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#stratigraphy — Public Fediverse posts

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

  1. Excavation workflows are evolving 📊⛏️
    Matteo Rossi introduces QField, a free, open-source mobile #GIS system designed specifically for the field. By linking QGIS workflows with high-accuracy GNSS, teams can now capture #stratigraphy precisely in real-time.
    Learn more in AAP's latest FirstView article

    cambridge.org/core/journals/ad

  2. Neogene Uplift Of The Chiribiquete Tabletop Mountains In The Colombian Amazon And Its Paleobiogeographic Implications
    --
    doi.org/10.1016/j.palaeo.2026. <-- shared paper
    --
    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…”
    --
    #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

  3. Neogene Uplift Of The Chiribiquete Tabletop Mountains In The Colombian Amazon And Its Paleobiogeographic Implications
    --
    doi.org/10.1016/j.palaeo.2026. <-- shared paper
    --
    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…”
    --
    #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

  4. Neogene Uplift Of The Chiribiquete Tabletop Mountains In The Colombian Amazon And Its Paleobiogeographic Implications
    --
    doi.org/10.1016/j.palaeo.2026. <-- shared paper
    --
    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…”
    --
    #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

  5. Neogene Uplift Of The Chiribiquete Tabletop Mountains In The Colombian Amazon And Its Paleobiogeographic Implications
    --
    doi.org/10.1016/j.palaeo.2026. <-- shared paper
    --
    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…”
    --
    #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

  6. Neogene Uplift Of The Chiribiquete Tabletop Mountains In The Colombian Amazon And Its Paleobiogeographic Implications
    --
    doi.org/10.1016/j.palaeo.2026. <-- shared paper
    --
    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…”
    --
    orogeny

  7. Facies (Petrology 💎)

    In geology, a facies is a body of rock with distinctive characteristics. The characteristics can be any observable attribute of rocks and the changes that may occur in those attributes over a geographic area. A facies encompasses all the characteristics of a rock including its chemical, physical, and biological features that distinguish it from adjacent rock. The term "facies" was i...

    en.wikipedia.org/wiki/Facies

    #Facies #Petrology #Stratigraphy #SedimentaryRocks

  8. Dip-slip fault (Geology ⛰️)

    In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust f...

    en.wikipedia.org/wiki/Dip-slip

    #DipSlipFault #EarthSCrust #Stratigraphy #Faults #StructuralGeology #TectonicLandforms

  9. Dip-slip fault (Geology ⛰️)

    In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust f...

    en.wikipedia.org/wiki/Dip-slip

    #DipSlipFault #EarthSCrust #Stratigraphy #Faults #StructuralGeology #TectonicLandforms

  10. Dip-slip fault (Geology ⛰️)

    In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust f...

    en.wikipedia.org/wiki/Dip-slip

    #DipSlipFault #EarthSCrust #Stratigraphy #Faults #StructuralGeology #TectonicLandforms

  11. Chronostratigraphy (Geology terminology ⛰️)

    Chronostratigraphy is the branch of stratigraphy that studies the ages of rock strata in relation to time. The ultimate aim of chronostratigraphy is to arrange the sequence of deposition and the time of deposition of all rocks within a geological region, and eventually, the entire geologic record of the Earth. The stand...

    en.wikipedia.org/wiki/Chronost

    #Chronostratigraphy #Stratigraphy #GeologyTerminology #SubfieldsOfPaleontology

  12. 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 egusphere.copernicus.org/prepr or try CarboKitten.jl at mindthegap-erc.github.io/Carbo
    #geoscience #stratigraphy #sedimentology

  13. What a journey! @Niklas_Hohmann, David De Vleeschouwer, Sietske Batenburg and myself have been thinking very hard how to bring age-depth modeling into deep time. Existing methods have been developed based on our understanding of young timescales and specific environments. Without knowing the stratigraphic architecture of a basin, it is very hard to fill in the gaps in the record with a reasonable model. We've spent the last few years developing ways to manage the uncertainty resulting from our assumptions.

    We're excited to present a method and an R implementation admtools that generalizes age-depth modeling to any setting and timescale. It allows for accounting for any stratigraphic architecture or depositional process. The age-depth models come with tools to transform data between the time and rock domains, be it hashtag#fossil occurrences, proxy values, or even hashtag#phylogenetic trees!

    gchron.copernicus.org/articles

    Admtools is integrated with the FossilSim and paleotree packages to aid phylogenetic simulations and inference from fossil data.

    #fossils #geology #stratigraphy #openscience

  14. El tiempo geológico es esquivo. Intentamos medirlo utilizando fósiles, radioisótopos, yacimientos de cenizas volcánicas y secciones geológicas seleccionadas que mejor representan lo que ocurrió en un momento dado de la historia de la #Tierra. Estas secciones se denominan estratotipos y los límites importantes del tiempo geológico se marcan con puntas doradas. Hoy colocamos una punta dorada en un nuevo límite: el Aeroniano/Teliciano en el Silúrico inferior, en el afloramiento de El Pintado en Sierra Morena de #Sevilla, #Andalucía. #Silurian #geology #stratigraphy

  15. Stratigraphic unit (Geology terminology ⛰️)

    A stratigraphic unit is a volume of rock of identifiable origin and relative age range that is defined by the distinctive and dominant, easily mapped and recognizable petrographic, lithologic or paleontologic features that characterize it. Units must be mappable and distinct from one another, but the contact need not be particula...

    en.wikipedia.org/wiki/Stratigr

    #StratigraphicUnit #Stratigraphy #GeologicalUnits #GeologyTerminology