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#sedimentology — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #sedimentology, aggregated by home.social.

  1. Neogene Uplift Of The Chiribiquete Tabletop Mountains In The Colombian Amazon And Its Paleobiogeographic Implications
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    doi.org/10.1016/j.palaeo.2026. <-- shared paper
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    H/T Richard F. Ott
    “The Chiribiquete are table top mountains located deep in the Colombian Amazon and host many rare endemic species. Helanlin Xiang's work shows that the Chiribiquete Mountains likely upifted before the Early Miocene and could have acted as a long-lived stepping stone, connecting species in the Andes with the Guyana Shield…”
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    #Miocene #Paleogeography #Palynology #Amazonia #Caquetá #paleobiogeography #Columbia #Amazon #jungle #geomorphology #neogene #uplift #geology #structuralgeology #tectonics #Chiribiquete #tabletopmountains #Andes #GuyanaShield #dating #isotopes #biome #ecosystem #tepui #elevation #sedimentology #stratigraphy #Araracuara #fluvial #lacustrine #deposition orogeny #regional #uplift #drainage #hydrography #hydrology #river #network #GIS #spatial #mapping #spatialanalysis #spatiotemporal #geophysics #seismology

  2. Leaching Of Legacy Paper Mill Sludge Induces Lithification By Cementation Of Fluvial Sediment
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    doi.org/10.1016/j.ancene.2025. <-- shared paper
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    [For almost 300 years – from 1709 to 2004 – Penicuik and district was producing high-quality paper which went out all over the world; Walter Scott’s Waverley novels and Robert Louis Stevenson’s notebooks were printed on Penicuik paper, and Turner painted on it too.]
    #Legacy #Papermill #Penicuik #Midlothian #scotland #Sludge #Anthropogenic #lithification #Conglomerate #Cementation #geology #water #hydrology #fluvial #sediment #calcium #leacging #river #stream #waterways #streambed #calciumcarbonate #CaCO3 #SEM #EDX #sampling #XRD #waste #wastemanagement #industrial #industry #industrialwaste #pollution #sedimentology #geochemistry #papermillsludge #PMS

  3. Mineral Monday: Diatoms Diminish Dolomite By Huifang Xu Laboratory syntheses results demonstrate that the dissolved silica can catalyze dolomite precipitation. More diatoms = Less dolomite. #MSACommunications #MineralMonday #dolomite #diatoms #sedimentology #chemicalweathering

  4. Desert varnish (Deserts 🏜️)

    Desert varnish or rock varnish is an orange-yellow to black coating found on exposed rock surfaces in arid environments. Desert varnish is approximately one micrometer thick and exhibits nanometer-scale layering. Rock rust and desert patina are other terms which are also used for the condition, but less often.

    en.wikipedia.org/wiki/Desert_v

    #DesertVarnish #Rocks #Deserts #Sedimentology #Deposition #HypotheticalLifeForms

  5. Desert varnish (Deserts 🏜️)

    Desert varnish or rock varnish is an orange-yellow to black coating found on exposed rock surfaces in arid environments. Desert varnish is approximately one micrometer thick and exhibits nanometer-scale layering. Rock rust and desert patina are other terms which are also used for the condition, but less often.

    en.wikipedia.org/wiki/Desert_v

    #DesertVarnish #Rocks #Deserts #Sedimentology #Deposition #HypotheticalLifeForms