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geooutreach.bsky.social
Geological Outreach
@geooutreach.bsky.social
2.4K followers 680 following 340 posts
Geologist. Fond of garnets.
ESTA, FGS, FRGS, F.Lab, Prof Mbr
GSA
.
Mastodon: @GeoOutreach@mstdn.social
Posts Replies Media Videos
geooutreach.bsky.social
A small gift to myself
Photo of a book: "Volcanoes - 10 Things You Should Know" by Dr Rebecca Williams @volcanologist.bsky.social
November 24, 2025 at 9:09 PM
geooutreach.bsky.social
Limited success with the bee hotel. 19 red mason cocoons and signs of interest from a leaf cutter bee
A tray from a 'bee hotel' with four grooves, two are 8mm wide and the others 10mm. One of the wider grooves is empty and the other is partially lined with pieces of dried leaf. The other two grooves are sealed at one end, lined with mud and contain 9 and 10 cocoons, respectively.
November 24, 2025 at 8:34 PM
Reposted by Geological Outreach
nadwgab.bsky.social
326 of #365Minerals 🧪⚒️

Periclase:
- A magnesium oxide mineral
- Forms via high temperature contact metamorphism
- Used in the production of fire bricks
- Its name comes from the Greek word "περικλάω/perikláo" (to break around) because of its cleavage #minerals
Tiny grains of periclase in a grey limestone. From Mount Vesuvius, Italy. Specimen on display in the Natural History Museum, London. A colourless artificial crystal of periclase, with a cloudy surface. Specimen on display in the Natural History Museum, London.
November 22, 2025 at 10:42 AM
geooutreach.bsky.social
M5.7 earthquake, Kamchatka, at 22.38 UTC on 21 November 2025. P-waves recorded in Nottingam using 'slinky' (top) and LEGO school seismometers
#earthquake ⚒️ #geology 🦕
earthquake.usgs.gov/earthquakes/...
Two seismograms showing P-wave arrival at about 22.50 UTC
November 22, 2025 at 4:43 PM
Reposted by Geological Outreach
bgs.ac.uk
BGS SEISMIC INFORMATION: PUBIL, PERTH & KINROSS 22 NOVEMBER 2025 04:24 UTC 2.5 ML

The following preliminary information is available for this earthquake:

DATE: 22 November 2025
ORIGIN TIME: 04:25 42s UTC
LAT/LON: 56.546° North / 4.532° West
GRID REF: 244kmE / 742kmN
DEPTH: 5 km
MAGNITUDE: 2.5 Ml
A graphic which says 'seismic activity' in white, and 'alert' in gold. There is a gold S wave running across the image. Top right is the BGS logo.
November 22, 2025 at 11:47 AM
Reposted by Geological Outreach
dmcediacaran.bsky.social
Some more #Charnia content this #FossilFriday, but this time Charnia grandis reins. stat. It had been synonymized with C.masoni and mostly used for gigantic specimens of what is now C.brasieri but its strange rhomboidal branches are very distinct. the 1st branches are 45o and 2nd are at 90o
specimen of C grandis showing rhomboidal branching plaster cast at The Rooms opposing leaf like charnias parallel to current so not felled but growing along the seafloor in our opinion schematic showing the 1st and 2nd order branches of all the charnia species
November 14, 2025 at 11:34 AM
geooutreach.bsky.social
M6.8 earthquake, Japan, at 08.03 UTC on 11 November 2025. Recorded in Nottingham using 'slinky' (top) and horizontal pendulum school seismometers. Followed by M6.4 event nearby at 08.54 UTC
#earthquake ⚒️ #geology 🦕
earthquake.usgs.gov/earthquakes/... &
earthquake.usgs.gov/earthquakes/...
Two seismograms. The first shows a strong P-wave at about 08.16 UTC followed by a slightly smaller response at about 09.07 UTC. The second shows S-wave arrival at about 08.26 UTC and strong surface waves from about 09.50 UTC
November 9, 2025 at 11:42 AM
geooutreach.bsky.social
Estuary wader
Photo showing redshank wading from right to left in shallow water by a muddy estuary bank
November 8, 2025 at 8:44 PM
geooutreach.bsky.social
By the estuary
Photo of a curlew wading by the muddy banks of an estuary. The bird is moving from right to left and looking into the water
November 8, 2025 at 8:29 PM
geooutreach.bsky.social
Passed a tree full of linnets on a walk. Very noisy but well hidden among the branches
Close-up photo of two linnets perched in the high branches of a tree
November 8, 2025 at 8:24 PM
geooutreach.bsky.social
M6.0 earthquake, Kamchatka, at 23.29 UTC on 4 November 2025. P-waves recorded in Nottingham using 'slinky' school seismometer
#earthquake ⚒️ #geology 🦕
earthquake.usgs.gov/earthquakes/...
Seismogram showing P-wave arrival at about 23.40.30 UTC
November 5, 2025 at 10:04 PM
geooutreach.bsky.social
M6.0 earthquake, Kamchatka, at 03.45 UTC on 4 November 2025. Recorded in Nottingham using 'slinky' school seismometer
#earthquake ⚒️ #geology 🦕
earthquake.usgs.gov/earthquakes/...
Seismogram showing P-wave arrival at about 03.57 UTC
November 4, 2025 at 2:00 PM
geooutreach.bsky.social
M5.4 earthquake, Kamchatka, at 19.38 UTC on 2 November 2025. Recorded in Nottingham using 'slinky' school seismometer
#earthquake ⚒️ #geology 🦕
earthquake.usgs.gov/earthquakes/...
Seismogram showing P-wave arrival at about 19.50 UTC
November 3, 2025 at 10:42 PM
Reposted by Geological Outreach
wbuett.bsky.social
Remember, Galena is not only the principal ore for lead, but also an important ore for silver. Vote Galena.
Great Galena cubes, seen in the Mineralogical Museum, Freiberg/Sachsen, Germany
November 3, 2025 at 8:47 AM
geooutreach.bsky.social
M6.1 earthquake, Kamchatka, at 08.44 UTC on 3 November 2025. Recorded in Nottingham using 'slinky' school seismometer
#earthquake ⚒️ #geology 🦕
earthquake.usgs.gov/earthquakes/...
Seismogram showing P-wave arrival at about 08.56 UTC
November 3, 2025 at 1:18 PM
geooutreach.bsky.social
M5.8 earthquake, Kamchatka, at 07.10 UTC on 3 November 2025. Recorded in Nottingham using 'slinky' school seismometer
#earthquake ⚒️ #geology 🦕
earthquake.usgs.gov/earthquakes/...
Seismogram showing P-wave arrival at about 07.22 UTC
November 3, 2025 at 10:54 AM
geooutreach.bsky.social
M6.3 earthquake, Afghanistan, at 20.29 UTC on 2 November 2025. Recorded in Nottingham using (top to bottom) 'slinky', horizontal pendulum, and LEGO school seismometers
#earthquake ⚒️ #geology 🦕
earthquake.usgs.gov/earthquakes/...
Three seismograms. The first and third show P-wave arrivals at about 20.37 UTC. The second shows S-waves from about 20.45 UTC followed by strong surface waves
November 2, 2025 at 9:23 PM
Reposted by Geological Outreach
mineralcup.bsky.social
It’s almost time!

We’re excited. You excited?

Monday 00:00 GMT. 24 hours a match. This is going to be FAST
mineralcup.bsky.social Mineral Cup & Ore Cup @mineralcup.bsky.social · 27d
It's time to make your predictions (and help us test the voting site). Which ore mineral do you think will win?

Bracket: www.mineralcup.org/ore-bracket
Make your predictions: www.mineralcup.org/vote-results...

Competition voting starts on MONDAY NOVEMBER 3!
A stylized trophy filled in with a hand-drawn stratigraphic cross section. The entire image is black and white
November 1, 2025 at 2:02 PM
geooutreach.bsky.social
On the beach
Photo showing a view the sky over a beach with low dark cliffs on the left. The sky is progressively lighter from left to right of the photo with dull grey clouds on the left merging into small white clouds in a blue sky on the right. There is a bright, double rainbow arcing from the horizon on the lower left to the top right of the photo.
October 29, 2025 at 8:05 PM
geooutreach.bsky.social
M5.4 earthquake, Iceland, at 16.46 UTC on 29 October 2025. Recorded in Nottingham using 'slinky' (top) and horizontal pendulum school seismometers
#earthquake ⚒️ #geology 🦕
earthquake.usgs.gov/earthquakes/...
Two seismograms. The first records P-waves from about 16.50 UTC. The second shows surface waves after about 16.54 UTC
October 29, 2025 at 6:24 PM
geooutreach.bsky.social
M6.0 earthquake, Turkey, at 19.48 UTC on 27 October 2025. Recorded in Nottingham using (top to bottom) 'slinky', horizontal pendulum, and LEGO school seismometers
#earthquake ⚒️ #geology 🦕
earthquake.usgs.gov/earthquakes/...
Three seismograms. The first and third show P-wave arrivals at about 19.53 UTC. The second also shows S-wave arrivals at about 19.58 UTC followed by surface waves after about 20.01 UTC
October 27, 2025 at 9:30 PM
geooutreach.bsky.social
M6.5 earthquake, Guadeloupe, at 12.38 UTC on 27 October 2025. Recorded in Nottingham using (top to bottom) 'slinky', horizontal pendulum, and LEGO school seismometers
#earthquake ⚒️ #geology 🦕
earthquake.usgs.gov/earthquakes/...
Three seismograms. The first and third show P-wave arrivals at about 12.48 UTC. The second shows surface waves after about 13.03 UTC. P-waves can also be distinguished in the first seismogram at about 13.04 UTC; these originate from a second, weaker, event (M6.0) close to the epicentre of the first
October 27, 2025 at 5:44 PM
Reposted by Geological Outreach
nadwgab.bsky.social
297 of #365Minerals 🧪⚒️

Triplite:
- A phosphate mineral
- Forms in phosphate-rich granitic pegmatites and hydrothermal veins
- Its name comes from the Greek word "τριπλόος/triplos" (triple) because of its three cleavage planes #minerals
A dark brown triplite pseudocrystal perched on a white crystalline pegmatite. Has a label that says 959 (upside down) on it. From Huntington, Massachusetts, USA. Specimen on display in the Natural History Museum, London. A group of rough looking silvery black crystals. From Hagendorf, Bavaria, Germany. Specimen on display in the Natural History Museum, London.
October 24, 2025 at 10:11 AM
geooutreach.bsky.social
M5.9 earthquake, Costa Rica, at 03.57 UTC on 22 October 2025. Recorded in Nottingham using 'slinky' (top) and @LEGO_Group school seismometers
#earthquake ⚒️ #geology 🦕
earthquake.usgs.gov/earthquakes/...
Two seismograms showing P-wave arrival at about 04.09 UTC
October 22, 2025 at 10:33 AM
geooutreach.bsky.social
M3.7 earthquake, Pubil, Perth & Kinross, at 17.06 UTC on 20 October 2025. Detected in Nottingham using (top to bottom) slinky, horizontal pendulum, and LEGO school seismometers
#earthquake ⚒️ #geology 🦕
earthquakes.bgs.ac.uk/earthquakes/...
Three seismograms showing weak seismic response to small earthquake event at a distance of about 460 km from the detectors. The P-wave arrives at about 17.07.46 UTC and the S-wave at about 17.08.35 UTC
October 20, 2025 at 6:54 PM