#OTD 30 September 1870 Jean Baptiste Perrin was born. He became a physicist who confirmed the atomic nature of matter (sedimentation equilibrium). For this achievement he was honoured with the Nobel Prize for Physics in 1926.

C’est de la sédimentation. Pour avoir vécu, 1/ on reproduit le dossier papier qui demande copie du RIB et on le rentre à la main. 2/ un consultant te dit : l’usager a qu’à le rentrer ça fera des économies 3/ un chef de service dit ok mais on garde le pdf « au cas où » 4/ y’a pas de 4. Status quo

Meteor crater!! Wishing that the videos or illustrations gave a sense of what this place looked like a day or a year after impact. All images show it from the standpoint of 50k years with crumbling rocks and sedimentation from eons of rain and erosion.

And we know this!!! Concrete changes channel roughness and water velocity , changes sedimentation patterns. This is an extreme example but on the Yellow River, damming actually increased flood risk because of how it changed sediment deposition. bsky.app/profile/lvul...

LVlvulis.bsky.socialAug 24, 2024 2:32pm

Damming the Yellow River *increased* flood risk by increasing downstream roughness due to changes in sediment composition and associated bedform. Stellar work by Hongbo Ma. #DailyPaper www.nature.com/articles/s41...

Amplification of downstream flood stage due to damming of fine-grained rivers - Nature Communications

Dams constructed on fine-grained rivers cause an increase in flow resistance downstream, thereby amplifying, rather than reducing, flood stage.

Ice ages and warmer periods shaped the landscape on our course. Most of it we can’t see anymore because time and erosion made them disappear under layers of sedimentation. Valleys that were once hundreds of meters deep are now filled in to form relatively flat roads for our riders. #zurich2024

Yes, you would need a depositional environment, but large numbers of humans live in areas with high sedimentation rates like deltas.

Hi, #sedimentology community, trying to locate some table/figure comparing sedimentation/accumulation rates of different lithologies (with carbonates and evaporites). I vaguely remember a figure in a book, but not which one. Does anyone have anything handy? ⚒️

Yep I don’t think you have to use them all it’s a sedimentation of different generations of IT systems from different suppliers. I’ve found V-Consult very useful!! But Katie Rd Walk-Centre saved my life and it’s not open access these days. Ideal for typical blokes who put off going to Drs

For runoff and sedimentation reasons, or for extremely stupid reasons?

There's sediement accommodation space (gradually) opened up by a few mechanisms. It might be more informative to compare to something like sedimentation rate or other properties of the formations fossils are being recovered from? It would also eliminate dependence on the paleogeographic model. 2/2