David Webster
@davidjwebster.bsky.social
Geologist, Islay geology guide book author, Fossil Grove trustee, whisky lover. Secretary Geological Society of Glasgow.
Come to the Fossil Grove this Sunday (15th) - anytime 12-4. Come and hear about what's going on with the renovation programme. Tours of the quarry area. Children's activities. Displays and fossils. (Note: The building itself is closed).
www.fossilgroveglasgow.org
www.fossilgroveglasgow.org
June 11, 2025 at 9:57 PM
Come to the Fossil Grove this Sunday (15th) - anytime 12-4. Come and hear about what's going on with the renovation programme. Tours of the quarry area. Children's activities. Displays and fossils. (Note: The building itself is closed).
www.fossilgroveglasgow.org
www.fossilgroveglasgow.org
Good turn out today for a geology walk on the Rhinns of Islay. 1.8 Ga Metagabbro and syenitic gneiss. Triassic faulting, Paleocene dykes and late glacial raised beaches... www.islaygeology.org
June 1, 2025 at 8:25 PM
Good turn out today for a geology walk on the Rhinns of Islay. 1.8 Ga Metagabbro and syenitic gneiss. Triassic faulting, Paleocene dykes and late glacial raised beaches... www.islaygeology.org
@bobgooday.bsky.social bob, any idea about this rock? i was sent a photo and would like to get back to the sender. its from lamlash on arran so immediately thought of you! i think some form of explosion breccia with a carbonate infill? thanks
December 28, 2024 at 9:52 PM
@bobgooday.bsky.social bob, any idea about this rock? i was sent a photo and would like to get back to the sender. its from lamlash on arran so immediately thought of you! i think some form of explosion breccia with a carbonate infill? thanks
Nice anticline in metagreywackes at Saligo Bay, Islay. The area is known as The Arches' after the fold. Colonsay Group (earliest Dalradian, c. 800 Ma) #fridayfold
November 22, 2024 at 7:34 PM
Nice anticline in metagreywackes at Saligo Bay, Islay. The area is known as The Arches' after the fold. Colonsay Group (earliest Dalradian, c. 800 Ma) #fridayfold
New paper helps tie down the start, age and duration of the Cryogenian 'Sturtian' glaciation. Zircons in the Port Askaig Formation from the Garvellach Islands show YSG younging-upwards and help the case for a 'Golden Spike' there. For now we make do with a golden carrot! doi.org/10.1144/jgs2...
August 23, 2024 at 10:11 AM
New paper helps tie down the start, age and duration of the Cryogenian 'Sturtian' glaciation. Zircons in the Port Askaig Formation from the Garvellach Islands show YSG younging-upwards and help the case for a 'Golden Spike' there. For now we make do with a golden carrot! doi.org/10.1144/jgs2...
Geological Society of Glasgow Monthly Lecture - Thursday 14th March 2024
Dr. Murray Reid,
“What lies beneath: the geology of Strathkelvin”
Boyd Orr Building 7.00 pm
Dr. Murray Reid,
“What lies beneath: the geology of Strathkelvin”
Boyd Orr Building 7.00 pm
March 5, 2024 at 8:05 PM
Geological Society of Glasgow Monthly Lecture - Thursday 14th March 2024
Dr. Murray Reid,
“What lies beneath: the geology of Strathkelvin”
Boyd Orr Building 7.00 pm
Dr. Murray Reid,
“What lies beneath: the geology of Strathkelvin”
Boyd Orr Building 7.00 pm
We find these in the 650 Ma Bonahaven Formation on Islay. We call them Flake Breccias ie bits of ripped up or wind-blown microbial mat deposited in dessication cracks ...aka flake pockets.
February 10, 2024 at 1:06 PM
We find these in the 650 Ma Bonahaven Formation on Islay. We call them Flake Breccias ie bits of ripped up or wind-blown microbial mat deposited in dessication cracks ...aka flake pockets.
Geological society of glasgow - 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?…
us02web.zoom.us/j/87137408991?…
February 2, 2024 at 8:02 PM
Geological society of glasgow - 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?…
us02web.zoom.us/j/87137408991?…
TV camera at the fossil grove today. Much excitement! Glasgow City Council has agreed to fund £450,000 worth of repairs to the building to help conserve the fossils for future generations to enjoy.. a big result for geoconservation!
November 30, 2023 at 1:45 PM
TV camera at the fossil grove today. Much excitement! Glasgow City Council has agreed to fund £450,000 worth of repairs to the building to help conserve the fossils for future generations to enjoy.. a big result for geoconservation!
The 'billion-year gap' at Kilchiaran Bay, Islay. 1.8 Ga gneiss on right, 800 Ma meta-arkoses on left. Sinistral shear sense.
November 25, 2023 at 9:33 PM
The 'billion-year gap' at Kilchiaran Bay, Islay. 1.8 Ga gneiss on right, 800 Ma meta-arkoses on left. Sinistral shear sense.