New paper live from HybridMind42.

“The Limit-State Regime: Latency-Limited Persistence in the Thorium-232 → Lead-208 Decay Series”

This paper introduces the Resolution–Transport Ratio (R):

R = τ_transport / τ_resolution

The core result is simple:

Identical boundaries can behave as effectively open or closed depending on whether transport or stochastic resolution completes first.

Using the Thoron vs Radon-222 comparison, the paper proposes that effective permeability is governed not solely by material structure, but by competing timescales.

This establishes the “limit-state regime” of the Boundary-Filtered Persistence Framework (BFPF).

Persistence becomes a measurable competition between clocks.

https://open.substack.com/pub/hybridmind42/p/hybridmind42-boundary-dynamics-series-fc6?utm_source=share&utm_medium=android&r=75c2ac

#BoundaryDynamics #BFPF #Thorium232 #Radon222 #Geochemistry #SystemsScience #Persistence

🦈🔦 Researchers at the University of #Melbourne developed a method using laser-induced mass #spectrometry to analyze #elements within shark vertebrae.

The technique allows for more accurate age estimation and environmental tracking than traditional visual growth ring analysis.

👉 https://phys.org/news/2026-05-scientists-lasers-age-sharks.html

#sharks #marinebiology #science #lasers #technology #tech #geochemistry #ocean #research #conservation #ecology #data #discovery

Du nouveau chez Minetosh online (https://www.minetoshsoft.com):

La quatrième partie d'« AmphiCalc-1 » pour le calcul et la classification des amphiboles est désormais en ligne : « Amp15KC » pour le calcul des compositions d'amphiboles sur la base de 15 cations sans potassium et calcium aussi en position C. Ce calcul est particulièrement adapté aux amphiboles sodiques.

AmphiCalc-1 calcule automatiquement à partir d'analyses par microsonde les oxydes, les cations, la composition chimique, la répartition Fe²⁺ et Fe³⁺, ainsi que d'autres paramètres des amphiboles. Les résultats peuvent être téléchargés sous forme de fichier csv. Les diagrammes suivants pour la classification des amphiboles sont créés automatiquement et peuvent être téléchargés sous forme de fichiers svg : diagramme de Leake, diagramme ACF, diagramme AFM.

#Minetosh #geologie #geology #géologie #amphibol #amphibole #LeakeDiagramm, #AcfDiagramm, #AfmDiagramm #LeakeDiagram, #AcfDiagram, #AfmDiagram #LeakeDiagramme, #AcfDiagramme, #AfmDiagramme #leakediagram, #acfdiagram, #afmdiagram #geochemie #geochemistry #géochimie #mineralogie #mineralogy #metamorphose #metamorphism #métamorphose #gesteine #rocks #roches #français

News from Minetosh online (https://www.minetoshsoft.com):

The fourth part of “AmphiCalc-1” for calculating and classifying amphiboles is now online: “Amp15KC” for calculating amphibole compositions based on 15 cations without potassium; calcium also on position C. This calculation is particularly suitable for sodium amphiboles.

AmphiCalc-1 automatically calculates the oxides, cations, formula occupancy, Fe²⁺ and Fe³⁺ distribution, and other parameters of amphiboles from microprobe analyses. The results can be downloaded as a csv file. The following diagrams for classifying amphiboles are generated automatically and can be downloaded as svg files: Leake diagram, ACF diagram, AFM diagram.

#Minetosh #geologie #geology #géologie #amphibol #amphibole #LeakeDiagramm, #AcfDiagramm, #AfmDiagramm #LeakeDiagram, #AcfDiagram, #AfmDiagram #LeakeDiagramme, #AcfDiagramme, #AfmDiagramme #leakediagram, #acfdiagram, #afmdiagram #geochemie #geochemistry #géochimie #mineralogie #mineralogy #metamorphose #metamorphism #métamorphose #gesteine #rocks #roches #english

Neues von Minetosh online (https://www.minetoshsoft.com):

Der vierte Teil von "AmphiCalc-1" zur Berechnung und Klassifizierung von Amphibolen ist nun online: "Amp15KC" zur Berechnung von Amphibol-Zusammensetzungen auf der Grundlage von 15 Kationen ohne Kalium; mit Calcium auch auf Position C. Diese Berechnung ist besonders für Na-Amphibole geeignet.

AmphiCalc-1 berechnet aus Mikrosondenanalysen automatisch die Oxide, die Kationen, die Formelbesetzung, die Fe²⁺- und Fe³⁺-Verteilung, sowie weitere Parameter von Amphibolen. Die Ergebnisse lassen sich als csv-Datei herunterladen. Folgende Diagramme zur Klassifizierung der Amphibole werden automatisch erstellt und können als svg-Dateien heruntergeladen werden: Leake-Diagramm, ACF-Diagramm, AFM-Diagramm.

#Minetosh #geologie #geology #géologie #amphibol #amphibole #LeakeDiagramm, #AcfDiagramm, #AfmDiagramm #LeakeDiagram, #AcfDiagram, #AfmDiagram #LeakeDiagramme, #AcfDiagramme, #AfmDiagramme #leakediagram, #acfdiagram, #afmdiagram #geochemie #geochemistry #géochimie #mineralogie #mineralogy #metamorphose #metamorphism #métamorphose #gesteine #rocks #roches

May the 4th be with you! 🌍✨

In a galaxy not so far away… scientists are fighting for open data, open access, and reproducible research.

#OpenScience #OpenAccess #EarthSciences #Geochemistry #DiamondOA #MayThe4thBeWithYou #StarWarsDay

💁🏻‍♀️ ICYMI: 🌋🌊 Filmmaker Devon Massyn documents the raw #physics of a phreatomagmatic #eruption at the #SolomonIslands' #Kavachi submarine #volcano.

When seawater makes contact with 1,200ºC (2,190°F) basaltic #lava, it flashes into steam and expands 1,600 times its original volume. This creates violent #underwater explosions in an #ecosystem that surprisingly supports hammerhead and silky #sharks.

👉 Learn more: https://seethis.tv/post/kavachi-underwater-volcano-seawater-magma-devon-massyn-video?utm_source=mastodon&utm_medium=social&utm_campaign=new_content&utm_content=kavachi-underwater-volcano-seawater-magma-devon-massyn-video

#earth #science #ecosystem #gas #geochemistry #geography #geology #magma #marinebiology #nature #ocean #volcanoes #volcanology #water #tksst #video