Live and recent posts from across the Fediverse tagged #paleogeography, aggregated by home.social.
This is a bit niche, but I think it's interesting. We usually figure out where continents were back in time based on retained magnetic properties. You know what can be a great sanity check on that? Checking that the fossils match those positions.
Link: https://www.lyellcollection.org/doi/10.1144/gslspecpub2026-18
Paleocontinent (Paleogeography 🦕)
A paleocontinent or palaeocontinent is a distinct area of continental crust that existed as a major landmass in the geological past. There have been many different landmasses throughout Earth's time. They range in sizes since some are just a collection of small microcontinents, and others are large conglomerates of crust. As time ...
https://en.wikipedia.org/wiki/Paleocontinent
#Paleocontinent #Continents #Paleogeography #Supercontinents #HistoricalContinents
💁🏻♀️ TIL: 🌍🧭 Researchers at the University of #Barcelona built a free web tool that converts current #fossil coordinates to where those locations sat millions of years ago.
It runs five global plate tectonic models simultaneously and shows automated results nearly identical to desktop #software, with an average spatial error under 17 meters.
👉 https://scitechdaily.com/where-on-earth-was-this-fossil-200-million-years-ago/
#paleontology #platetectonics #paleogeography #universityofbarcelona #geology #map #science #earthscience #cretaceous
Stratotype (Paleogeography 🦕)
In geology, a stratotype or type section is the physical location or outcrop of a particular reference exposure of a stratigraphic sequence or stratigraphic boundary. If the stratigraphic unit is layered, it is called a stratotype, whereas the standard of reference for unlayered rocks is the type locality. It can also be defined as "The particular sequence of strata chosen as st...
Late Miocene Euphrates River Drained Into A Partially Desiccated Eastern Mediterranean
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https://doi.org/10.1038/s41561-026-01962-x <-- shared paper
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[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
Neogene Uplift Of The Chiribiquete Tabletop Mountains In The Colombian Amazon And Its Paleobiogeographic Implications
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https://doi.org/10.1016/j.palaeo.2026.113645 <-- 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
Messinian salinity crisis (Paleogeography 🦕)
The Messinian salinity crisis was an event in which the Mediterranean Sea went into a cycle of partial or nearly complete desiccation throughout the latter part of the Messinian age of the Miocene epoch, from 5.96 to 5.33 Ma. It ended with the Zanclean flood, when the Atlantic reclaimed the basin. Sediment samples from be...
https://en.wikipedia.org/wiki/Messinian_salinity_crisis
#MessinianSalinityCrisis #Messinian #Paleogeography #RegionalGeology
Messinian salinity crisis (Paleogeography 🦕)
The Messinian salinity crisis was an event in which the Mediterranean Sea went into a cycle of partial or nearly complete desiccation throughout the latter part of the Messinian age of the Miocene epoch, from 5.96 to 5.33 Ma. It ended with the Zanclean flood, when the Atlantic reclaimed the basin. Sediment samples from be...
https://en.wikipedia.org/wiki/Messinian_salinity_crisis
#MessinianSalinityCrisis #Messinian #Paleogeography #RegionalGeology
Messinian erosional crisis (Paleogeography 🦕)
The Messinian Erosional Crisis is a phase in the Messinian evolution of the central Mediterranean basin resulting from major drawdown of the Mediterranean seawater. As outlined in numerous studies, erosional events along the margins of the Mediterranean Basin during the Messinian timespan, before and during the evaporit...
https://en.wikipedia.org/wiki/Messinian_erosional_crisis
#MessinianErosionalCrisis #Messinian #Paleogeography #RegionalGeology
Palaeogeography (Paleogeography 🦕)
Palaeogeography is the study of historical geography, generally physical landscapes. Palaeogeography can also include the study of human or cultural environments. When the focus is specifically on landforms, the term paleogeomorphology is sometimes used instead. Paleomagnetism, paleobiogeography, and tectonic history are among its main tools. Palaeogeography ...
Messinian salinity crisis (Paleogeography 🦕)
The Messinian salinity crisis was an event in which the Mediterranean Sea went into a cycle of partial or nearly complete desiccation throughout the latter part of the Messinian age of the Miocene epoch, from 5.96 to 5.33 Ma. It ended with the Zanclean flood, when the Atlantic reclaimed the basin. Sediment samples from be...
https://en.wikipedia.org/wiki/Messinian_salinity_crisis
#MessinianSalinityCrisis #Messinian #Paleogeography #RegionalGeology
Danube fan (Paleogeography 🦕)
The Danube fan is a relict sedimentary feature in the northwestern part of the bottom of the Black Sea. It crosses three of its four major physiographic provinces: basin slope, basin apron, and the Euxine abyssal plain) and splits the abyssal plain into two inequal parts. The fan was deposited by the Danube, Dniester, Southern Bug, and Dnieper rivers. It extends...
Paleogeography of the India–Asia collision system (Paleogeography 🦕)
The paleogeography of the India–Asia collision system is the reconstructed geological and geomorphological evolution within the collision zone of the Himalayan orogenic belt. The continental collision between the Indian Plate and Eurasian Plate i...
https://en.wikipedia.org/wiki/Paleogeography_of_the_India–Asia_collision_system
#PaleogeographyOfTheIndiaAsiaCollisionSystem #GeologyOfIndia #Paleogeography #GeologyOfTheHimalaya
Palaeogeography (Paleogeography 🦕)
Palaeogeography is the study of historical geography, generally physical landscapes. Palaeogeography can also include the study of human or cultural environments. When the focus is specifically on landforms, the term paleogeomorphology is sometimes used instead. Paleomagnetism, paleobiogeography, and tectonic history are among its main tools. Palaeogeography ...
Lake Agassiz (Paleogeography 🦕)
Lake Agassiz was a large proglacial lake that existed in central North America during the late Pleistocene, fed by meltwater from the retreating Laurentide Ice Sheet at the end of the last glacial period. At its peak, the lake's area was larger than all of the modern Great Lakes combined. It eventually drained into what is now Hud...
https://en.wikipedia.org/wiki/Lake_Agassiz
#LakeAgassiz #Megafloods #YoungerDryas #ShrunkenLakes #LakesOfOntario #Paleogeography
Proglacial lakes of Minnesota (Paleogeography 🦕)
The proglacial lakes of Minnesota were lakes created in what is now the U.S. state of Minnesota in central North America in the waning years of the last glacial period. As the Laurentide Ice Sheet decayed at the end of the Wisconsin glaciation, lakes were created in depressions or behind moraines left b...
https://en.wikipedia.org/wiki/Proglacial_lakes_of_Minnesota
#ProglacialLakesOfMinnesota #Paleogeography #ProglacialLakes #GeologyOfMinnesota
Betic corridor (Paleogeography 🦕)
The Betic Corridor, or North-Betic Strait, was a strait of water connecting the Mediterranean Sea with the Atlantic Ocean that once separated the Iberian plate from the Eurasian Plate through the Betic Cordillera. Its closure approximately 5.96 million years ago during the Messinian period of the Miocene epoch, precipitate...
https://en.wikipedia.org/wiki/Betic_corridor
#BeticCorridor #Messinian #BaeticSystem #Paleogeography #RegionalGeology #GeologyOfTheAlps
Marine Isotope Stage 13 (Paleogeography 🦕)
Marine Isotope Stage 13 or MIS 13 is a Marine isotope stage in the geologic temperature record, in Britain covering the Cromerian interglacial period between ~524,000 and 474,000 years ago. It is split into three substages, MIS 13a MIS 13b, and MIS 13c. Some records indicate that MIS 13a was an ...
https://en.wikipedia.org/wiki/Marine_Isotope_Stage_13
#MarineIsotopeStage13 #Glaciology #Interglacials #Paleogeography #Paleoceanography #Paleoclimatology
Paleolimnology (Paleogeography 🦕)
Paleolimnology is a scientific sub-discipline closely related to both limnology and paleoecology. Paleolimnological studies focus on reconstructing the past environments of inland waters using the geologic record, especially with regard to events such as climatic change, eutrophication, acidification, and internal ontogenic processes...
https://en.wikipedia.org/wiki/Paleolimnology
#Paleolimnology #Lakes #Limnology #Paleoecology #AquaticEcology #Paleogeography
Stratotype (Paleogeography 🦕)
In geology, a stratotype or type section is the physical location or outcrop of a particular reference exposure of a stratigraphic sequence or stratigraphic boundary. If the stratigraphic unit is layered, it is called a stratotype, whereas the standard of reference for unlayered rocks is the type locality. Also it can be defined as "The particular sequence of strata chosen as st...
Paleolimnology (Paleogeography 🦕)
Paleolimnology is a scientific sub-discipline closely related to both limnology and paleoecology. Paleolimnological studies focus on reconstructing the past environments of inland waters using the geologic record, especially with regard to events such as climatic change, eutrophication, acidification, and internal ontogenic processes...
https://en.wikipedia.org/wiki/Paleolimnology
#Paleolimnology #Lakes #Limnology #Paleoecology #AquaticEcology #Paleogeography
thanks to maps like this I often want to think of South America and Africa as "North Gondwanaland" but actually apparently they are "West Gondwanaland"?
https://en.wikipedia.org/wiki/Gondwana#/media/File:Opening_of_South_Atlantic_126_Ma.png
Palaeogeography (Paleogeography 🦕)
Palaeogeography is the study of historical geography, generally physical landscapes. Palaeogeography can also include the study of human or cultural environments. When the focus is specifically on landforms, the term paleogeomorphology is sometimes used instead. Paleomagnetism, paleobiogeography, and tectonic history are among its main tools. Palaeogeography ...
Erathem (Geology terminology ⛰️)
In stratigraphy, paleontology, geology, and geobiology, an erathem is the total stratigraphic unit deposited during a certain corresponding span of time during an era in the geologic timescale. It can therefore be used as a chronostratigraphic unit of time which delineates a large span of years – less than a geological eon, but greater than ...
https://en.wikipedia.org/wiki/Erathem
#Erathem #Erathems #Stratigraphy #Geochronology #GeologicalEras #Paleogeography
Reconstructing Ice-Margin Retreat Using Delta Morphostratigraphy
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https://doi.org/10.1038/s41598-017-16763-x <-- shared paper
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[an older paper, but fascinating - and well presented, especially the images/figures]
#GIS #spatial #mapping #icemargins #ice #delta #morphostratigraphy #paleogeography #icesheet #glacier #glacial #icesheet #glacialretreat #geology #landform #geomorphometry #geomorphology #LiDAR #engineeringgeology #remotesensing #icecontact #fluvial #water #hydrology #erosion #distal #glaciofluvial #paraglacial #sediment #deposition #quebec #canada #LaurentideIceSheet #retreat #delta #drainage #physiography #Québec
Stage (stratigraphy) (Geology terminology ⛰️)
In chronostratigraphy, a stage is a succession of rock strata laid down in a single age on the geologic timescale, which usually represents millions of years of deposition. A given stage of rock and the corresponding age of time will by convention have the same name, and the same boundaries. Rock series are divided...
https://en.wikipedia.org/wiki/Stage_(stratigraphy)
#Stage #UnitsOfTime #Paleobiology #Geochronology #GeologicalAges #Paleogeography
Danube fan (Paleogeography 🦕)
The Danube fan is a relict sedimentary feature in the northwestern part of the bottom of the Black Sea. It crosses three of its four major physiographic provinces: basin slope, basin apron, and the Euxine abyssal plain) and splits the abyssal plain into two inequal parts. The fan was deposited by the Danube, Dniester, Southern Bug, and Dnieper rivers. It extends...
Great Tehuelche Paleolake (Paleogeography 🦕)
The Paleolake Tehuelche is the name for several former lakes that existed in the area of Torres del Paine in southern Patagonia. These were proglacial lakes that existed next to the Patagonian Ice Sheet during the Late Pleistocene and Early Holocene. Some of the e...
https://en.wikipedia.org/wiki/Great_Tehuelche_Paleolake
#GreatTehuelchePaleolake #Paleogeography #ProglacialLakes #GlacialLakesOfChile #LakesOfMagallanesRegion #UltimaEsperanzaProvince
Lake Souris (Paleogeography 🦕)
The Glacial Lake Souris occupied the basin of the Souris River from the most southern portion of this river's loop in North Dakota to its elbow in Manitoba, where it turned sharply northward and passed through the Tiger Hills. The length of Lake Souris was about 170 miles, from latitude 48° to latitude 50°35', and its maxi...
https://en.wikipedia.org/wiki/Lake_Souris
#LakeSouris #SourisRiver #ShrunkenLakes #Paleogeography #GeologyOfManitoba #GeologyOfNorthDakota