#carbonate — Public Fediverse posts

Infertilité, malformations fœtales... L’Anses alerte sur le #lithium https://www.anses.fr/fr/content/lithium-mieux-connaitre-les-expositions-pour-maitriser-les-risques-sanitaires-et une «substance extrêmement préoccupante»

La dangerosité du lithium, utilisé dans la fabrication des #batteries et certains #médicaments, se confirme. Le 16 avril, l’ #Anses a rendu public un avis sur les effets néfastes de ce minerai et de 3 de ses sels, #carbonate, #chlorure et #hydroxydedelithium, sur la #santé. https://reporterre.net/Infertilite-malformations-foetales-thyroide-L-Anses-alerte-sur-le-lithium-substance-extremement-preoccupante

#pollution #environnement #actu #info #information #actualites

RE: https://social.uibk.ac.at/@uniinnsbruck/115972142132584167

The #ancient #Roman #city of #Pompeii at the Gulf of #Naples offers remarkably #wellpreserved #insights into #dailylife before it was buried by Mount #Vesuvius in 79 AD. G. Sürmelihindi et al. (2026) investigated the #carbonate #incrustations in the #baths, the #aqueduct, and in #wells, with the latter being replaced by the penultimate as #technical #improvement. The periodicity of #δ13C variations from wells and republican #pools indicated poor #hygienicconditions.
©this text #StefanFWirth 2026

RE: https://social.uibk.ac.at/@uniinnsbruck/115972142132584167

The #ancient #Roman #city of #Pompeii at the Gulf of #Naples offers remarkably #wellpreserved #insights into #dailylife before it was buried by Mount #Vesuvius in 79 AD. G. Sürmelihindi et al. (2026) investigated the #carbonate #incrustations in the #baths, the #aqueduct, and in #wells, with the latter being replaced by the penultimate as #technical #improvement. The periodicity of #δ13C variations from wells and republican #pools indicated poor #hygienicconditions.
©this text #StefanFWirth 2026

Hygienic conditions in Pompeii’s early baths were poor: Limescale deposits in wells, pipes, and bathing facilities provide information about Pompeii's ancient water supply 👉 https://press.uni-mainz.de/hygienic-conditions-in-pompeiis-early-baths-were-poor/

#WaterManagement #Pompeii #geoarchaeology #carbonate #geosciences #geoscience

Hygienic conditions in Pompeii’s early baths were poor: Limescale deposits in wells, pipes, and bathing facilities provide information about Pompeii's ancient water supply 👉 https://press.uni-mainz.de/hygienic-conditions-in-pompeiis-early-baths-were-poor/

#WaterManagement #Pompeii #geoarchaeology #carbonate #geosciences #geoscience

Carbonated Ultramafic Igneous Rocks In Jezero Crater, Mars [NASA's Perseverance Rover]
--
https://doi.org/10.1126/science.adu8264 <-- shared paper
--
#Perseverance #rover #JezeroCrater #Mars #geology #exploration #extraterrestrial #hydrography #water #hydrology #hydrospatial #magmatic #rocks #life #carbonate #Martian #geochemistry #sampling #sediment #lacustrine #fan #fluvial #Aqueous
#UKSpaceAgency | #NASA

Carbonated Ultramafic Igneous Rocks In Jezero Crater, Mars [NASA's Perseverance Rover]
--
https://doi.org/10.1126/science.adu8264 <-- shared paper
--
#Perseverance #rover #JezeroCrater #Mars #geology #exploration #extraterrestrial #hydrography #water #hydrology #hydrospatial #magmatic #rocks #life #carbonate #Martian #geochemistry #sampling #sediment #lacustrine #fan #fluvial #Aqueous
#UKSpaceAgency | #NASA

🚨 talk announcement! 🚨

How does the geological record form?

We can observe modern depositional environments using advanced remote sensing and direct sampling.
We can observe geological strata through seismics, drillcores, and direct sampling.

What happens in between?

Xianyi Liu in my team is trying to find out, using the oldest known aerial photographs of the #Bahamas, and comparing them with today's facies distribution. It's a journey through #carbonate #sedimentology, #GIS, modelling and #MachineLearning. If you'd like a sneak peek, join his talk coming Tuesday at 17:00 CET at PaleoPERCS.
Please register at https://paleopercs.com/ - you get a Zoom link when you've registered.
#EarthScience #geoscience #RemoteSensing #geology

🚨 talk announcement! 🚨

How does the geological record form?

We can observe modern depositional environments using advanced remote sensing and direct sampling.
We can observe geological strata through seismics, drillcores, and direct sampling.

What happens in between?

Xianyi Liu in my team is trying to find out, using the oldest known aerial photographs of the #Bahamas, and comparing them with today's facies distribution. It's a journey through #carbonate #sedimentology, #GIS, modelling and #MachineLearning. If you'd like a sneak peek, join his talk coming Tuesday at 17:00 CET at PaleoPERCS.
Please register at https://paleopercs.com/ - you get a Zoom link when you've registered.
#EarthScience #geoscience #RemoteSensing #geology

Some more #work stuff.

Getting an European Research Council (ERC) grant had this terrible outcome that I thought: now we can do in-depth, thoughtful research without cutting corners and ducktape solutions. Understanding #evolution in the #fossil record required a reproducible model representation of that record and we weren't satisfied with any of the existing models. Computer models made by (Earth) scientists are rarely very good, because we are not necessarily trained to make them, but to model events happening over hundreds of thousands of years, we crucially rely on their quality.

So we decided to develop one. Thanks to its main developer Johan Hidding @eScienceCenter and the collaboration with Peter Burgess, Xianyi Liu and @Niklas_Hohmann we have a fast, sustainable, #OpenSource package in #julialang for modeling #carbonate platforms.

The preprint is out for public review: please leave us a comment at https://egusphere.copernicus.org/preprints/2025/egusphere-2025-4561/ or try CarboKitten.jl at https://mindthegap-erc.github.io/CarboKitten.jl/
#geoscience #stratigraphy #sedimentology

Some more #work stuff.

Getting an European Research Council (ERC) grant had this terrible outcome that I thought: now we can do in-depth, thoughtful research without cutting corners and ducktape solutions. Understanding #evolution in the #fossil record required a reproducible model representation of that record and we weren't satisfied with any of the existing models. Computer models made by (Earth) scientists are rarely very good, because we are not necessarily trained to make them, but to model events happening over hundreds of thousands of years, we crucially rely on their quality.

So we decided to develop one. Thanks to its main developer Johan Hidding @eScienceCenter and the collaboration with Peter Burgess, Xianyi Liu and @Niklas_Hohmann we have a fast, sustainable, #OpenSource package in #julialang for modeling #carbonate platforms.

The preprint is out for public review: please leave us a comment at https://egusphere.copernicus.org/preprints/2025/egusphere-2025-4561/ or try CarboKitten.jl at https://mindthegap-erc.github.io/CarboKitten.jl/
#geoscience #stratigraphy #sedimentology

The water management of ancient Arles: Using carbonate fragments, researchers from Mainz, Oxford, and Innsbruck have deciphered the complex history of the Arles aqueduct system 👉 https://press.uni-mainz.de/the-water-management-of-ancient-arles/

#RomanAqueduct #Roman #WaterManagement #aqueduct #carbonate #geoarchaeology #geosciences #Arles #Barbegal #geoscience

Researchers propose a transfer learning strategy for fault identification of deep fault-karst #carbonate. #openaccess at https://www.sciencedirect.com/science/article/pii/S2352854025000221. #Seismicfault #Transferlearning #ArtificialIntelligence

Nice study testing models for #solid #state #reordering of #clumped #isotope values in #carbonate.
https://www.sciencedirect.com/science/article/pii/S0016703725001012

Nice study testing models for #solid #state #reordering of #clumped #isotope values in #carbonate.
https://www.sciencedirect.com/science/article/pii/S0016703725001012

From farmland to construction: #Bacteria strains offer #sustainable #biocement solution.

#enzyme #carbonate

https://phys.org/news/2025-02-farmland-bacteria-strains-sustainable-biocement.html

From farmland to construction: #Bacteria strains offer #sustainable #biocement solution.

#enzyme #carbonate

https://phys.org/news/2025-02-farmland-bacteria-strains-sustainable-biocement.html

#Carbonate-dissolving #microorganisms could be key to #sustainable #bioenergy.

#mightymicrobes #methanogens #wetlands #sediment #microbiomes #metagenomics

https://phys.org/news/2025-02-carbonate-dissolving-microorganisms-key-sustainable.html

#Carbonate-dissolving #microorganisms could be key to #sustainable #bioenergy.

#mightymicrobes #methanogens #wetlands #sediment #microbiomes #metagenomics

https://phys.org/news/2025-02-carbonate-dissolving-microorganisms-key-sustainable.html

Rocks breaking in tension, compression, and shear; an interesting teaching talk yesterday by Dr. Drew Lubiniecki. Below is a fascinating figure showing the loss of porosity in deformation bands (DB) in a sheared carbonate. The original porosity is shown in blue.

From Lubiniecki et al. (2019) J. Structural Geology 126:11–24

#McGillUniversity #StructuralGeology #UniversityAdelaide #Carbonate

Rocks breaking in tension, compression, and shear; an interesting teaching talk yesterday by Dr. Drew Lubiniecki. Below is a fascinating figure showing the loss of porosity in deformation bands (DB) in a sheared carbonate. The original porosity is shown in blue.

From Lubiniecki et al. (2019) J. Structural Geology 126:11–24

#McGillUniversity #StructuralGeology #UniversityAdelaide #Carbonate

Just a gentle reminder that through geological time, shifts in #carbonate producers mean that the geometry of carbonate platforms (as well as #reef shape) changed.
Please try to keep that in mind when drawing your models. I'm trying to stay mad, but I'm actually just growing disappointed.

Just a gentle reminder that through geological time, shifts in #carbonate producers mean that the geometry of carbonate platforms (as well as #reef shape) changed.
Please try to keep that in mind when drawing your models. I'm trying to stay mad, but I'm actually just growing disappointed.

Somehow, with everything going on, I forgot to acknowledge that the term started (and now a few weeks in). As taxing as it is, it's nice to be back in the classroom. Being able to talk about the #marine #carbon system and #carbonate rocks to #students is a nice change of pace.

Somehow, with everything going on, I forgot to acknowledge that the term started (and now a few weeks in). As taxing as it is, it's nice to be back in the classroom. Being able to talk about the #marine #carbon system and #carbonate rocks to #students is a nice change of pace.

Thermal-induced #crystallographic transformation in shells of #mussels reveal that crystallographic features in the #carbonate are more resistant to #diagenetic alteration than stable #isotope ratios.
https://www.sciencedirect.com/science/article/pii/S0031018224005121

Thermal-induced #crystallographic transformation in shells of #mussels reveal that crystallographic features in the #carbonate are more resistant to #diagenetic alteration than stable #isotope ratios.
https://www.sciencedirect.com/science/article/pii/S0031018224005121

#WeekendReading: Cala et al. on the dissolution kinetics of #carbonate minerals in the oceanic water column. Showing that the dissolution rate is proportional to the saturation state, seems trivial, but it really isn't.
Something like this was much needed for a while now.
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023GB008009

#WeekendReading: Cala et al. on the dissolution kinetics of #carbonate minerals in the oceanic water column. Showing that the dissolution rate is proportional to the saturation state, seems trivial, but it really isn't.
Something like this was much needed for a while now.
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023GB008009

#ShowYourStripes get new meanings as now you can also generate #biodiversity stripes as well as (for use #carbonate people) #OceanAcidification and aragonite saturation for different #ocean basins https://oceanacidificationstripes.info/

#ShowYourStripes get new meanings as now you can also generate #biodiversity stripes as well as (for use #carbonate people) #OceanAcidification and aragonite saturation for different #ocean basins https://oceanacidificationstripes.info/

#NewPaper out in the world!
What destroys a #carbonate (#mesophotic) platform? It turns out that erosion, destabilization, and lower slope dismantling all work independently of each other.
https://sciencedirect.com/science/article/pii/S0025322724001452
More cool results from expedition #SO292

#NewPaper out in the world!
What destroys a #carbonate (#mesophotic) platform? It turns out that erosion, destabilization, and lower slope dismantling all work independently of each other.
https://sciencedirect.com/science/article/pii/S0025322724001452
More cool results from expedition #SO292

Layers of #carbonate provide insight into the world of the #ancientRomans: Carbonate deposits help researchers to reconstruct the development of the former water mills of #Barbegal // #geoarchaeology @uni_mainz_eng @wileyearthspace
https://nachrichten.idw-online.de/2024/07/01/layers-of-carbonate-provide-insight-into-the-world-of-the-ancient-romans

Layers of #carbonate provide insight into the world of the #ancientRomans: Carbonate deposits help researchers to reconstruct the development of the former water mills of #Barbegal // #geoarchaeology @uni_mainz_eng @wileyearthspace
https://nachrichten.idw-online.de/2024/07/01/layers-of-carbonate-provide-insight-into-the-world-of-the-ancient-romans

#WeekendReading: Catching up on Wei and Zhang's thoughts on shallow-water #carbonate early #diagenesis. I think I'd like to play again at some point with this idea of diagenesis based correlation.
https://www.sciencedirect.com/science/article/pii/S0012821X24002395

#WeekendReading: Catching up on Wei and Zhang's thoughts on shallow-water #carbonate early #diagenesis. I think I'd like to play again at some point with this idea of diagenesis based correlation.
https://www.sciencedirect.com/science/article/pii/S0012821X24002395

Cold seeps are apparently rather prevalent on the US Atlantic margin. To me that supports that near-seafloor #authigenic #carbonate formation (which happens there) is likely much more prevalent than previously considered.
https://www.usgs.gov/centers/whcmsc/news/refining-distribution-and-evolution-us-atlantic-margin-methane-seeps

Cold seeps are apparently rather prevalent on the US Atlantic margin. To me that supports that near-seafloor #authigenic #carbonate formation (which happens there) is likely much more prevalent than previously considered.
https://www.usgs.gov/centers/whcmsc/news/refining-distribution-and-evolution-us-atlantic-margin-methane-seeps

We've been working on a massive riddle tying together #self-organization, #carbonate #diagenesis, reactive transport, #paleoclimate and #Milankovich cycles, and very stiff PDE systems.

If you've missed the poster at #egu24, you can still find it attached to the abstract in the conference program (https://meetingorganizer.copernicus.org/EGU24/EGU24-16400.html) and on Zenodo https://zenodo.org/records/10943274 If you're into numerical methods, tricky PDEs or other aspects of #modeling, please see if you have any advice to us 😄 #solvers #PDE

We've been working on a massive riddle tying together #self-organization, #carbonate #diagenesis, reactive transport, #paleoclimate and #Milankovich cycles, and very stiff PDE systems.

If you've missed the poster at #egu24, you can still find it attached to the abstract in the conference program (https://meetingorganizer.copernicus.org/EGU24/EGU24-16400.html) and on Zenodo https://zenodo.org/records/10943274 If you're into numerical methods, tricky PDEs or other aspects of #modeling, please see if you have any advice to us 😄 #solvers #PDE

In case you missed it - my talk from last week at the at #DGGV Sedimentology Lunch on how #carbonate factories in the #Mediterranean responded to it's restriction over the #Miocene is now available on YouTube.
https://youtu.be/GuVPQqhsxF0

In case you missed it - my talk from last week at the at #DGGV Sedimentology Lunch on how #carbonate factories in the #Mediterranean responded to it's restriction over the #Miocene is now available on YouTube.
https://youtu.be/GuVPQqhsxF0

#Ediacaran #fossils reveal origins of #biomineralization that led to expansion of life on Earth
https://phys.org/news/2023-09-ediacaran-fossils-reveal-biomineralization-expansion.html

Constraining the onset and environmental setting of #metazoan biomineralization https://www.sciencedirect.com/science/article/pii/S0012821X23003497

"#Cloudina originated in a low #oxygen environment with periods of notably higher #oxygenation... it was not a case of sustained oxygenation that resulted in the appearance of #skeletonization... high #carbonate concentrations in the ocean were necessary"

#Ediacaran #fossils reveal origins of #biomineralization that led to expansion of life on Earth
https://phys.org/news/2023-09-ediacaran-fossils-reveal-biomineralization-expansion.html

Constraining the onset and environmental setting of #metazoan biomineralization https://www.sciencedirect.com/science/article/pii/S0012821X23003497

"#Cloudina originated in a low #oxygen environment with periods of notably higher #oxygenation... it was not a case of sustained oxygenation that resulted in the appearance of #skeletonization... high #carbonate concentrations in the ocean were necessary"

#Calcite can form when cool groundwater warms as it rises to the surface. Calcium carbonate exhibits inverse solubility -it's less soluble in warmer water. As a result #tufa deposits can form -like those at Mono Lake. A nice write up of groundwater carbonate deposits at:
https://www.ontariobeneathourfeet.com/flowstone-travertine-and-tufa
#MinCup23 #Ontario #Carbonate #MineralSprings

#Calcite can form when cool groundwater warms as it rises to the surface. Calcium carbonate exhibits inverse solubility -it's less soluble in warmer water. As a result #tufa deposits can form -like those at Mono Lake. A nice write up of groundwater carbonate deposits at:
https://www.ontariobeneathourfeet.com/flowstone-travertine-and-tufa
#MinCup23 #Ontario #Carbonate #MineralSprings

Developing Tailored Data Combination Strategies to Optimize the #SuperCam Classification of Carbonate Phases on Mars: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023EA002829 -> Optimizing #Carbonate Classification on #Mars: https://eos.org/research-spotlights/optimizing-carbonate-classification-on-mars - combining data from several of #Perseverance rover’s spectroscopic sensors offers a more accurate means to classify carbonate #minerals that may hold hints of ancient life.

Developing Tailored Data Combination Strategies to Optimize the #SuperCam Classification of Carbonate Phases on Mars: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023EA002829 -> Optimizing #Carbonate Classification on #Mars: https://eos.org/research-spotlights/optimizing-carbonate-classification-on-mars - combining data from several of #Perseverance rover’s spectroscopic sensors offers a more accurate means to classify carbonate #minerals that may hold hints of ancient life.

The Art Of Roman Water Management Revealed
--
https://phys.org/news/2023-08-art-roman-revealed.html  shared technical article
--
https://dx.doi.org/10.1038/s41598-023-38655-z <-- shared paper
--
#water #drinkingwater #waterresources #wateruse #watermanagement #waterindustry #watersecurity #watersupply #waterquality #hydrology #ancienthistory #ancientrome #archeaology #Romans #archaeology #infrastructure #infrastructuremanagement #history #lessonslearnt #aqueduct #Divona #France #socioeconomic #geoarchaeology #limescale #cleaning #maintainence #carbonate

The Art Of Roman Water Management Revealed
--
https://phys.org/news/2023-08-art-roman-revealed.html  shared technical article
--
https://dx.doi.org/10.1038/s41598-023-38655-z <-- shared paper
--
#water #drinkingwater #waterresources #wateruse #watermanagement #waterindustry #watersecurity #watersupply #waterquality #hydrology #ancienthistory #ancientrome #archeaology #Romans #archaeology #infrastructure #infrastructuremanagement #history #lessonslearnt #aqueduct #Divona #France #socioeconomic #geoarchaeology #limescale #cleaning #maintainence #carbonate

New work by @bach_lennart

The experiments show that anthropogenic #alkalinity can strongly reduce the generation of natural alkalinity, thereby reducing additionality. This is because the #anthropogenic alkalinity increases the calcium carbonate saturation state, which reduces the dissolution of calcium #carbonate from sand, a natural alkalinity source.

https://bg.copernicus.org/preprints/bg-2023-122/

I think that at this point we established the #Bahamas is an anomaly - can we stop use it as a benchmark to explain #carbonate depositional environments and #diagenesis?

"we propose that alternative processes—such as porewater production of authigenic carbonates—may have represented a major carbonate sink throughout the Precambrian. Our results also suggest that the rise of the skeletal carbonate factory decreased seawater carbonate saturation states."
https://www.nature.com/articles/s41586-022-05654-5#:~:text=we%20propose%20that%20alternative%20processes%E2%80%94such%20as%20porewater%20production%20of%20authigenic%20carbonates%E2%80%94may%20have%20represented%20a%20major%20carbonate%20sink%20throughout%20the%20Precambrian.%20Our%20results%20also%20suggest%20that%20the%20rise%20of%20the%20skeletal%20carbonate%20factory%20decreased%20seawater%20carbonate%20saturation%20states.

#ocean #carbonSink #carbonate #carbonCycle #environment

Does making #seashells 🐚 in seawater to draw down atmospheric CO₂ sound like a good #climate solution to you?

Then you’re the target audience of this blog from @mtyka explaining how precipitation of calcium #carbonate to make shells actually releases CO₂.

http://mtyka.github.io/climate/2021/07/01/calcium-carbonate.html