Dr Dave Giles
davyg50.bsky.social
Dr Dave Giles
@davyg50.bsky.social
Engineering Geologist, field trip organiser, Pompey fan & New Order/Moby appreciator
Reposted by Dr Dave Giles
Happy Anniversary to the Jurassic Coast World Heritage Site!

The inception of the WHS was 25 years ago today! We will be celebrating over the course of 2026, so stay tuned for lots of events and activities! #UNESCO #worldheritagesite #jurassiccoast
January 21, 2026 at 7:37 AM
Reposted by Dr Dave Giles
HiPOD: A Landslide of Mars

This stunning image shows a landslide in Sirenum Fossae, just on the edge of Daedalia Planum, where multiple lava flows have occurred. What was the geometry of the failure that caused it?

https://uahirise.org/hipod/ESP_076597_1540
NASA/JPL-Caltech/University of Arizona
January 16, 2026 at 3:01 PM
Reposted by Dr Dave Giles
I'm delighted to welcome Robert Jenrick to Reform! One thing our party urgently needs is more frauds.
January 15, 2026 at 8:44 PM
Reposted by Dr Dave Giles
"Idea for a TV show – it's called The Traitors and features a group of Reform politicians competing to win the grand prize of 500,000 Rubles.."
January 13, 2026 at 3:39 PM
Reposted by Dr Dave Giles
Reform unveiled their latest Conservative recruit Nadhim Zahawi - unfortunately he forgot to delete his old tweets accusing Farage of racism...
January 12, 2026 at 5:01 PM
Reposted by Dr Dave Giles
Daily Telegraph reporting Nadhim Zahawi was denied a Conservative peerage weeks before he defected to Reform, Tory sources claim

Zahawi said to have made "multiple approaches" in late 2024, asking to be on the most recent political peerages list.

"We were very clear he wasn’t going to get one.”
January 12, 2026 at 6:37 PM
Reposted by Dr Dave Giles
Reading @snowhydro.bsky.social ‘s excellent memoir MELTDOWN & this line resonates: “dan’s ( @hemlock932.bsky.social ) hands-on observational approach brought the landscape to life & fuelled my desire for fieldwork. I started to feel that a science degree might actually be interesting after all.” 🧪⚒️
January 12, 2026 at 7:53 PM
Reposted by Dr Dave Giles
Nadim Zahawi arrived in the UK from Iraq as a child refugee. His family claimed asylum once they were here. Today he has joined Reform who will stop all in country asylum applications. Under his new party, his own family fleeing persecution would be immediately deported.
January 12, 2026 at 11:25 AM
Reposted by Dr Dave Giles
Did you miss out on all the geological news over the festive period? Our newsletter is here to get you back up-to-date:

BGS scientists gain access to 'once in a lifetime' core
A major update to our mapping data
Using AI to forecast earthquakes

Catch up here:
content.govdelivery.com/accounts/UKB...
January 11, 2026 at 9:30 AM
Reposted by Dr Dave Giles
The arithmetics of glacial till from the Suffolk plateau: Jurassic Kimmeridge Clay + Cretaceous Chalk + Pliocene Crag + Pleistocene erratics from W Midlands, E Midlands, Pennines, Northumbria, Scotland, N Sea, etc, mashed under a colossal ice sheet = the Lowestoft Till.
It's a beast of a deposit.
January 10, 2026 at 4:47 PM
Reposted by Dr Dave Giles
The latest edition to our Greater London Authority #geosites is Gunnersbury Park in Hounslow. The geology is mainly Langley Silt Member, Maidenhead Formation (Pleistocene-Holocene) and parts of the current park were once brick pits. More at londongeopartnership.org.uk/wp/wp-conten... #londongeology
January 11, 2026 at 1:43 PM
Reposted by Dr Dave Giles
I really wish we'd stop calling them climate "skeptics" or "vaccine skeptics", if you jump off a cliff we don't call you a "gravity skeptic"
November 25, 2025 at 8:18 PM
Reposted by Dr Dave Giles
This week I get the chance to present at the Rock Slope and Gravity 2025 (RSG-2025) Conference: Forecasting and Modelling Large Rock Slope Failures in a Changing Mountain Environment. Lots of interesting talks: wp.unil.ch/rsg-2025/pro... It has an option to attend online.
Program - Rock slope and gravity 2025
Program: Rock slope and gravity 2025 (RSG-2025): Forecasting and Modelling Large Rock Slope Failures in a Changing Mountain Environment The program generally follows the original session plan, though ...
wp.unil.ch
November 23, 2025 at 8:56 PM
Reposted by Dr Dave Giles
New! After eight years of waiting, they're online! See London's unbuilt motorways as even their planners never could in our amazing, immersive Ringways Map, hosted by the amazing SABRE Maps. It *might* be the best thing we've ever done. #ringways
The Ringways Map is here
The wait is over! The full map of the Ringways, London’s unbuilt urban motorway network, is now online. Not even the system's planners had anything like this.
www.roads.org.uk
November 3, 2025 at 2:47 PM
Reposted by Dr Dave Giles
Tonight, the Groningen region in the Netherlands was shaken by a magnitude 3.4 #earthquake, according to KNMI. This is the biggest eq in the region in the past 6 years. Here's the seismogram from my Raspishake in Herne, Germany, 211 km away from the epicenter. 🧪⚒️ #Geology

@raspishake.bsky.social
November 14, 2025 at 6:42 AM
Reposted by Dr Dave Giles
BGS SEISMIC INFORMATION: PUBIL, PERTH & KINROSS 20 OCTOBER 2025 17:06 UTC 3.7 ML

The following preliminary information is available for this earthquake:

DATE: 20 October 2025
ORIGIN TIME: 17:06.43s UTC
LAT/LON: 56.551° North / 4.552° West
GRID REF: 243kmE / 743kmN
DEPTH: 2.6 km
MAGNITUDE: 3.7 Ml
October 20, 2025 at 6:10 PM
Reposted by Dr Dave Giles
Terzaghi, a structural engineer specialized in the design of dams, recognized the necessity to consider also the geological surrounding of where a dam was to be constructed. After a project for a dam failed, he invited geoscientists into his team.
...
October 2, 2025 at 4:15 PM
Reposted by Dr Dave Giles
New September 2025 data releases on OpenTopography include Land Information New Zealand (LINZ) lidar over the North Island of New Zealand, SfM topography over the 2019 Ridgecrest rupture, NOAA coastal lidar additions, and additional USGS 3DEP data.

opentopography.org/news/septemb...
October 2, 2025 at 5:44 PM
Reposted by Dr Dave Giles
Come learn about the geology of Edinburgh through a comprehensive introductory course! A series of 6 guided walks and 5 online learning sessions will teach you about the geology of Edinburgh and Scotland at the beginner level. No previous geological knowledge required 📚
September 28, 2025 at 5:56 PM
Reposted by Dr Dave Giles
'Restoring Ghost Pingos' - a new advisory booklet about realising the biodiversity potential of backfilled periglacial ponds - norfolkwildlifetrust.org.uk/LostPonds. 🌍
🧵
February 10, 2025 at 7:33 PM
Reposted by Dr Dave Giles
Lotus's decision in the 1980s to convert its DOS products to OS2 rather than Windows, little remembered today, was one of the truly catastrophic mistakes in modern IT history. Lotus opened the door wide for Excel and Word, and relegated itself to the dustbin of history.
September 16, 2025 at 5:55 PM
Reposted by Dr Dave Giles
Keir Starmer tells his Cabinet that scenes of police under attack at a march "led by a convicted criminal and egged on by a foreign billionaire calling for violence" sent "a chill through the spines" of British people.

Says UK in "the fight of our times" against "toxic division" and "we must win"
September 16, 2025 at 11:45 AM
Reposted by Dr Dave Giles
In good but unexpected email news, the widow of the late Robert Mugabe has cherry-picked me to manage $87,500,000 in investment funds.
September 15, 2025 at 4:50 PM
Reposted by Dr Dave Giles
Reform UK further enhance their image as the party of ordinary people by welcoming Danny Kruger, the Eton/Oxford educated son of multi millionaire parents.
September 15, 2025 at 5:53 PM
Reposted by Dr Dave Giles
Update: Civil War cancelled due to shooter being demographically uncooperative
September 12, 2025 at 4:23 PM