#weathering — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #weathering, aggregated by home.social.
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Rock Weathering Can Counteract River CO2 Emissions Induced By Permafrost Thaw
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https://doi.org/10.1038/s41586-026-10664-8 <-- shared paper
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H/T @aaron Bufe
“[The researchers] measured carbon emissions and water chemistry in 50 headwater rivers draining 780,000 km² of the Tibetan Plateau.
The rivers flow in landscapes underlain by continuous permafrost and landscapes in which the permafrost has retreated since the last glacial maximum. They collect[ed] organic carbon from soils and dissolved inorganic carbon that is fixed by rock-weathering.
Where the permafrost cover is continuous, rivers emit CO2 from degrading (permafrost) soil carbon. Weathering reactions in these catchments are relatively slow.
In landscapes with (almost) no permafrost, carbon fluxes from weathering are faster than CO2 emissions from rivers.
Thus, as permafrost landscapes transition to landscapes without permafrost cover, chemical weathering reactions may play an ever more important role in riverine carbon cycling.
Interestingly, weathering can affect the carbon cycle in different ways. Where sulfide minerals are present, weathering reactions can emit CO2. Where silicate minerals dominate, weathering draws down CO2 from the atmosphere…”
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“Climate-induced permafrost thaw unlocks large stores of organic carbon that are mineralized and emitted as carbon dioxide (CO2) from rivers to the atmosphere. Concurrently, warming and permafrost thaw can increase mineral weathering rates, thus affecting the release and sequestration of inorganic carbon. Yet how these biological and geological carbon cycles interact and jointly affect CO2 dynamics (emission compared with drawdown) in permafrost rivers remains unknown. Here [they] combine[d] CO2 emissions, organic and inorganic solute concentrations, dual carbon isotopes (δ13C–Δ14C) and geochemical modelling to infer how permafrost thaw may affect river biogeochemistry over decades to centuries across the Qinghai–Tibet Plateau. Leveraging a gradient of thermal permafrost degradation, we find that river CO2 emissions decline, whereas solute fluxes from rock weathering increase with decreasing permafrost cover. Across this region, net CO2 drawdown fluxes from rock weathering are about 35% of river CO2 emissions, varying from around 15% in catchments with continuous permafrost to more than 100% in catchments with discontinuous or isolated permafrost. Thus, carbon fluxes from chemical weathering may become increasingly important with ongoing permafrost thaw, potentially even outpacing river CO2 emissions. [Their] findings disentangle the interplay between biological and geological carbon fluxes that are important for the cryosphere and the global carbon cycle…”
#permafrost #melting #thaw #climatechange #warming #Tibet #TibetanPlateau #Qinghai #water #hydrology #carbonemissions #CO2 #emissions #waterchemistry #waterquality #cryosphere #sediment #sedimentation #weathering #rock #carbon #river #riverine #carboncyling #geochemistry #biology #geology #soil -
Rock Weathering Can Counteract River CO2 Emissions Induced By Permafrost Thaw
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https://doi.org/10.1038/s41586-026-10664-8 <-- shared paper
--
H/T @aaron Bufe
“[The researchers] measured carbon emissions and water chemistry in 50 headwater rivers draining 780,000 km² of the Tibetan Plateau.
The rivers flow in landscapes underlain by continuous permafrost and landscapes in which the permafrost has retreated since the last glacial maximum. They collect[ed] organic carbon from soils and dissolved inorganic carbon that is fixed by rock-weathering.
Where the permafrost cover is continuous, rivers emit CO2 from degrading (permafrost) soil carbon. Weathering reactions in these catchments are relatively slow.
In landscapes with (almost) no permafrost, carbon fluxes from weathering are faster than CO2 emissions from rivers.
Thus, as permafrost landscapes transition to landscapes without permafrost cover, chemical weathering reactions may play an ever more important role in riverine carbon cycling.
Interestingly, weathering can affect the carbon cycle in different ways. Where sulfide minerals are present, weathering reactions can emit CO2. Where silicate minerals dominate, weathering draws down CO2 from the atmosphere…”
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“Climate-induced permafrost thaw unlocks large stores of organic carbon that are mineralized and emitted as carbon dioxide (CO2) from rivers to the atmosphere. Concurrently, warming and permafrost thaw can increase mineral weathering rates, thus affecting the release and sequestration of inorganic carbon. Yet how these biological and geological carbon cycles interact and jointly affect CO2 dynamics (emission compared with drawdown) in permafrost rivers remains unknown. Here [they] combine[d] CO2 emissions, organic and inorganic solute concentrations, dual carbon isotopes (δ13C–Δ14C) and geochemical modelling to infer how permafrost thaw may affect river biogeochemistry over decades to centuries across the Qinghai–Tibet Plateau. Leveraging a gradient of thermal permafrost degradation, we find that river CO2 emissions decline, whereas solute fluxes from rock weathering increase with decreasing permafrost cover. Across this region, net CO2 drawdown fluxes from rock weathering are about 35% of river CO2 emissions, varying from around 15% in catchments with continuous permafrost to more than 100% in catchments with discontinuous or isolated permafrost. Thus, carbon fluxes from chemical weathering may become increasingly important with ongoing permafrost thaw, potentially even outpacing river CO2 emissions. [Their] findings disentangle the interplay between biological and geological carbon fluxes that are important for the cryosphere and the global carbon cycle…”
#permafrost #melting #thaw #climatechange #warming #Tibet #TibetanPlateau #Qinghai #water #hydrology #carbonemissions #CO2 #emissions #waterchemistry #waterquality #cryosphere #sediment #sedimentation #weathering #rock #carbon #river #riverine #carboncyling #geochemistry #biology #geology #soil -
#WeekendReading: Yang et al. on the strange decupling of Li isotopes (a weathering proxy overall) and uplift-driven weathering over the last few million years, despite the Himalaya keep doing its thing.
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#WeekendReading: Yang et al. on the strange decupling of Li isotopes (a weathering proxy overall) and uplift-driven weathering over the last few million years, despite the Himalaya keep doing its thing.
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creates semantic nodes and clusters #WEATHERING #WITH #YOU advanced-search.aepiot.ro/advanced-sea... #PHYLLOMELIA headlines-world.com/advanced-sea... AÉPIOT: INDEPENDENT SEMANTIC WEB 4.0 INFRASTRUCTURE (EST. 2009): allgraph.ro
MultiSearch Tag Explorer -
The Lance From "Dragonslayer" - Dub'ya Makes
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The Lance From "Dragonslayer" - Dub'ya Makes
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Mein Schrottplatzbagger bekommt gerade die nötige Patina.
#alterung #weathering #patina #rost #1zu87 #modellauto -
„Weathered Facade“ (2015)
Photo ©️ Dietmar Bachmann
📍Rouen, France#FensterFreitag #WindowFriday #architecture #windows #facades #Decay #Weathering #wallpainting #lettering #texture #photography #urban #nikon #nikond810 #contemporaryart #rouen #France #architektur #fenster #fassaden #Verfall #verwitterung #wandmalerei #beschriftung #textur #fineart #fotografie #frankreich
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„Weathered Facade“ (2015)
Photo ©️ Dietmar Bachmann
📍Rouen, France#FensterFreitag #WindowFriday #architecture #windows #facades #Decay #Weathering #wallpainting #lettering #texture #photography #urban #nikon #nikond810 #contemporaryart #rouen #France #architektur #fenster #fassaden #Verfall #verwitterung #wandmalerei #beschriftung #textur #fineart #fotografie #frankreich
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Hummel pin washed, cleaned up, then chipped and after that again dirtified wit different brown oils like fresh and old rust and just "mud", and all gently blended around. So much fun.
When all that had dried up, I matt varnished the whole model. Tomorrow I'll use some mud pigments and a graphite pen for final highligts and call the Bumblebee done.
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Hummel pin washed, cleaned up, then chipped and after that again dirtified wit different brown oils like fresh and old rust and just "mud", and all gently blended around. So much fun.
When all that had dried up, I matt varnished the whole model. Tomorrow I'll use some mud pigments and a graphite pen for final highligts and call the Bumblebee done.
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#WeekendReading: Ouyang et al. on the Phanerozoic onset of large-scale continental #weathering. It does lean on K/Al, which I am having some issues with, but a good amount of other proxies show up as well.
Link: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL117072
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#WeekendReading: Ouyang et al. on the Phanerozoic onset of large-scale continental #weathering. It does lean on K/Al, which I am having some issues with, but a good amount of other proxies show up as well.
Link: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL117072
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Climatic And Anthropogenic Controls On Late Holocene Sediment Transport To The Gulf Of Mexico By The Mississippi River
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https://doi.org/10.1016/j.earscirev.2026.105401 <-- shared paper
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#water #hydrology #hydrography #humanimpacts #human #settlement #anthropogenic #levees #engineering #spatialanalysis #spatialtemporal #erosion #weathering #Mississippi #River #Sediment #Provenance #Zircon #grainsize #alluvial #alluvium #hydrogeomorphology #headwater #coast #coastal #delta #geology #Holocene #geochemistry #Sr #Nd #isotope #Strontium #Neodymium #detrital #climate #GulfofMexico -
Climatic And Anthropogenic Controls On Late Holocene Sediment Transport To The Gulf Of Mexico By The Mississippi River
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https://doi.org/10.1016/j.earscirev.2026.105401 <-- shared paper
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#water #hydrology #hydrography #humanimpacts #human #settlement #anthropogenic #levees #engineering #spatialanalysis #spatialtemporal #erosion #weathering #Mississippi #River #Sediment #Provenance #Zircon #grainsize #alluvial #alluvium #hydrogeomorphology #headwater #coast #coastal #delta #geology #Holocene #geochemistry #Sr #Nd #isotope #Strontium #Neodymium #detrital #climate #GulfofMexico -
Aktuell versuche ich mich ja im #Altern bzw #Weathering von #Modelleisenbahn Fahrzeugen
Hier eine Kleine Auswahl:
Zwei Waggons in unterschiedlichen Bearbeitungsstufen -
Aktuell versuche ich mich ja im #Altern bzw #Weathering von #Modelleisenbahn Fahrzeugen
Hier eine Kleine Auswahl:
Zwei Waggons in unterschiedlichen Bearbeitungsstufen -
Meine verhunzte Lok ist wieder schön 🥰
Der Museumsbahnverein, der sie den ÖBB abkaufen möchte, und hat aber noch keinen Spender gefunden, der dieses Roststück wieder aufarbeiten lässt. -
Meine verhunzte Lok ist wieder schön 🥰
Der Museumsbahnverein, der sie den ÖBB abkaufen möchte, und hat aber noch keinen Spender gefunden, der dieses Roststück wieder aufarbeiten lässt. -
Laterite (Pedology 🟤)
Laterite is a soil type rich in iron and aluminum that often forms in hot, wet areas; most such soil is found in the tropics. Nearly all laterites are of rusty-red coloration due to high iron oxide content. Laterite soils develop by intensive and prolonged weathering of the underlying parent rock, usually under conditions of high temperatures and heavy rainfall...
https://en.wikipedia.org/wiki/Laterite
#Laterite #Pedology #Regolith #Weathering #OreDeposits #Sedimentology
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Laterite (Pedology 🟤)
Laterite is a soil type rich in iron and aluminum that often forms in hot, wet areas; most such soil is found in the tropics. Nearly all laterites are of rusty-red coloration due to high iron oxide content. Laterite soils develop by intensive and prolonged weathering of the underlying parent rock, usually under conditions of high temperatures and heavy rainfall...
https://en.wikipedia.org/wiki/Laterite
#Laterite #Pedology #Regolith #Weathering #OreDeposits #Sedimentology
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Schrottplatz nochmals kurz gespottet.
Euch einen schönen Sonntagabend!#modellbahnanlage #anlagengestaltung #modellbau #weathering #autofriedhof
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Schrottplatz nochmals kurz gespottet.
Euch einen schönen Sonntagabend!#modellbahnanlage #anlagengestaltung #modellbau #weathering #autofriedhof
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#Joy #Complexity #Richness #Rust #Paint #Corrosion #Decay #Beauty #Moss #Nature #Weathering
As we countdown the last few days of the year, please take a moment to consider how beautiful, rich and detailed the world is.
In a video game this fence might well be pristine, or maybe rust and moss would just be drawn on the surface but out in the world, each patch of green moss is fully 3D and, if only we looked, filled with tiny insect, and even tinier, microbial life.
On the other side of the park is a similar railing, but it has the remains of three or four layers of different colour paint, peeling and bubbling, and little moss, but much more lichen.
Every exposed surface in the city has some measure of similar complexity, and this is without even entering the park, or digging into the ground.
Life is wonderful, and we, you and me, being here to see it is a miracle, and as a total non-believer I use that word deliberately, if carefully.
May your 2026 be filled with childlike wonder.
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#Joy #Complexity #Richness #Rust #Paint #Corrosion #Decay #Beauty #Moss #Nature #Weathering
As we countdown the last few days of the year, please take a moment to consider how beautiful, rich and detailed the world is.
In a video game this fence might well be pristine, or maybe rust and moss would just be drawn on the surface but out in the world, each patch of green moss is fully 3D and, if only we looked, filled with tiny insect, and even tinier, microbial life.
On the other side of the park is a similar railing, but it has the remains of three or four layers of different colour paint, peeling and bubbling, and little moss, but much more lichen.
Every exposed surface in the city has some measure of similar complexity, and this is without even entering the park, or digging into the ground.
Life is wonderful, and we, you and me, being here to see it is a miracle, and as a total non-believer I use that word deliberately, if carefully.
May your 2026 be filled with childlike wonder.
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#Chitonida (#Mollusca) exist since the #Cambrian. Bodies are covered with #calcareous #plates, flexibly connected. Most feed on vegetation cover. The #CambrianExplosion made based i.a. on #oxygen significant leaps in #animalevolution. Y. Zhang et al. (2025) assume a change in Earth's orbit altering #solarradiation, leading to land #weathering and #nutrients flow to the sea. Algae thrived and produced much oxygen.
© #StefanFWirth 2025Ref
https://doi.org/10.1029/2025GL118689#Pics
#AIassisted, © S.F.Wirth -
#Chitonida (#Mollusca) exist since the #Cambrian. Bodies are covered with #calcareous #plates, flexibly connected. Most feed on vegetation cover. The #CambrianExplosion made based i.a. on #oxygen significant leaps in #animalevolution. Y. Zhang et al. (2025) assume a change in Earth's orbit altering #solarradiation, leading to land #weathering and #nutrients flow to the sea. Algae thrived and produced much oxygen.
© #StefanFWirth 2025Ref
https://doi.org/10.1029/2025GL118689#Pics
#AIassisted, © S.F.Wirth -
#DidYouKnow:Enhanced #Weathering is a process that aims to accelerate the natural weathering.
It also removes carbon dioxide (CO2) from the atmosphere, permanently storing it in solid carbonate minerals or ocean alkalinity. The latter also slows ocean acidification.
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#DidYouKnow:Enhanced #Weathering is a process that aims to accelerate the natural weathering.
It also removes carbon dioxide (CO2) from the atmosphere, permanently storing it in solid carbonate minerals or ocean alkalinity. The latter also slows ocean acidification.
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🤗🌴🥥🌴🥥🌴🥥🌴🥥🩶🤎🩶🤎🩶🤎🌴🥥🌴🥥🌴🥥🌴🥥🤗*"When a storm blows!*you must stand firm!*For it is not trying to knock you down!*it is really trying to teach you to be strong!"🤗🌴🥥🌴🥥🌴🥥🌴🥥🩶🤎🩶🤎🩶🤎🩶🤎🌴🥥🌴🥥🌴🥥🤗
~ Joseph M. Marshall III
#Weathering #Storm #Life #GOD #Experience #Learn #Personal #Growth
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🤗🫧🫧🫧💦🌊💦🌊🥽🤿🥽🤿💙💜💜💜🤍🩵💚🥽🤿🥽🤿🥽🤿💦🌊💦🌊💦🌊🫧🫧🫧🤗*"When a storm blows!*you must stand firm!*For it is not trying to knock you down!*it is really trying to teach you to be strong!"🤗🫧🫧🫧💦🌊💦🌊💦🌊🥽🤿🥽🤿🥽🤿💙💜💜💜🤍🩵💚🥽🤿🥽🤿🥽🤿💦🌊💦🌊💦🌊🫧🫧🫧🤗
~ Joseph M. Marshall III
#Weathering #Storm #Life #GOD #Experience #Learn #Personal #Growth
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*~*"When a storm blows!*you must stand firm!*For it is not trying to knock you down!*it is really trying to teach you to be strong!"*~*
~ Joseph M. Marshall III
#Weathering #Storm #Life #GOD #Experience #Learn #Personal #Growth
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🤗🥽🤿🥽🤿🌊💦🌊💦🌊💦💛❤️🧡💙💜🤍🩵💚💚💚🩳🩲🩱👙🌊💦🌊💦🌊💦🌊🥽🤿🥽🤿🥽🤿🤗*"Sometimes a storm in your life is what will blow you to the place you are longing to be!"🤗🥽🤿🥽🤿🥽🤿🌊💦🌊💦🌊💦💙💜🤍🩵💚💛❤️🧡🩳🩲🩱👙🌊💦🌊💦🥽🤿🥽🤿🥽🤿🤗
~ Beth Moore
#Weathering #Storm #Life #GOD #Experience #Learn #Personal #Growth
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🤗🌊💦🌊💦🌊💦⭕⭕⭕💙💜🤍🩵💚💚💚🌳🌲🌳🩳🩲🩱👙🌊💦🌊💦🌊💦🌊🤗*"Sometimes a storm in your life is what will blow you to the place you are longing to be!"🤗🌊💦🌊💦🌊💦⭕⭕⭕💙💜🤍🩵💚🌲🌳🌳🩳🩲🩱👙🌊💦🌊💦🤗
~ Beth Moore
#Weathering #Storm #Life #GOD #Experience #Learn #Personal #Growth
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*~*"Sometimes a storm in your life is what will blow you to the place you are longing to be!"*~*
~ Beth Moore
#Weathering #Storm #Life #GOD #Experience #Learn #Personal #Growth
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🤗🛖🛖🛖🌊🌊🌊⛰️⛰️⛰️💮🌸🌺🏵️🪷💛🩵💙💜🤍💚❤️🧡🩶💛🩵💙💜🤍💚❤️🧡🩶💮🌸🌺🏵️🪷🌊⛰️🌊⛰️🌊⛰️🛖🛖🛖🤗*"*& once the storm is over!*you won’t remember how you made it through!*how you managed to survive!*You won’t even be sure!*whether the storm is really over!*But one thing is certain!*When you come out of the storm!*you won’t be the same person who walked in!*That’s what this storm’s all about!"🤗🛖🛖🛖🌊⛰️🌊⛰️🌊⛰️💮🌸🌺🏵️🪷💛🩵💙💜🤍💚❤️🧡🩶💛🩵💙💜🤍💚❤️🧡🩶💮🌸🌺🏵️🪷🌊⛰️🌊⛰️🌊⛰️🌊⛰️🛖🛖🛖🤗
~ Haruki Murakami
#Weathering #Storm #Life #GOD #Experience #Learn #Personal #Growth
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💛🩵💙💜🤍💚❤️🧡🩶💛🩵💙💜🤍💚❤️🧡🩶*"*& once the storm is over!*you won’t remember how you made it through!*how you managed to survive!*You won’t even be sure!*whether the storm is really over!*But one thing is certain!*When you come out of the storm!*you won’t be the same person who walked in!*That’s what this storm’s all about!"💛🩵💙💜🤍💚❤️🧡🩶💛🩵💙💜🤍💚❤️🧡🩶
~ Haruki Murakami
#Weathering #Storm #Life #GOD #Experience #Learn #Personal #Growth
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Ein Wiking Käfer hinter der Pfütze. Auf dem Güterumschlagareal. Im Hintergrund verschwommen seht ihr den Portalkran Made in GDR. Also Westkäfer und Ostkran in perfekter Harmonie.
#modellbahn #modelleisenbahn #modellbau #modellauto #wiking #weathering #gestaltung #dioramenbau -
And then one of the cats knocked the damn thing to the floor. Nose wheel broke and the repair looks like it was AI-generated 😅
I applied a yellow-grey-buff dot filtering on the top, used some Industrial Earth on the bottom and satin varnished the thing. Too shiny, will do a matt one later. And after that I'll drybrush some black on the Vulcan port, maybe the vents too.
#ScaleModeling #WIP #OilPaints #weathering #Decepticon #Seeker
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Instead of a finely controlled and elegant pin wash I covered the whole F-15E model in a dynamic thinness wash of Abteilung's Sepia. After a bit of time I cleaned it mostly up. There's still more to do, and I'll use some dot filtering and/or buff later on some bits, and a bit of Industrial Earth on the underside. I think 😄
The drop tank gluing sucks badly, and the left landing gear came off. This fiddliness aggravates me to no end.
#WIP #ScaleModeling #OilPaints #weathering #Decepticon #Seeker
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In the absence of a #ZeroEmission grid,
I'm fairly sure energy use in the production process of this material would negate most of (if not all) the #CarbonCapture potential. But it does offer a demonstration experiment on #weathering feedback one can do with #students on a reasonable time scale... Even if I don't see a significant boon here for #ClimateChange mitigation.
https://www.nature.com/articles/s41586-024-08499-2 -
Cellular weathering in beach rocks. Playa Chica, Tarifa, Spain.
#geology #weathering