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Institute of Geological Sciences, Uni Bern

@geologyunibern.bsky.social
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Official account of the IfG @unibern.bsky.social. We promote research and teaching activities of our dynamic institute!

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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 11/09/2026
📢 Paper alert! Alfons Berger, Martin Wille, and colleagues have measured Sr isotopes in calcite from deformed metamarls in the Glarus Alps and found that matrix-vein similarities reveal local mass transfer and fluid-rock interaction during vein formation. Read more⬇️ doi.org/10.1007/s005...
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 18/08/2026
📢 Paper alert! Martin Wille and others have measured Mo isotopes in Landsort Deep (Baltic Sea) sediments and found that hypoxic episodes are distinctly isotopically lighter vs. weakly sulfidic intervals, this all driven by Mn oxide shuttling Read more⬇️ www.sciencedirect.com/science/arti...
sciencedirect.com
Impact of strong redox shifts and manganese cycling on sedimentary molybdenum isotopes in stratified hypoxic/euxinic basins
Molybdenum concentrations and stable isotope compositions have been extensively applied to marine sediments for palaeo-redox reconstruction. While the…
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 04/08/2026
📢 Paper alert! New study by Qasid Ahmad et al. explores elemental cycling in Tonga. Ba isotopes show that subducting oceanic crust isn't the main source of Barium, but most of it actually traces back to subducting sediments via a two-stage release mechanism. Read more⬇️ buff.ly/BVLjqBl
sciencedirect.com
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 28/07/2026
🚨Paper alert! A new study by Jin Ma et al. explores data from a recent deep-drilling campaign in northern Switzerland. Using a one-dimensional transport model, they modeled and reproduced high-resolution profiles of four natural tracers across the boreholes. Read more 10.1016/j.apgeochem.2025.106654
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 27/05/2026
📢 Paper alert! Recent work by Neal Mathes et al. refines the extent of Middle Pleistocene glaciations in the Jura Mountains. ¹⁰Be/²⁶Al dating and sediment tracing show that sediments in the Grottes aux Fées were transported from the Valaisian Alps ca. 400 ka (MIS 12). Read more ⬇️ doi.org/q8j7
doi.org
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 21/05/2026
🚨 Paper alert!🚨 In a recent paper Chantal Schmidt et al. combine geomorphic mapping with cosmogenic measurements to quantify erosion within Gürbe, a pre-Alpine catchment. Read more⬇️
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Quantifying erosion in a pre-Alpine catchment at high resolution with concentrations of cosmogenic 10Be, 26Al, and 14C
Abstract. Quantifying erosion across spatial and temporal scales is essential for assessing different controlling mechanisms and their contribution to long-term sediment production. However, the…
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 29/04/2026
📢 Paper alert! Recent work by Hoda Moradi, published in Geochimica et Cosmochimica Acta, highlights the key role of basaluminite in controlling Al(III) behaviour in acidic environments. See the link below to read more ⬇️ www.sciencedirect.com/science/arti...
sciencedirect.com
The importance of basaluminite formation on controlling the fate of Al(III) in aqueous solutions at pH 4–5
The formation of secondary Al-hydroxysulfates is environmentally important as they regulate aluminum concentrations in acidic environments and may ser…
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 10/04/2026
🎓Congrats to Dr. Anna Zappatini, who successfully defended her #PhD thesis “From fireball monitoring to meteorite analysis: recovery and study of fresh falls”. Wishing you all the best in the future!
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 07/04/2026
📢 Paper alert! Exciting new research led by Ignatius Argadestya here at the Institute of Geological Sciences investigates high-resolution orbital data from Mars, identifying evidence for historic high water levels within Valles Marineris. Read more below! ⬇️ www.nature.com/articles/s44...
nature.com
Scarp-fronted deposits record the highest water level in Mars’ Valles Marineris - npj Space Exploration
npj Space Exploration - Scarp-fronted deposits record the highest water level in Mars’ Valles Marineris
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 24/03/2026
📢 Paper alert! Anja Rubin et al. used surface exposure dating and runout modelling to elucidate the triggering mechanisms of the Sierre landslide, providing insights into landscape dynamics during the transition to the Holocene. Read more at ⬇️ sjg.pensoft.net/article/1803...
sjg.pensoft.net
The Sierre landslide: chronology, dynamics, and insights into Alpine post-glacial instabilities
Today, natural disasters in alpine valleys pose a continuous threat to urban areas and infrastructure. Investigating past mass movements and assessing their return periods enhances our ability to pred...
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 17/03/2026
📢Paper alert! Catarina Dieleman et al. used cosmogenic 10Be and 26Al from glaciofluvial gravels, finding that Alpine glaciers and meltwater carved the Swiss foreland twice as fast during a major climate shift 1 Ma ago than they do today Read more at ⬇️ www.sciencedirect.com/science/arti...
sciencedirect.com
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 12/03/2026
📢Paper alert! Institute of Geology researcher Sebastian Schaller has explored the use of unsupervised machine learning to build stratigraphic models from standard petrophysical and geochemical wireline logging data. oap.unige.ch/journals/sdk...
oap.unige.ch
Data-driven lithofacies prediction of unconsolidated sediments from wireline logs | Sedimentologika
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 25/02/2026
📢Paper alert! Adrianus Damanik et al. detail climate-driven oxygenation changes in the water column of Lake Towuti, Indonesia 🇮🇩, over the last ~30ka BP through sedimentary Mo isotope compositions ⚛️ Read more at⬇️ www.sciencedirect.com/science/arti...
sciencedirect.com
Sedimentary Mo isotope variability reflects climate-driven water column oxygenation changes in ferruginous Lake Towuti, Indonesia over the last ∼30 ka BP
Previous studies have shown the utility of Molybdenum (Mo) concentrations and isotopic compositions as sensitive recorders for changes in redox condit…
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 17/02/2026
📢Paper alert! Catharina Dieleman et al. explore the formation and evolution of a well-preserved polygenetic cone Frébouge in the Italian Alps, using remote mapping, ¹⁰Be surface exposure dating, and modelling.🏔️🔍️ Read more at⬇️
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Unravelling the evolution of the Frébouge polygenetic cone in Val Ferret (Mont Blanc Massif)
Proglacial settings in the Alps are typically polygenetic, often characterized by a complex and discontinuous interplay between glacial, fluvial and gravitational processes. These processes yield…
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 12/02/2026
📢Paper alert! Through a series of experiments Natalia Nevskaya et al. investigate the rheology of polymineralic fine-grained shear zones in the Earth’s middle to lower crust.🌋🌍👩‍🔬 Read more at⬇️
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Dissolution–precipitation creep in polymineralic granitoid shear zones in experiments – Part 2: Rheological parameters
Abstract. The transition from strong to weak mechanical behavior in the Earth's continental middle crust is always caused by an initiation of viscous deformation. Microstructural evidence from field…
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 04/02/2026
📢 New paper by Thorsten A. Markmann & Pierre Lanari. A coupled mechanical petrological model shows how dehydration reactions drive episodic fluid release, permeability pulses, and brittle failure in subduction zones. Open-source code: ThorPT Link: onlinelibrary.wiley.com/doi/pdf/10.1...
onlinelibrary.wiley.com
Interplay Between Mechanical and Petrochemical Models on the Fluid Extraction From Subduction Zones
The breakdown of hydrous minerals during subduction results in a densification of the rocks, producing volume changes that can trigger fluid pressure fluctuations and hydrofracturing. These volume ch...
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 28/01/2026
📢 Paper alert! A recently published study by Philip Ingold investigates water flow dynamics in bottom ash landfills, combining multi-site monitoring with process-based modelling to disentangle matrix flow and preferential transport mechanisms. See below! ⬇️ www.sciencedirect.com/science/arti...
sciencedirect.com
Water flow dynamics in bottom ash landfills
To obtain a mechanistic understanding of material reactivity and transport properties of bottom ash landfill leachate, this study investigates hydrolo…
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 20/01/2026
📢 Paper alert! New research by Renee Tamblyn and others proposes that hydrated 💦 komatiites likely influenced Archean ocean–atmosphere chemistry ☁️ and the generation of early TTG continental crust 🌍 Find the link to the paper here to read more! ⬇️ doi.org/10.1016/j.li...
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 13/01/2026
📢 Paper alert! Research by Institute for Geology researcher Coralie Vesin investigates oceanic serpentinisation processes using high-resolution geochemical indicators from the Samail ophiolites (Oman). Find the link to the paper here to read more! ⬇️ www.sciencedirect.com/science/arti...
sciencedirect.com
Oceanic serpentinisation in the Samail ophiolites: evidence from trace elements and O and B isotopes
Oceanic serpentinisation represents a major link between the hydrosphere and the lithosphere, whereby aqueous fluids hydrothermally alter mantle rocks…
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 06/01/2026
📢Paper alert! In a recent study, Suzette Timmerman et al. demonstrate the importance of analysing the entirety of a 💎diamond inclusion, as the presence of fluid films can fractionate the isotopic composition of the mineral, and give eruption ages instead of formation ages ⏲️. 🔗
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The effect of inclusion-fluid fractionation on different isotopic systems used to date diamonds
Diamond formation ages are crucial in understanding carbon mobility and diamond growth/destruction processes in the mantle linked to large tectono-mag…
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 31/12/2025
🕛 As we approach to the end of this year, let's take a moment to remember some of the events our staff participated on: 💭 conferences, field excursions, outreach activities and social events. 🎆 We wish you a wonderful end of 2025, and all the best in your personal and academic projects for 2026!🎉🎇
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 30/12/2025
📢Paper alert! Bennet Schuster and colleagues developed a new workflow to automate clast-fabric analysis using 🖥️machine learning on X-ray computed tomography scanned drill-cores 🔗https://doi.org/10.1111/bor.70023
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 24/12/2025
✨🎄The Institute of Geological Sciences wishes you Happy Holidays! ❄️Thank you for being part of our community and all your contributions throughout the year.
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 23/12/2025
📢Paper alert! In their latest study, Piccoli et al. show how carbonates in ultramafic lithologies can efficiently return carbon to the deep mantle during subduction, in absence of external fluid infiltration. 🔗 doi.org/10.1186/s000...
doi.org
Carbon retention during subduction of ophicarbonate rocks from the Zermatt-Saas unit (Western Alps) - Swiss Journal of Geosciences
Serpentinite-hosted carbonate rocks (i.e., ophicarbonates) are an important rock type for the deep C cycle because they can occur either in the slab or in the mantle wedge. We present a case study of ...
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 19/12/2025
💬 We are closing this year's activities with two MSc. talks on the topic of geological hazards🏔️. Well done both of you! 👏
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 11/12/2025
Last weekend at SGM25, several ERCs were honored for their outstanding work: 🏅Paul Niggli Medal — Lisa Eberhard 🏅Best MSc Thesis (SGS) — Alessandro Del Re 🏅CHGeol Awards: BSc — Melanie Streit; MSc — Alexandre Liechti; PhD — Dr. Hoda Moradi 🏅Prix Schläfli — Dr. Simona Meiler Congratulations to all!👏
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 09/12/2025
Over the weekend, the University of Bern hosted the 23rd Swiss Geoscience Meeting together with the 7th Swiss Geologists’ Day.⚒️ About 1000 participants joined a program of workshops, plenary talks, and symposia.📝 Thank you to everyone who took part, and to all who made the event possible!🙏🏼🥳
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 02/12/2025
📢Paper alert! Pascal Kruttasch and Klaus Mezger use 53Mn-53Cr chronometry ⏰ to provide constraints on early protoplanetary disk evolution 🪐 click below to read more! ⬇️ www.science.org/doi/10.1126/...
science.org
Time of proto-Earth reservoir formation and volatile element depletion from 53Mn-53Cr chronometry
Reservoirs of proto-Earth and carbonaceous chondrites lost their volatile element budget in the first ~3 Ma of the Solar System.
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 24/11/2025
🎓Congrats to Dr. Nils Benjamin Gies, who successfully defended his #PhD thesis “H₂O incorporation into clinopyroxene and consequences for the deep water cycle” Wishing you all the best in the future!
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 19/11/2025
📢Paper alert! Institute member Nils B Gies (Andrea Giuliani et al.) investigate hydrogen zoning in olivine from kimberlite samples, giving insight into the distribution of H2O within the lithospheric mantle and kimberlite melts. More info⬇️ academic.oup.com/petrology/ar...
academic.oup.com
Hydrogen Zoning in Olivine from Kimberlites Based on Coupled FTIR and SIMS Analyses: Significance for H2O Distribution in the Lithospheric Mantle and H2O Concentrations in Kimberlite Melts
Abstract. Kimberlite melts are widely considered to be enriched in volatiles, both CO2 and H2O. Yet, estimated H2O concentrations in primitive kimberlites
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 13/11/2025
This summer, members of the Sedimentary Geochemistry group traveled to Lake Poso, in Sulawesi, Indonesia.🌏To collect sediment cores for a SPIRIT SNSF project with Indonesia’s National Research and Innovation Agency👩‍🔬 aiming to uncover past climate patterns, and environmental and geological changes.🌋🔍
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 12/11/2025
⚠️ Have you already registered for the Swiss Geoscience Meeting 2025? ⏱️ This Friday (November 14th) is the last day for registering online Registrations on-site are possible as well, but please bear in mind that an additional fee of 40 CHF will be charged. 🔗 Programme & registration: buff.ly/ixlAg2T
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 11/11/2025
📢 Paper alert! Sandro Truttmann et al. investigate how pre-existing fracture size distributions relate to earthquakes in the southwestern Swiss Alps🏔️ revealing depth-dependent differences in fracture reactivation.💥 More info⬇️
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The size distributions of fractures and earthquakes: implications for orogen-internal seismogenic deformation
Abstract. Pre-existing geological discontinuities such as faults and fractures represent structural and mechanical discontinuities in rocks which influence earthquake processes. As earthquakes occur…
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 21/10/2025
Advertisement for a German talk: Heute Abend gibt Prof. em. Larryn Diamond einen Vortrag im Rahmen des NGB-Jahresprograms "Tiefgründig" (buff.ly/6E8k2Ot): CO2-Sequestrierung im Untergrund - Eine Lösung für die Schweiz?
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 14/10/2025
📢 Paper alert! A new review article by Mazurek and colleagues delves into the different techniques for porewater 💧extraction from clayrocks, and their suitability to the posterior analyses and characterization of their physio-chemical properties. doi.org/10.1016/j.cl...
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 26/09/2025
📢 Paper alert! Sara Nerone and colleagues developed IntersecT 💻, a tool to statistically quantify isopleth thermobarometry, using the output files from Perple_X, improving the interpretation and allowing compositional uncertainties to be included in the models www.sciencedirect.com/science/arti...
sciencedirect.com
IntersecT: a Python script for quantitative isopleth thermobarometry of equilibrium and disequilibrium systems
Isopleth thermobarometry involves comparing compositional isopleths generated from forward thermodynamic models with the measured mineral compositions…
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 02/09/2025
📢 Paper alert! Nicolas Greber et al. measured Si isotopes in Archaean rocks to study land exposure on early Earth.🌋🌍 Their results show a sharp rise in granitoid values at 3.8 to 3.6 Ga, likely due to increased Si flux from emerging crust to oceans.🌊 Read more:
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Silicon isotopic signatures of granitoids support increased weathering of subaerial land 3.7 billion years ago - Communications Earth & Environment
Emergence of land and continental weathering feedbacks likely started around 3.8 to 3.6 billion years ago, according to silicon isotope analysis of Archean granitoids.
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 26/08/2025
📢 Paper alert! Weija Zhan et al. 2025 studied the role of sheet silicates in fault zones, by conducting hydrothermal ring shear experiments.👩‍🔬 They found that mica enrichment in granitoid faults can lead to weaker upper crust and stronger middle crusts. Read more:
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The effect of micas on the strength of experimental granitoid fault gouge
Sheet silicates play an important role in shaping crustal rheology and shear localization at shallow depths through their low strength. However, their…
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 07/08/2025
📢 Paper alert! Vasileios Mavromatis et al. investigated how sulfate (SO₄²⁻) impacts Mg isotope fractionation in low-Mg calcite 💧🪨 — with big implications for interpreting natural carbonate records. 👉 www.sciencedirect.com/science/arti... #Geochemistry #IsotopeGeochemistry #MgIsotopes #Carbonates
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 29/07/2025
📢 Paper alert! A multiproxy study from Alexandrine N’nanga et al. 2025 studied four lakes in Central Cameroon to investigate past environmental changes induced by climate variations and human impact. Read more:
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Lake sediments on the Adamawa Plateau (Central Cameroon) as archives of climate change and the Bantu impact during the last 4000 years BP - Journal of Paleolimnology
This study investigates Late Holocene environmental changes in Central Cameroon induced by the combined effects of climate and human impact. For this purpose, sediments from lakes Dang, Massote,…
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 24/07/2025
📢 Paper alert! Narendra Patel et al., using drone data, aimed to explain source-to-sink patterns of #coarse-grained #sediment transport in braided streams of the Indian #Himalaya 🏔️ . More info:
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Source-to-sink patterns of grain size along the Yamuna River in the Indian Himalaya
Material supply, water transport, and river engineering structures such as dams and barrages potentially disrupt and alter the downstream grain size p…
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 21/07/2025
📍 #Goldschmidt2025 Researchers from the #UniversityofBern attended this year’s Goldschmidt Conference, contributing to discussions on current developments in #geochemistry, presenting their work, and engaging with the #internationalscientificcommunity.
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 26/06/2025
📢 New tool for #geoscientists! Walters & Gies present MinPlotX—an #opensource program for mineral formula recalculation + compositional plotting. GUI for easy use, API for advanced users. Great for #microprobe data + large datasets. Open Access paper: doi.org/10.2478/mipo...
doi.org
MinPlotX: A powerful tool for formula recalculation,...
MinPlotX is an open-source software for mineral formula recalculation and compositional plotting providing an easy-to-use stand-alone graphical...
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 24/06/2025
📢 Paper alert! Liu et al. show ultra-fast #metamorphic reactions (8 days to <1 yr) during regional #metamorphism. Trace element #diffusion in garnet reveals melt-assisted corona growth at rates previously thought exclusive to contact metamorphism or lab settings. doi.org/10.1016/j.gc...
sciencedirect.com
Ultra-fast metamorphic reaction during regional metamorphism
Constraining the timescales of metamorphic processes is critical to understanding geodynamics on Earth. It is generally accepted that the rates of met…
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 04/06/2025
📢Paper alert! Vesin et al. use δ¹⁸O and trace element data from Erro-Tobbio serpentinites to reveal variable oceanic serpentinisation and dehydration pathways Their findings suggest internal fluid control with minimal external slab fluid input Read more: doi.org/10.1093/petr...
doi.org
Chemical and Isotopic Exchanges in Serpentinites during Hydration and Dehydration Events in the Erro-Tobbio Massif (Italy): from Ocean to Subduction
Abstract. Subducted serpentinites are important for recycling water and fluid mobile elements into the deep Earth. Here we present a texturally controlled
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 03/06/2025
🎓Congrats to Dr. Hoda Moradi, who successfully defended her #PhD thesis “Mobilization of aluminum and other toxic elements under changing alpine climatic conditions” Wishing you all the best in the future! @unibern.bsky.social
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 22/05/2025
📢Paper alert! Chatterjee et al. find evidence for alteration of Earth's mantle 🌍 by recycled ocean materials over 3.4 billion years ago in India's Singhbhum Craton. This early recycling is thought to have helped build the planet’s first stable continents: doi.org/10.1016/j.ep... @unibe.ch
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 21/05/2025
🥾 On last weekend, second semester Geography students visited the surroundings of Blatten bei Natters for their introductory course in geology 🏔️. Gneisses, amphibolites and glacial geomorphology were among the topics covered in this excursion led by members of our Institute.
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 13/05/2025
📢Paper alert! The Cr, Ti and O isotopic composition of different ureilites 🌠, a group of achondrite meteorites, reveal the heterogeneity of their parent body. Kruttasch et al. conclude that they derive from an isolated sub-reservoir within the protoplanetary disk. 🔗Read more
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Institute of Geological Sciences, Uni Bern @geologyunibern.bsky.social · 06/05/2025
📢Paper alert! Schlunegger et al. showed the results of an interdisciplinary project focused in Bern, Switzerland, which explored the origin of overdeepenings through a combination of a gravimetry survey, drillings, and dating. 🔗Read more following the link below doi.org/10.5194/esur...
doi.org
The Aare main overdeepening on the northern margin of the European Alps: basins, riegels, and slot canyons
Abstract. This work summarizes the results of an interdisciplinary project where we aimed to explore the origin of overdeepenings through a combination of a gravimetry survey, drillings, and dating. T...
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