep green #Dioptase of the desert?

VOTE: https://www.mineralcup.org/2024/vote/r1m06
RESULTS: https://www.mineralcup.org/2024/results/r1m06

You have 24 hours to pick your champion and campaign for their cause!

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