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Daan Beelen Profile
Daan Beelen

@daanosaurus_rex

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440
Following
344
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149
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248

Researching and teaching sedimentology and stratigraphy

Utrecht, the Netherlands
Joined March 2017
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@daanosaurus_rex
Daan Beelen
27 days
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@daanosaurus_rex
Daan Beelen
7 months
This is the first upload of out new YouTube Channel "GEOSHOW" featuring Professor Jan Smit who (co)discovered why the dinosaurs went extinct back in the 80s. prof Smit provides a very clear and understandable narrative on who discovered what at which point in time, unbelievable
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@daanosaurus_rex
Daan Beelen
9 months
Red Aardwetenschappen aan de VU! - Sign the Petition! https://t.co/PBVFv98WFh via @Change
change.org
Red Aardwetenschappen aan de VU!
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@daanosaurus_rex
Daan Beelen
11 months
out of all the lecture slides I've made this is probably the best one
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@daanosaurus_rex
Daan Beelen
11 months
Honored to have received the Robert Mitchum Award from the European Association of Geoscientists & Engineers (EAGE) for my work: https://t.co/6JrkOPoZCF. This is already the 2nd award for this work! Thanks to my co-author Lesli Wood and to EAGE for this recognition!
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@daanosaurus_rex
Daan Beelen
1 year
The differences between our best images of Jupiter from 1610 and 2020.
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@daanosaurus_rex
Daan Beelen
1 year
Enhanced satellite photo shows the colorful geology of an exposed salt dome in Southern Iran.
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@daanosaurus_rex
Daan Beelen
1 year
Glaciers calving into the ocean on Bouvet Island
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@daanosaurus_rex
Daan Beelen
1 year
High water has flooded the distributary channels of the Nadim Delta, leaving only some levees and meander scrolls exposed.
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@daanosaurus_rex
Daan Beelen
1 year
Here's some weird or just very long Dutch translations for common geological terms: Basin floor fan = Bekkenbodemwaaier Oxbow lake = Kronkelwaard Sea surface temperature = Zeeoppervlaktetemperatuur Turbidity current = Troebelheidstroom Shelf-edge trajectory = Bekkenrandtraject
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@daanosaurus_rex
Daan Beelen
1 year
https://t.co/atGunlcT9u Honored to receive the Basin Research Early Career Award for 2023! Thank you, @TheMountainPig , @sedimentology @UU_PhysGeog !
@sedimentology
International Association of Sedimentologists IAS
1 year
The Basin Research @BasinResearch Early Career Award 2023 went to Daan Beelen @daanosaurus_rex for the paper titled 'Predicting bottom current deposition and erosion on the ocean floor' that can be found free here: https://t.co/6fkPomedrp Congratulations!
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@sedimentology
International Association of Sedimentologists IAS
1 year
The Basin Research @BasinResearch Early Career Award 2023 went to Daan Beelen @daanosaurus_rex for the paper titled 'Predicting bottom current deposition and erosion on the ocean floor' that can be found free here: https://t.co/6fkPomedrp Congratulations!
Tweet card summary image
onlinelibrary.wiley.com
The map prediction displays regions of bottom current deposition (green), bottom current erosion (red), and different types of bottom current stasis. The stasis areas include excessive sediment...
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@daanosaurus_rex
Daan Beelen
1 year
Beautiful satellite image of the remote Vava'u Island Group in the Kingdom of Tonga, Pacific Ocean
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@daanosaurus_rex
Daan Beelen
2 years
Some very cool trains of cross-stratified heterolithic siliciclastics from the Carboniferous in the Ardennes, Belgium. These are probably shallow marine (tidal?) sandstones and siltstones.
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@daanosaurus_rex
Daan Beelen
2 years
Here's another attempt at highlighting river scale, superimposing the Netherlands with a portion of the Ob river's channel belt.
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@daanosaurus_rex
Daan Beelen
2 years
The sizes of the world's largest rivers can be hard to wrap your head around. The Amazon's main channel can easily cover the city of Amsterdam, while channel belts can exceed 70 km in width, easily exceeding the distance Utrecht-Amsterdam. All images below are on the same scale:
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@daanosaurus_rex
Daan Beelen
2 years
A large braided stream runs parallel to a meandering stream in the Amazon Rainforest. They combine into a single braided stream.
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@daanosaurus_rex
Daan Beelen
2 years
This is another rare example of deep ocean barchans. In this case, they are visible in seismic time slices off the coast of Uruguay. These Cretaceous dunes made out of foraminiferal sand, migrated parallel to the slope, probably driven by thermohaline currents.
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@daanosaurus_rex
Daan Beelen
2 years
These are barchan dunes at a depth of over 2700 m. They were imaged using high-resolution sonar back in the 70s (Lonsdale and Malfait, 1974). Such deep ocean barchan dunes are probably common but only 1-2% of the ocean floor has been mapped in sufficient resolution to see them.
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@daanosaurus_rex
Daan Beelen
2 years
The Utrecht University quiz system is fully automated and allows me to watch my students pass (and fail) in real time.
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