home.social

#structuralgeology — Public Fediverse posts

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

fetched live
  1. 💧🌏 Greg Cocks @[email protected] ·

    Anatomy Of A Seafloor Spreading Event Captured By In Situ Seismogeodesy
    --
    doi.org/10.1038/s41586-026-107 <-- shared paper
    --
    smithsonianmag.com/smart-news/ <-- shared technical media article
    --
    H/T @Seabed 2030
    “🔍 For the first time, scientists have observed seafloor spreading in real time.
    Seafloor spreading is the process by which new oceanic crust is formed at mid-ocean ridges - a geological process that has shaped entire ocean basins over millions of years.
    During a research expedition in the Indian Ocean, scientists had just deployed a suite of instruments when a series of earthquakes triggered a seafloor spreading event, allowing them to observe the process as it unfolded.
    The findings offer rare new insights into how new oceanic crust forms and how the seafloor continues to evolve…”
    --
    “Earth’s outermost layer - the crust - is constantly renewing itself. It’s broken into giant chunks called tectonic plates that pull apart, push against or slide past one another, creating grand geologic features.
    Underwater mountain ranges, or mid-ocean ridges, for instance, generally take shape where two tectonic plates are moving away from each other. Magma can then bubble up in between, solidifying and turning into new oceanic crust as part of a process called seafloor spreading. Although the phenomenon has created entire ocean basins, it remains quite mysterious because it happens so deep in the water.
    Now, for the first time, scientists have observed this dynamic activity happening in real time. They describe their findings - and their stroke of luck - in a study [link above], shedding light on a mechanism that made roughly two-thirds of Earth’s crust…”
    --
    #Seabed2030 #OceanMapping #Hydrospatial #remotesensing #seafloor #seafloorspreading #oceanic #crust #geology #structuralgeology #IndianOcean #earthquake #midoceanridge #instrumentation #marine #seabed #hydrography #model #modeling #mapping #GIS #spatial #tectonicplates #magma #fortuitous #survey #seismogeodetic #monitoring #submarine #rifting #observation #volcanism #seismicity #dyke #fault #faulting #midoceanridge #MOR

    #seabed2030 #oceanmapping #hydrospatial #remotesensing #seafloor #seafloorspreading
  2. 💧🌏 Greg Cocks @GregCocks ·

    Anatomy Of A Seafloor Spreading Event Captured By In Situ Seismogeodesy
    --
    doi.org/10.1038/s41586-026-107 <-- shared paper
    --
    smithsonianmag.com/smart-news/ <-- shared technical media article
    --
    H/T @Seabed 2030
    “🔍 For the first time, scientists have observed seafloor spreading in real time.
    Seafloor spreading is the process by which new oceanic crust is formed at mid-ocean ridges - a geological process that has shaped entire ocean basins over millions of years.
    During a research expedition in the Indian Ocean, scientists had just deployed a suite of instruments when a series of earthquakes triggered a seafloor spreading event, allowing them to observe the process as it unfolded.
    The findings offer rare new insights into how new oceanic crust forms and how the seafloor continues to evolve…”
    --
    “Earth’s outermost layer - the crust - is constantly renewing itself. It’s broken into giant chunks called tectonic plates that pull apart, push against or slide past one another, creating grand geologic features.
    Underwater mountain ranges, or mid-ocean ridges, for instance, generally take shape where two tectonic plates are moving away from each other. Magma can then bubble up in between, solidifying and turning into new oceanic crust as part of a process called seafloor spreading. Although the phenomenon has created entire ocean basins, it remains quite mysterious because it happens so deep in the water.
    Now, for the first time, scientists have observed this dynamic activity happening in real time. They describe their findings - and their stroke of luck - in a study [link above], shedding light on a mechanism that made roughly two-thirds of Earth’s crust…”
    --

    #seabed2030 #oceanmapping #hydrospatial #remotesensing #seafloor #seafloorspreading
  3. 💧🌏 Greg Cocks @[email protected] ·

    Probabilistic Seismic Hazard Assessment For Taiwan - Updates And Improvements In TEM PSHA2025
    --
    doi.org/10.1016/j.enggeo.2026. <-- shared paper
    --
    globalquakemodel.org/product/g <-- shared (open data) Global Seismic Hazard Map / data
    --
    #GIS #spatial #mapping #seismic #earthquake #catalogues #catalog #resilience #risk #hazard #geology #engineeringgeology #probabilistic #seismichazardassessment #PSHA) #groundmotion #models #modeling #Taiwan #TaiwanEarthquakeModel #rupture #Offshore #seismogenic #structures #opendata #GEM #GlobalSeismicHazardMap #PSHA2025 #national #seismichazard #engineering #infrastructure #subduction #structuralgeology #planning #design #policy #regulations #buildingcodes

    #gis #spatial #mapping #seismic #earthquake #catalogues
  4. 💧🌏 Greg Cocks @GregCocks ·

    Probabilistic Seismic Hazard Assessment For Taiwan - Updates And Improvements In TEM PSHA2025
    --
    doi.org/10.1016/j.enggeo.2026. <-- shared paper
    --
    globalquakemodel.org/product/g <-- shared (open data) Global Seismic Hazard Map / data
    --
    )

    #gis #spatial #mapping #seismic #earthquake #catalogues
  5. 💧🌏 Greg Cocks @[email protected] ·

    Late Miocene Euphrates River Drained Into A Partially Desiccated Eastern Mediterranean
    --
    doi.org/10.1038/s41561-026-019 <-- shared paper
    --
    [the paleogeographic reconstruction is outstanding, including the strength and information conveyed so well in that figure, kudos!]
    H/T @lina Jakaitė-Darkšė
    “Although the Euphrates River - stretching ~3,000 km across Western Asia - has shaped the region’s geology for millions of years, the timing of its origin and the evolution of its course remain enigmatic. So far, two contrasting hypotheses have been proposed to explain the fluvial system’s Late Neogene path: termination in Anatolia at a palaeo-lake or the Mediterranean, or a southeastward continuation to Arabia. Here [they] use seismic-reflection and topographic data to show that two previously identified sedimentary accumulations - deposited during the terminal phase of the Late Miocene Messinian salinity crisis - resulted from dual riverine systems that drained into a partially desiccated eastern Mediterranean before avulsing toward the Persian Gulf and converging to form the modern Euphrates River. From probabilistic sediment-budget modelling, [they] show that although the latest Messinian drainage basins were an order of magnitude smaller than their present-day extents, the total palaeo-discharge exceeded that of the modern Tigris, Euphrates and Nile rivers combined, indicating intense palaeo-precipitation and high palaeo-relief. These results suggest that plate-margin deformation both controlled the fluvial avulsions that diverted the Euphrates River from the Anatolian–Eurasian Plate to the Arabian Plate, and established the conditions necessary for the development of the alluvial Fertile Crescent…”
    #water #hydrology #hydrography #paleogeography #Euphrates #river #Miocene #reconstruction #spatialreconstruction #geology #change #erosion #MiddleEast #spatialanalysis #spatiotemporal #Neogene #Anatolia #paleolake #Mediterranean #Arabia #Messinian #remotesensing #model #modeling #topography #hydrogeomorphology #geomorphology #PersianGulf #sediment #paleodischarge #volume #Tigris #elevation #platetectonics #structuralgeology #platemargin #fluvial #avulsion #FertileCrescent

    #water #hydrology #hydrography #paleogeography #euphrates #river
  6. 💧🌏 Greg Cocks @GregCocks ·

    Late Miocene Euphrates River Drained Into A Partially Desiccated Eastern Mediterranean
    --
    doi.org/10.1038/s41561-026-019 <-- shared paper
    --
    [the paleogeographic reconstruction is outstanding, including the strength and information conveyed so well in that figure, kudos!]
    H/T @lina Jakaitė-Darkšė
    “Although the Euphrates River - stretching ~3,000 km across Western Asia - has shaped the region’s geology for millions of years, the timing of its origin and the evolution of its course remain enigmatic. So far, two contrasting hypotheses have been proposed to explain the fluvial system’s Late Neogene path: termination in Anatolia at a palaeo-lake or the Mediterranean, or a southeastward continuation to Arabia. Here [they] use seismic-reflection and topographic data to show that two previously identified sedimentary accumulations - deposited during the terminal phase of the Late Miocene Messinian salinity crisis - resulted from dual riverine systems that drained into a partially desiccated eastern Mediterranean before avulsing toward the Persian Gulf and converging to form the modern Euphrates River. From probabilistic sediment-budget modelling, [they] show that although the latest Messinian drainage basins were an order of magnitude smaller than their present-day extents, the total palaeo-discharge exceeded that of the modern Tigris, Euphrates and Nile rivers combined, indicating intense palaeo-precipitation and high palaeo-relief. These results suggest that plate-margin deformation both controlled the fluvial avulsions that diverted the Euphrates River from the Anatolian–Eurasian Plate to the Arabian Plate, and established the conditions necessary for the development of the alluvial Fertile Crescent…”

    #water #hydrology #hydrography #paleogeography #euphrates #river
  7. 💧🌏 Greg Cocks @[email protected] ·

    Influence Of Inherited Rifted Margin Architecture On Continental Collision Dynamics
    --
    doi.org/10.1029/2025GC012681 | researchgate.net/publication/4 <-- shared paper
    --
    #tectonics #geoscience #geology #mountainbuilding #orogeny #subduction #rifting #Alps #Pyrenees #Caucasus #mountains #numericalmodelling #structuralgeology #platetectonics #Europe #Asia #continents #rockmemory #continentalcollision #model #modeling #spatialanalysis #spatiotemporal #crust #mantle #reconstruction #sediment #erosion #rift #wilsoncycle #accretion #lithosphere

    #tectonics #geoscience #geology #mountainbuilding #orogeny #subduction
  8. 💧🌏 Greg Cocks @GregCocks ·

    Influence Of Inherited Rifted Margin Architecture On Continental Collision Dynamics
    --
    doi.org/10.1029/2025GC012681 | researchgate.net/publication/4 <-- shared paper
    --

    #tectonics #geoscience #geology #mountainbuilding #orogeny #subduction
  9. 💧🌏 Greg Cocks @[email protected] ·

    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

    #miocene #paleogeography #palynology #amazonia #caqueta #paleobiogeography
  10. 💧🌏 Greg Cocks @GregCocks ·

    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

    #miocene #paleogeography #palynology #amazonia #caqueta #paleobiogeography
  11. 💧🌏 Greg Cocks @[email protected] ·

    Mapping of Closed Depressions in Karst Terrains - A GIS-Based Delineation of Endorheic Catchments in the Alburni Massif (Southern Apennine, Italy)
    --
    doi.org/10.3390/hydrology12070 <-- shared paper 🔗
    --
    #doline #poljes #endorheic #karst #GIS #spatial #mapping #DEM #spatialanalysis #geomorphometry #morphometry #remotesensing #glacial #proglacial #glacier #tectonics #geology #water #hydrography #hydrology #hydrogeomorphic #groundwater #surfacewater #closeddepressions #overland #epigenic #subsurface #hypogenic #flow #landform #geomorphology #AlburniMassif #Apennines #Italy #spatialanalysis #elevation #geostatistics #structuralgeology #waterresources #watermanagement #recharge #modeling #tracertest #dyetest #mapping

    #doline #poljes #endorheic #karst #gis #spatial
  12. 💧🌏 Greg Cocks @GregCocks ·

    Mapping of Closed Depressions in Karst Terrains - A GIS-Based Delineation of Endorheic Catchments in the Alburni Massif (Southern Apennine, Italy)
    --
    doi.org/10.3390/hydrology12070 <-- shared paper 🔗
    --

    #doline #poljes #endorheic #karst #gis #spatial
  13. 💧🌏 Greg Cocks @[email protected] ·

    Timing And Style Of Tectonic Assembly And Exhumation Of The Mchugh Complex Within The Chugach-Kodiak Accretionary Wedge, Alaska
    --
    doi.org/10.1029/2025TC009004 <-- shared paper
    --
    discoveryalert.com.au/chugach- <-- shared technical article
    --
    [this paper is WAY over my head in terms of the nuance of structural geology, but still fascinating; further, I have to say: these are TRULY gorgeous, well-designed & presented, and useful geologic maps, cross-sections, annotated photographs and other visualisations (I am jealous of that level of skill, in the BEST of ways!)]
    #geology #structuralgeology #fieldwork #geologic #mapping #KenaiPeninsula #McHughComplex #tectonics #underplating #faulting #subduction #erosion #Exhumation #ChugachKodiak #AccretionaryWedge #Alaska #coast #coastal #mineralogy #transects #crosssections #model #modeling #sampling #spectroscopy #accretionary #accretionarymargin #plateboundary #trench #interpretation #peneplanation #forearc

    #geology #structuralgeology #fieldwork #geologic #mapping #kenaipeninsula
  14. 💧🌏 Greg Cocks @GregCocks ·

    Timing And Style Of Tectonic Assembly And Exhumation Of The Mchugh Complex Within The Chugach-Kodiak Accretionary Wedge, Alaska
    --
    doi.org/10.1029/2025TC009004 <-- shared paper
    --
    discoveryalert.com.au/chugach- <-- shared technical article
    --
    [this paper is WAY over my head in terms of the nuance of structural geology, but still fascinating; further, I have to say: these are TRULY gorgeous, well-designed & presented, and useful geologic maps, cross-sections, annotated photographs and other visualisations (I am jealous of that level of skill, in the BEST of ways!)]

    #geology #structuralgeology #fieldwork #geologic #mapping #kenaipeninsula
  15. 💧🌏 Greg Cocks @[email protected] ·

    The Seismometers At The End Of The Earth Have Names [Antarctica]
    --
    npr.org/2026/02/08/nx-s1-56918 <-- shared radio interview (audio and transcript)
    --
    usgs.gov/news/science-snippet/ <-- shared #USGS page
    --
    usgs.gov/news/science-snippet/ <-- shared USGS overview video
    --
    #radio #NPR #AllThingsConsidered #interview #IceCube #Antarctica #seismometer #SouthPole #globa; #earthquake #monitoring #remotesensing #seismic #GlobalSeismographicNetwork #fedscience #publicgood #publicsafety #earthscience #geology #structuralgeology #spatialanalysis #interdisciplinary #collaboration #geophysics #research #ScienceSnippet
    @Npr @USGS @NSF

    #usgs #radio #npr #allthingsconsidered #interview #icecube
  16. 💧🌏 Greg Cocks @GregCocks ·

    The Seismometers At The End Of The Earth Have Names [Antarctica]
    --
    npr.org/2026/02/08/nx-s1-56918 <-- shared radio interview (audio and transcript)
    --
    usgs.gov/news/science-snippet/ <-- shared page
    --
    usgs.gov/news/science-snippet/ <-- shared USGS overview video
    --
    ;
    @Npr @USGS @NSF

    #usgs #radio #npr #allthingsconsidered #interview #icecube
  17. 💧🌏 Greg Cocks @[email protected] ·

    Geosurvey Reveals Hidden Australia Magnetic Anomaly
    --
    csiro.au/en/news/All/Articles/ <-- shared CSIRO (Australia) technical article
    --
    research.csiro.au/potential-fi <-- shared CSIRO ‘Potential Field Geophysics’ home page
    --
    sciencebase.gov/catalog/item/6 <-- shared @USGS tri-national (Canada, USA and Australia) geologic, geophysics, and mineral resource data release / report
    --
    ga.gov.au/scientific-topics/di <-- shared Australian government airmag overview page
    --
    doi.org/10.5382/Mono.06.30 <-- shared paper, “The Contribution Of High Resolution Aeromagnetics To Archean Gold Exploration In The Kalgoorlie Region, Western Australia”
    --
    #CriticalMinerals #GIS #spatial #Mapping #CriticalMineralsMappingInitiative #geology #structuralgeology #mineralresources #exploration #discovery #remotesensing #model #modeling #mining #economics #Australia #NorthernTerritory #MagneticAnomaly #AustraliaMagneticAnomaly #geomagnetism #openscience #opendata #openaccess #geoscience #geophysics #aeromagneticsurvey #aeromagnetic #spatialanalysis #CSIRO
    @CSIRO

    #criticalminerals #gis #spatial #mapping #criticalmineralsmappinginitiative #geology
  18. 💧🌏 Greg Cocks @GregCocks ·

    Geosurvey Reveals Hidden Australia Magnetic Anomaly
    --
    csiro.au/en/news/All/Articles/ <-- shared CSIRO (Australia) technical article
    --
    research.csiro.au/potential-fi <-- shared CSIRO ‘Potential Field Geophysics’ home page
    --
    sciencebase.gov/catalog/item/6 <-- shared @USGS tri-national (Canada, USA and Australia) geologic, geophysics, and mineral resource data release / report
    --
    ga.gov.au/scientific-topics/di <-- shared Australian government airmag overview page
    --
    doi.org/10.5382/Mono.06.30 <-- shared paper, “The Contribution Of High Resolution Aeromagnetics To Archean Gold Exploration In The Kalgoorlie Region, Western Australia”
    --

    @CSIRO

    #criticalminerals #gis #spatial #mapping #criticalmineralsmappinginitiative #geology
  19. 💧🌏 Greg Cocks @[email protected] ·

    Slab Tearing Along A Subducted Oceanic Plate Joint Beneath The Alaska Peninsula
    --
    doi.org/10.1038/s41561-025-017 <-- shared paper
    --
    #fault #faulting #subduction #slab #oceanic #plate #trench #Alaska #USA #geophysics #seismic #seismology #remotesensing #tomography #model #modeling #seismicity #volcano #vulcanism #Aniakchak #asthenosphere #geology #structuralgeology #mantle

    #fault #faulting #subduction #slab #oceanic #plate
  20. 💧🌏 Greg Cocks @GregCocks ·

    Slab Tearing Along A Subducted Oceanic Plate Joint Beneath The Alaska Peninsula
    --
    doi.org/10.1038/s41561-025-017 <-- shared paper
    --

    #fault #faulting #subduction #slab #oceanic #plate
  21. 💧🌏 Greg Cocks @[email protected] ·

    Earth's Magnetic Shield Protecting The Planet From A Pelting By The Solar Wind
    See how the sun's energy drives a remarkable planetary engine, the climate
    --
    youtu.be/6hD52H7rQak?si=OBGYbK <-- shared video
    --
    [‘cannibalising’ (sic) my own post (!) to bring attention to this outstanding video visualisation and overview, science education/explanation at its finest!; narrated so well (of course!) by #liamneeson !!]
    #GIS #spatial #mapping #geology #structuralgeology #magneticfield #SouthAtlanticAnomaly #SAA #spaceweather #geomagnetism #risk #hazard #hardening #magneticfieldstrength #protection #CME #coronalmassejection #sun #solar #solarwind #visualisation #visualization #education #scienceeducation #overview #explanation
    #NASA

    #nasa #liamneeson #gis #spatial #mapping #geology
  22. 💧🌏 Greg Cocks @GregCocks ·

    Earth's Magnetic Shield Protecting The Planet From A Pelting By The Solar Wind
    See how the sun's energy drives a remarkable planetary engine, the climate
    --
    youtu.be/6hD52H7rQak?si=OBGYbK <-- shared video
    --
    [‘cannibalising’ (sic) my own post (!) to bring attention to this outstanding video visualisation and overview, science education/explanation at its finest!; narrated so well (of course!) by !!]

    #liamneeson #gis #spatial #mapping #geology #structuralgeology
  23. 💧🌏 Greg Cocks @[email protected] ·

    NASA Is Watching a Huge Anomaly Growing in Earth's Magnetic Field [SAA]
    --
    sciencealert.com/nasa-is-watch <-- shared technical article
    --
    youtu.be/qpdQcw_52iM?si=Hn0EZk <-- shared @nasa video - “NASA Explores Earth's Magnetic 'Dent'”
    --
    en.wikipedia.org/wiki/South_At <-- shared SAA wiki
    --
    youtu.be/6hD52H7rQak?si=OBGYbK <-- shared video – “Watch [a visualisation of how the] Earth's magnetic shield protect[s] the planet from a pelting by the solar wind…” [narrated so well (of course!) by #liamneeson !!!!]
    --
    #GIS #spatial #mapping #remotesensing #earthobservation #geology #structuralgeology #magneticdent #magneticanomaly #magneticfield #SouthAtlanticAnomaly #SAA #spaceweather #geomagnetism #satellite #SWARM #orbitalspacecraft #spacecraft #risk #hazard #hardening #magneticfieldstrength #protection #CME #coronalmassejection #sun #solar #solarwind #NASA #ESA
    @[email protected] @esa

    #liamneeson #gis #spatial #mapping #remotesensing #earthobservation
  24. 💧🌏 Greg Cocks @GregCocks ·

    NASA Is Watching a Huge Anomaly Growing in Earth's Magnetic Field [SAA]
    --
    sciencealert.com/nasa-is-watch <-- shared technical article
    --
    youtu.be/qpdQcw_52iM?si=Hn0EZk <-- shared @nasa video - “NASA Explores Earth's Magnetic 'Dent'”
    --
    en.wikipedia.org/wiki/South_At <-- shared SAA wiki
    --
    youtu.be/6hD52H7rQak?si=OBGYbK <-- shared video – “Watch [a visualisation of how the] Earth's magnetic shield protect[s] the planet from a pelting by the solar wind…” [narrated so well (of course!) by !!!!]
    --

    @[email protected] @esa

    #liamneeson #gis #spatial #mapping #remotesensing #earthobservation
  25. Planetary Ecologist @[email protected] ·

    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

    #dipslipfault #earthscrust #stratigraphy #faults #structuralgeology #tectoniclandforms
  26. Planetary Ecologist @[email protected] ·

    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

    #dipslipfault #earthscrust #stratigraphy #faults #structuralgeology #tectoniclandforms
  27. Planetary Ecologist @[email protected] ·

    Joint (geology) (Geology terminology ⛰️)

    In geology, and more specifically in structural geology, a joint is a break of natural origin in a layer or body of rock that lacks visible or measurable movement parallel to the surface of the fracture. Although joints can occur singly, they most frequently appear as joint sets and systems. A joint set is a family of parallel, evenly spaced joints...

    en.wikipedia.org/wiki/Joint_(g

    #Joint #Petrology #StructuralGeology #GeologyTerminology

    #joint #petrology #structuralgeology #geologyterminology
  28. Planetary Ecologist @[email protected] ·

    Joint (geology) (Geology terminology ⛰️)

    In geology, and more specifically in structural geology, a joint is a break of natural origin in a layer or body of rock that lacks visible or measurable movement parallel to the surface of the fracture. Although joints can occur singly, they most frequently appear as joint sets and systems. A joint set is a family of parallel, evenly spaced joints...

    en.wikipedia.org/wiki/Joint_(g

    #Joint #Petrology #StructuralGeology #GeologyTerminology

    #joint #petrology #structuralgeology #geologyterminology
  29. 💧🌏 Greg Cocks @[email protected] ·

    Why Is The Federal Government Spending Millions On Aerial Geological Mapping In Southern Colorado?
    --
    cpr.org/2025/11/19/geological- <-- shared media article
    --
    usgs.gov/earth-mapping-resourc <-- shared (USGS) Earth Mapping Resources Initiative (Earth MRI) entry page
    --
    ngmdb.usgs.gov/emri/#3/40/-96 <-- shared Earth MRI web map(s)
    --
    usgs.gov/centers/gggsc <-- shared USGS Geology, Geophysics, and Geochemistry Science Center entry page
    --
    mrdata.usgs.gov/earthmri/data- <-- shared USGS Colorado Alkaline Igneous Belt Survey report
    --
    usgs.gov/programs/mineral-reso <-- shared final 2025 #DOI / #USGS report on list of critical minerals
    --
    #geophysics #remotesensing #earthobservation #airborne #mapping #spatial #criticalminerals #colorado #geology #structuralgeology #Colorado #USA #EarthMRI #SouthernColorado #geologicdata #geologicmapping #geochemistry #igneous #survey #geophysicalsurvey #economic #economy #mineral #mineralresources
    @CPR @USGS @NV5

    #doi #usgs #geophysics #remotesensing #earthobservation #airborne
  30. 💧🌏 Greg Cocks @GregCocks ·

    Why Is The Federal Government Spending Millions On Aerial Geological Mapping In Southern Colorado?
    --
    cpr.org/2025/11/19/geological- <-- shared media article
    --
    usgs.gov/earth-mapping-resourc <-- shared (USGS) Earth Mapping Resources Initiative (Earth MRI) entry page
    --
    ngmdb.usgs.gov/emri/#3/40/-96 <-- shared Earth MRI web map(s)
    --
    usgs.gov/centers/gggsc <-- shared USGS Geology, Geophysics, and Geochemistry Science Center entry page
    --
    mrdata.usgs.gov/earthmri/data- <-- shared USGS Colorado Alkaline Igneous Belt Survey report
    --
    usgs.gov/programs/mineral-reso <-- shared final 2025 / report on list of critical minerals
    --

    @CPR @USGS @NV5

    #doi #usgs #geophysics #remotesensing #earthobservation #airborne
  31. 💧🌏 Greg Cocks @[email protected] ·

    Mid-Proterozoic Expansion Of Passive Margins And Reduction In Volcanic Outgassing Supported Marine Oxygenation And Eukaryogenesis
    --
    doi.org/10.1016/j.epsl.2025.11 <-- shared paper
    --
    zenodo.org/records/17353904 <-- supplementary data
    --
    #proterozoic #platetectonics #tectonics #deepcarboncycle #eukaryogenesis #evolutionoflife #life #evolution #geology #geologichistory #pangea #supercontinent #diversification #volcanic #offgassing #marine #thermodynamics #model #modeling #spatialanalysis #spatiotemporal #nuna #subduction #structuralgeology #CO2 #carbondioxide #climate #eukaryotic #BoringBillion #rodinia #oceanbasins #marinechemistry #outgassing #global #earth

    #proterozoic #platetectonics #tectonics #deepcarboncycle #eukaryogenesis #evolutionoflife
  32. 💧🌏 Greg Cocks @GregCocks ·

    Mid-Proterozoic Expansion Of Passive Margins And Reduction In Volcanic Outgassing Supported Marine Oxygenation And Eukaryogenesis
    --
    doi.org/10.1016/j.epsl.2025.11 <-- shared paper
    --
    zenodo.org/records/17353904 <-- supplementary data
    --

    #proterozoic #platetectonics #tectonics #deepcarboncycle #eukaryogenesis #evolutionoflife
  33. 💧🌏 Greg Cocks @[email protected] ·

    Giant ‘Gravity Hole’ in the Ocean May Be the Ghost of an Ancient Sea
    --
    scientificamerican.com/article <-- shared technical media article
    --
    doi.org/10.1029/2022GL102694 <-- shared 2023 paper
    --
    oceanservice.noaa.gov/facts/ge <-- technical description of a geoid
    --
    [theories abound]
    "... KEY POINTS
    • Employing time dependent global mantle convection models since the Cretaceous. [the authors] simulate the origin of the enigmatic Indian Ocean geoid low
    • Plumes forming along the edges of the African Large Low Shear Velocity province (LLSVP) control the regional geoid in the Indian Ocean
    • These plumes, in turn are generated by lower mantle Tethyan slabs that perturb the African LLSVP…”
    #GIS #spatial #mapping #geoid #gravity #mapping #global #remotesensing #plume #ocean #ancientocean #gravityhole #geophysics #IndianOcean #geology #structuralgeology #crust #mantle #core #high #low #potsdamgravitypotato #IOGL #tomography #model #modeling #plate #tectonicplate #Tethys #slab #mantleplume #LLSVP #AfricanLargeLowShearVelocity

    #gis #spatial #mapping #geoid #gravity #global
  34. 💧🌏 Greg Cocks @GregCocks ·

    Giant ‘Gravity Hole’ in the Ocean May Be the Ghost of an Ancient Sea
    --
    scientificamerican.com/article <-- shared technical media article
    --
    doi.org/10.1029/2022GL102694 <-- shared 2023 paper
    --
    oceanservice.noaa.gov/facts/ge <-- technical description of a geoid
    --
    [theories abound]
    "... KEY POINTS
    • Employing time dependent global mantle convection models since the Cretaceous. [the authors] simulate the origin of the enigmatic Indian Ocean geoid low
    • Plumes forming along the edges of the African Large Low Shear Velocity province (LLSVP) control the regional geoid in the Indian Ocean
    • These plumes, in turn are generated by lower mantle Tethyan slabs that perturb the African LLSVP…”

    #gis #spatial #mapping #geoid #gravity #global
  35. Planetary Ecologist @[email protected] ·

    Flow banding (Volcanology 🌋)

    Flow banding is a geological term to describe bands or layers that can sometimes be seen in rock that formed from magma. Flow banding is caused by friction of the viscous magma that is in contact with a solid rock interface, usually the wall rock to an intrusive chamber or, if the magma is erupted, the surface of the Earth across which the lav...

    en.wikipedia.org/wiki/Flow_ban

    #FlowBanding #Volcanology #IgneousRocks #IgneousPetrology #StructuralGeology

    #flowbanding #volcanology #igneousrocks #igneouspetrology #structuralgeology
  36. Planetary Ecologist @[email protected] ·

    Joint (geology) (Petrology 💎)

    In geology, and more specifically in structural geology, a joint is a break of natural origin in a layer or body of rock that lacks visible or measurable movement parallel to the surface of the fracture. Although joints can occur singly, they most frequently appear as joint sets and systems. A joint set is a family of parallel, evenly spaced joints that can b...

    en.wikipedia.org/wiki/Joint_(g

    #Joint #Petrology #StructuralGeology #GeologyTerminology

    #joint #petrology #structuralgeology #geologyterminology
  37. 💧🌏 Greg Cocks @[email protected] ·

    Non-Collisional Orogeny In Northeast Japan Driven By Nearby Same-Dip Double Subduction
    --
    doi.org/10.1038/s41561-025-017 <-- shared paper
    --
    #geology #structuralgeology #japan #subduction #system #plate #geometry #mantle #tectonics #geodynamics #orogeny #Ryukyu #IzuBoninMarianas #kinematics #backarc #earthquake #fault #faulting #orogenesis #platetectonics

    #geology #structuralgeology #japan #subduction #system #plate
  38. 💧🌏 Greg Cocks @GregCocks ·

    Non-Collisional Orogeny In Northeast Japan Driven By Nearby Same-Dip Double Subduction
    --
    doi.org/10.1038/s41561-025-017 <-- shared paper
    --

    #geology #structuralgeology #japan #subduction #system #plate
  39. Planetary Ecologist @[email protected] ·

    Mélange (Petrology 💎)

    In geology, a mélange is a large-scale breccia, a mappable body of rock characterized by a lack of continuous bedding and the inclusion of fragments of rock of all sizes, contained in a fine-grained deformed matrix. The mélange typically consists of a jumble of large blocks of varied lithologies. Both tectonic and sedimentary processes can form mélange. Mélange occurrences are associated with...

    en.wikipedia.org/wiki/Mélange

    #Melange #Petrology #StructuralGeology

    #melange #petrology #structuralgeology
  40. Planetary Ecologist @[email protected] ·

    Homoclinal ridge (Geomorphology 🏞️)

    A homoclinal ridge or strike ridge is a hill or ridge with a moderate, generally between 10° and 30°, sloping backslope. Its backslope is a dip slope, that conforms with the dip of a resistant stratum or strata, called caprock. On the other side of the other slope, which is its frontslope, of a homoclinal ridge is a ...

    en.wikipedia.org/wiki/Homoclin

    #HomoclinalRidge #Ridges #Geomorphology #SlopeLandforms #ErosionLandforms #StructuralGeology

    #homoclinalridge #ridges #geomorphology #slopelandforms #erosionlandforms #structuralgeology
  41. 💧🌏 Greg Cocks @[email protected] ·

    Understanding Geological Time With Associate Professor Stijn Glorie [video]
    --
    youtu.be/H2M2ZuVe9pE?si=iTahPK <-- shared video
    --
    “A/Prof Stijn Glorie is a geochronologist at University of Adelaide who uses radio-isotope decay to date rocks, revealing Earth’s evolution and aiding insights into mountains, ores, and climate-tectonics links…”
    #geology #time #learning #education #dating #age #epochs #understanding #rocks #structuralgeology #Quaternary #conception

    #geology #time #learning #education #dating #age
  42. 💧🌏 Greg Cocks @GregCocks ·

    Understanding Geological Time With Associate Professor Stijn Glorie [video]
    --
    youtu.be/H2M2ZuVe9pE?si=iTahPK <-- shared video
    --
    “A/Prof Stijn Glorie is a geochronologist at University of Adelaide who uses radio-isotope decay to date rocks, revealing Earth’s evolution and aiding insights into mountains, ores, and climate-tectonics links…”

    #geology #time #learning #education #dating #age
  43. Jorge Ginés 🇪🇺 🌍🛰️ @[email protected] ·

    What day is today...? Time for #FridayFold In #Asturias (NW Spain), once part of the mighty Variscan orogen. A nice example of tightly folded Devonian turbiditic deposits. Cap lens for scale. Medium size geologist for scale. #geology #structuralgeology #science ⚒️🧪

    #fridayfold #asturias #geology #structuralgeology #science
  44. 💧🌏 Greg Cocks @[email protected] ·

    Weak Asthenosphere Beneath The Eurasian Interior Inferred From Aral Sea Desiccation
    --
    doi.org/10.1038/s41561-025-016 <-- shared paper
    --
    #GIS #spatial #mapping #remotesensing #earthobservation #inSAR #AralSea #rebound #isostaticrebound #asthenosphere #geology #structuralgeology #mantle #crust #weight #rheology #spatialanalysis #spatiotemporal #continent #desiccation #loss #drying #water #hydrology #elastic #viscoelastic #model #modeling #uplift #lithosphere #humanimpacts #tectonic

    #gis #spatial #mapping #remotesensing #earthobservation #insar
  45. 💧🌏 Greg Cocks @GregCocks ·

    Weak Asthenosphere Beneath The Eurasian Interior Inferred From Aral Sea Desiccation
    --
    doi.org/10.1038/s41561-025-016 <-- shared paper
    --

    #gis #spatial #mapping #remotesensing #earthobservation #insar
  46. 💧🌏 Greg Cocks @[email protected] ·

    Critical Minerals In Ores (CMiO) Database
    --
    lnkd.in/gynRjUfn <-- shared USGS publication
    --
    lnkd.in/gETca3DQ <-- shared link to open data database, web map services, etc
    --
    portal.ga.gov.au/persona/cmmi <-- shared web map
    --
    lnkd.in/gdmMp2zg <-- shared editorial piece on critical minerals and geopolitics
    --
    #geology #fedscience #opendata #CMMI #CMiO #criticalminerals #minerals #ores #database #opendata #GIS #spatial #mapping #spatialanalysis #commodities #technology #components #geochemistry #deposits #mining #extraction #classifaction #nomenclature #environments #structuralgeology #exploration
    @USGS | @GeoscienceAustralia | @GeologicalSurveyOfCanada

    #geology #fedscience #opendata #cmmi #cmio #criticalminerals
  47. 💧🌏 Greg Cocks @GregCocks ·

    Critical Minerals In Ores (CMiO) Database
    --
    lnkd.in/gynRjUfn <-- shared USGS publication
    --
    lnkd.in/gETca3DQ <-- shared link to open data database, web map services, etc
    --
    portal.ga.gov.au/persona/cmmi <-- shared web map
    --
    lnkd.in/gdmMp2zg <-- shared editorial piece on critical minerals and geopolitics
    --

    @USGS | @GeoscienceAustralia | @GeologicalSurveyOfCanada

    #geology #fedscience #opendata #cmmi #cmio #criticalminerals
  48. 💧🌏 Greg Cocks @[email protected] ·

    USGS Releases Assessment Of Undiscovered Oil & Gas Resources In Wyoming, Southern Montana
    --
    usgs.gov/news/national-news-re <-- shared article
    --
    doi.org/10.3133/fs20243049 <-- shared publication
    --
    sciencebase.gov/catalog/item/6 <-- shared open data
    --
    api.sciencebase.gov/geoserver/ <-- shared spatial service
    --
    #GIS #spatial #mapping #oilandgas #OG #naturalresources #oil #gas #fedscience #model #modeling #Wyoming #Montana #assessment #WindRiverBasin #BighornBasin #PowderRiverBasin #exploration #undiscovered #energy #energysupply #geology #structuralgeology #sediments #lithology #reserves
    @USGS

    #gis #spatial #mapping #oilandgas #og #naturalresources
  49. 💧🌏 Greg Cocks @GregCocks ·

    USGS Releases Assessment Of Undiscovered Oil & Gas Resources In Wyoming, Southern Montana
    --
    usgs.gov/news/national-news-re <-- shared article
    --
    doi.org/10.3133/fs20243049 <-- shared publication
    --
    sciencebase.gov/catalog/item/6 <-- shared open data
    --
    api.sciencebase.gov/geoserver/ <-- shared spatial service
    --

    @USGS

    #gis #spatial #mapping #oilandgas #og #naturalresources
  50. 💧🌏 Greg Cocks @[email protected] ·

    Multispectral Remote Sensing Expression of Lineaments and Alteration Minerals in Part of Crystalline Rock Units of Southwestern Nigeria - Implication on Gold Prospecting
    --
    doi.org/10.1016/j.oreoa.2025.1 <-- shared paper
    --
    #GIS #spatial #mapping #ASTER #Gold #Hydrothermal #HydrothermalAlteration #Lineament #Landsat #ETM #EnhancedThematicMapper #phyllic #Ilesha #schist #belt #geology #mining #Nigeria #naturalresources #mineral #mineralresources #golddeposits #aerogeophysical #remotesensing #geophysical #spatialanalysis #geomorphology #geomorphometry #alteration #propylitic #argillic #mineralogy #XRD #structuralgeology #lithology #PrincipalComponentAnalysis #PCA #prospecting #fracture #joints #faulting #Multispectral #Lineaments #Crystalline

    #gis #spatial #mapping #aster #gold #hydrothermal
  51. 💧🌏 Greg Cocks @GregCocks ·

    Multispectral Remote Sensing Expression of Lineaments and Alteration Minerals in Part of Crystalline Rock Units of Southwestern Nigeria - Implication on Gold Prospecting
    --
    doi.org/10.1016/j.oreoa.2025.1 <-- shared paper
    --

    #gis #spatial #mapping #aster #gold #hydrothermal
  52. 💧🌏 Greg Cocks @GregCocks ·

    How Did The Great Lakes Form? Scientists Think They Figured It Out
    --
    earth.com/news/how-did-the-gre <-- shared technical link
    --
    doi.org/10.1029/2024GL110777 <-- shared paper
    --

    #geology #mapping #structuralgeology #usa #canada #greatlakes
  53. 💧🌏 Greg Cocks @GregCocks ·

    Escalation Of Caldera Unrest Indicated By Increasing Emission Of Isotopically Light Sulfur
    --
    doi.org/10.1038/s41561-024-016 <-- shared paper
    --

    #gis #spatial #mapping #geology #structuralgeology #volcano
  54. 💧🌏 Greg Cocks @GregCocks ·

    There Are Trails In Ireland That Have Been Certified As Part Of The International Appalachian Trail, Because They Were Formed Together During Pangea
    --
    iat-sia.org/ <-- shared International Appalachian Trail home page
    --
    en.wikipedia.org/wiki/Internat <-- shared Wikipedia page
    --

    #gis #spatial #mapping #hiking #tramping #walking
  55. 💧🌏 Greg Cocks @GregCocks ·

    Large Magma Bodies Found Beneath Dormant Volcanoes, Surprising Scientists
    --
    phys.org/news/2025-01-large-ma <-- shared technical article
    --
    doi.org/10.1038/s41561-024-016 <-- shared paper
    --

    #gis #spatial #mapping #remotesensing #seismology #seismic
  56. 💧🌏 Greg Cocks @GregCocks ·

    [SWARM] Satellites Detect Hidden Magnetic Signals In Earth's Oceans
    --
    earth.com/news/satellites-dete <-- shared technical article
    --
    doi.org/10.1098/rsta.2024.0078 <-- shared paper
    --
    esa.int/Applications/Observing <-- shared ESA SWARM home page
    --

    #gis #spatial #mapping #remotesensing #esa #swarm