Bernd Andeweg
@berndandeweg.bsky.social
Earth sciences - geology - tectonics - earthquakes - fieldwork - teaching - outreach - Vrije Universiteit Amsterdam - aardbeving - vulkanen - Aardwetenschappen
Also active as
https://bsky.app/profile/berndandeweg.mastodon.nl.ap.brid.gy
Also active as
https://bsky.app/profile/berndandeweg.mastodon.nl.ap.brid.gy
En op veel plekken in de stad (o.a. Oude Haven parkeervakken, stoepen en straten Kerkhof en Balie rond de Nieuwe Kerk): sedimentaire structuren!
November 15, 2025 at 12:04 PM
En op veel plekken in de stad (o.a. Oude Haven parkeervakken, stoepen en straten Kerkhof en Balie rond de Nieuwe Kerk): sedimentaire structuren!
Goniatieten ook nog bij de Landskamer en Zoutkeet
November 15, 2025 at 10:32 AM
Goniatieten ook nog bij de Landskamer en Zoutkeet
Gobertanghe kalksteen, vol algenlaminatie op veel plekken met graafgangen van kreeftachtigen oid. Ronde gangen, gevuld met losgewoelde zeebodem. Ook op Gravensteen, Noorderhavenpoort
November 15, 2025 at 10:29 AM
Gobertanghe kalksteen, vol algenlaminatie op veel plekken met graafgangen van kreeftachtigen oid. Ronde gangen, gevuld met losgewoelde zeebodem. Ook op Gravensteen, Noorderhavenpoort
Of verstoorde algenlaminatie en bivalven in de Zuiderhavenpoort
November 15, 2025 at 9:53 AM
Of verstoorde algenlaminatie en bivalven in de Zuiderhavenpoort
Goniatiet in de stoep van Meelstraat 50 bijv.
November 15, 2025 at 9:50 AM
Goniatiet in de stoep van Meelstraat 50 bijv.
Are those the same ones as everywhere in Amsterdam Centrum?
November 13, 2025 at 8:28 AM
Are those the same ones as everywhere in Amsterdam Centrum?
Met heel wat understatement: dat was een prettig concert #KingHannah @paradisoadam.bsky.social
November 12, 2025 at 9:45 PM
Met heel wat understatement: dat was een prettig concert #KingHannah @paradisoadam.bsky.social
Poe... dat was bijzonder leuk, 100+ kids en (groot)ouders bij #HOVO Kindercollege @vuamsterdam.bsky.social natuurlijk vulkanen van chilisaus of dikke honing, zeevruchtenbanket om te laten zien hoe fossielen er uit kunnen zien als je ze in verschillende richting doorzaagt en stinksteen in NU.VU
November 1, 2025 at 4:21 PM
Poe... dat was bijzonder leuk, 100+ kids en (groot)ouders bij #HOVO Kindercollege @vuamsterdam.bsky.social natuurlijk vulkanen van chilisaus of dikke honing, zeevruchtenbanket om te laten zien hoe fossielen er uit kunnen zien als je ze in verschillende richting doorzaagt en stinksteen in NU.VU
Zaterdag een #HOVO Kindercollege voor 100+ kinderen en hun (groot)ouders @vuamsterdam.bsky.social met als titel 'Wat zegt een steen?' Niks toch? Leren luisteren = leren kijken. Was het een rivier, een diepzee, een strand uit de dino-tijd of het binnenste van een #vulkaan? #zinin
October 30, 2025 at 6:41 PM
Zaterdag een #HOVO Kindercollege voor 100+ kinderen en hun (groot)ouders @vuamsterdam.bsky.social met als titel 'Wat zegt een steen?' Niks toch? Leren luisteren = leren kijken. Was het een rivier, een diepzee, een strand uit de dino-tijd of het binnenste van een #vulkaan? #zinin
Post a perfect album from the 90's that isn't Nirvana, Pearl Jam, Soundgarden, or Alice in Chains.
October 29, 2025 at 8:49 PM
Post a perfect album from the 90's that isn't Nirvana, Pearl Jam, Soundgarden, or Alice in Chains.
Greetings from nearly the same rocks in SW Portugal...
October 26, 2025 at 7:29 PM
Greetings from nearly the same rocks in SW Portugal...
This was hilarious to see: a young gekko trying to catch a spider. Or, at least the shadow of a spider... 😂😍
October 25, 2025 at 5:01 PM
This was hilarious to see: a young gekko trying to catch a spider. Or, at least the shadow of a spider... 😂😍
Ik lees dit. Herken je dat?
October 24, 2025 at 8:27 PM
Ik lees dit. Herken je dat?
No, this is not Zumaya.. but #Flysches: yes. #Carboniferous of age in the South Portuguese Zone. Trying to figure out paleocurrents during deposition and joint orientation and density depending on thickness of competent and incompetent layers. #Sedimentology meets #Structural #Geology
#Odeceixe
#Odeceixe
October 23, 2025 at 9:18 PM
No, this is not Zumaya.. but #Flysches: yes. #Carboniferous of age in the South Portuguese Zone. Trying to figure out paleocurrents during deposition and joint orientation and density depending on thickness of competent and incompetent layers. #Sedimentology meets #Structural #Geology
#Odeceixe
#Odeceixe
Back along the Portuguese SW coast for some geology! MSc students to do research on paleocurrents in the flysches and relations between bed thickness and veins.
October 18, 2025 at 10:31 PM
Back along the Portuguese SW coast for some geology! MSc students to do research on paleocurrents in the flysches and relations between bed thickness and veins.
And some more today... students are finishing their maps (geomorph and geology), strat column, profile and notes. Last day of a very nice week.
October 2, 2025 at 8:06 PM
And some more today... students are finishing their maps (geomorph and geology), strat column, profile and notes. Last day of a very nice week.
A bit far fetched sometimes for students that only studied 4 weeks, but why not explain joints with plumose structures and hackle fringes, or shale pencil shapes (S0/S1) to distinguish between limbs and hinge line (near rectangular)
October 1, 2025 at 3:35 PM
A bit far fetched sometimes for students that only studied 4 weeks, but why not explain joints with plumose structures and hackle fringes, or shale pencil shapes (S0/S1) to distinguish between limbs and hinge line (near rectangular)
Pretty lucky with the weather on our fieldwork with 1st years in the #Ardennes. Always fun to show them how to gather information from outcrops, building stratigraphy, understanding folding and linking that to geomorphology.
#teaching #aardwetenschappen @vuamsterdam.bsky.social
#teaching #aardwetenschappen @vuamsterdam.bsky.social
September 29, 2025 at 5:35 PM
Pretty lucky with the weather on our fieldwork with 1st years in the #Ardennes. Always fun to show them how to gather information from outcrops, building stratigraphy, understanding folding and linking that to geomorphology.
#teaching #aardwetenschappen @vuamsterdam.bsky.social
#teaching #aardwetenschappen @vuamsterdam.bsky.social
Same here, in the Ardennes
September 28, 2025 at 9:05 PM
Same here, in the Ardennes
On our way to the #Ardennes, we stop in Limburg (southern Netherlands) to study the gravel of the Meuse river, some of the terraces and the grainstones of the #Maastrichtian below. #Aardwetenschappen @vuamsterdam.bsky.social
September 26, 2025 at 4:06 PM
On our way to the #Ardennes, we stop in Limburg (southern Netherlands) to study the gravel of the Meuse river, some of the terraces and the grainstones of the #Maastrichtian below. #Aardwetenschappen @vuamsterdam.bsky.social
Orthogonal lines are not anymore! So the red line used to be under 90 degrees with the dashed blue. The angle (white arc) between the present orientation (lighter blue) and the dashed blue line is a measure of the angular shear undergone by the trilobite. As if you did not know... 😉
September 25, 2025 at 5:05 PM
Orthogonal lines are not anymore! So the red line used to be under 90 degrees with the dashed blue. The angle (white arc) between the present orientation (lighter blue) and the dashed blue line is a measure of the angular shear undergone by the trilobite. As if you did not know... 😉
Wat bedoelen ze nou? Recht door. Of niet?
September 24, 2025 at 1:08 PM
Wat bedoelen ze nou? Recht door. Of niet?
