#NewPaper #Paleontology #Stratigraphy #Dinosaurs #Correlation
Raymond R. Rogers, David A. Eberth & Jahandar Ramezani (2023)
The “Judith River−Belly River problem” revisited (Montana-Alberta-Saskatchewan): New perspectives on the correlation of Campanian dinosaur-bearing strata based on a revised stratigraphic model updated with CA-ID-TIMS U-Pb geochronology
GSA Bulletin (advance online publication)
doi: https://doi.org/10.1130/B36999.1
#newpaper #paleontology #stratigraphy #dinosaurs #correlation
"Idealer Schnitt durch die Erdrinde (Ideal cut through the earth's crust)"
Wood engraving printed in color c. 1900.
#geology #stratigraphy #volcanoes #ScientificIllustration #HistoryOfScience
#historyofscience #scientificillustration #volcanoes #stratigraphy #geology
#NewPaper #Paleontology #Dinosaurs #Stratigraphy
David Anthony Eberth, David C. Evans, Jahandar Ramezani, Sandra L. Kamo, Caleb Marshall Brown, Philip J. Currie, and Dennis R. Braman (2023)
Calibrating geologic strata, dinosaurs, and other fossils at Dinosaur Provincial Park (Alberta, Canada) using a new CA-ID-TIMS U–Pb geochronology
Canadian Journal of Earth Sciences (advance online publication)
doi: https://doi.org/10.1139/cjes-2023-0037
https://cdnsciencepub.com/doi/abs/10.1139/cjes-2023-0037
#newpaper #paleontology #dinosaurs #stratigraphy
New publication: "Measuring and evaluating colorimetric properties of samples from loess-paleosol sequences" #OpenAccess #Geoscience #Climatology #Geomorphology #Stratigraphy #Geography https://doi.org/10.1016/j.mex.2023.102159
#openaccess #geoscience #climatology #geomorphology #stratigraphy #geography
Cool new #preprint out by Chris Lowery and colleagues where they use #seismic #stratigraphy to understand #contourite deposits associated with the #LoopCurrent in the #GulfOfMexico: https://eartharxiv.org/repository/view/5495/
#preprint #seismic #stratigraphy #contourite #LoopCurrent #gulfofmexico
You may be surprised, but the International Chronostratigraphic Chart (a.k.a. "the geological time scale") is often and regularly updated by the International Commission on Stratigraphy. They do it 2-4 times a year!
Last version is April 2023.
#geology #stratigraphy #science
#NewPaper #Stratigraphy #Cretaceous #Mongolia
Myu Tanabe, Kazumasa Aoki, Kentaro Chiba, Mototaka Saneyoshi, Shota Kodaira, Hirotsugu Nishido, Buuvei Mainbayar, Khishigjav Tsogtbaatar & Shinobu Ishigaki (2023)
Apatite U–Pb dating of dinosaur teeth from the Upper Cretaceous Nemegt Formation in the Gobi Desert, Mongolia: Contribution to depositional age constraints
Island Arc 32(1): e12488
doi: https://doi.org/10.1111/iar.12488
https://onlinelibrary.wiley.com/doi/10.1111/iar.12488
#newpaper #stratigraphy #cretaceous #mongolia
Fossil: Pentacrinus penichensis, a crinoid whose stems are pentagonal (star-shaped) in cross-section. In terms of stratigraphy, they are found at the lower Jurassic (Toarcian) - about 183 to 174My old. This picture was taken in West Portugal (Peniche).
#pentacrinus #jurassic #toarcian #cronoids #fossil #paleontology #stratigraphy
#pentacrinus #jurassic #toarcian #cronoids #fossil #paleontology #stratigraphy
More geology from my walk along the bluffs at Barnum Point on Camano Island. Classic glacial sequence in this region displayed in the bluff with advance outwash sand mantled by till from the ice sheet advance of the Vashon stade, i.e. the Puget Lobe. Outwash dated to estimated 18 to 20 ka. Till from about 18 ka to about 13.5 ka. Ref. Geologic map of the Juniper Beach 7.5-minute quadrangle, WDGER Geologic Map GM70. #geology #Pleistocene #iceage #stratigraphy #till #glacier #glaciation #PNW #WA
#geology #pleistocene #iceage #stratigraphy #till #glacier #glaciation #pnw #wa
#NewPaper #Paleoclimatology #Stratigraphy
John I. Ejembi, Sally L. Potter-McIntyre, Anna Paltseva & Eric C. Ferré (2023)
New palaeoclimatic constraints from paleosols on the Middle-Late Jurassic landscape, Western Colorado, U.S.A.
International Geology Review (advance online publication)
doi: https://doi.org/10.1080/00206814.2023.2199431
https://www.tandfonline.com/doi/full/10.1080/00206814.2023.2199431
#newpaper #paleoclimatology #stratigraphy
In 1669, Nicolas Steno laid out the fundamentals of stratigraphy, how sedimentary rocks are formed, to explain the similarity of shark teeth to fossil glossopetrae. #Poetry #Science #History #Stratigraphy #Steno (https://sharpgiving.com/thebookofscience/items/p1669.html)
#poetry #science #history #stratigraphy #steno
Hundred Million Years Of Landscape Dynamics From Catchment To Global Scale
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https://doi.org/10.1126/science.add2541 <-- shared paper
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https://youtu.be/sdRF0kuqOkg <-- shared video
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#GIS #spatial #mapping #modeling #model #marine #video #global #earth #sediment #hydrology #catchment #sedimentation #physiography #stratigraphy #spatiotemporal #spatialanalysis #ocean #geomorphology #landform #geology #geologic #geologicrecord #weathering #erosion #flux #Cenozoic #landscapes #paleoelevation #paleoclimate #elevation #sediment #simulation #tectonics #platetectonics #strata
#gis #spatial #mapping #modeling #model #marine #Video #global #earth #sediment #hydrology #catchment #sedimentation #physiography #stratigraphy #spatiotemporal #spatialanalysis #ocean #geomorphology #landform #geology #geologic #geologicrecord #weathering #erosion #Flux #cenozoic #landscapes #paleoelevation #paleoclimate #elevation #simulation #tectonics #platetectonics #strata
Late Miocene Megalake Regressions In Eurasia [Paratethys Sea, The Largest Lake In Earth's History]
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https://doi.org/10.1038/s41598-021-91001-z <-- shared paper
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#GIS #spatial #mapping #Miocene #lake #freshwater #Asia #Europe #megalake #Eurasia #geology #epicontinental #ParatethysSea #platetectonics #evaporation #salinity #landlocked #evapotranspiration #desiccation #geology #water #hydrology #geologichistory #paleoenvironmental #stratigraphy #aridification #paleogeography #geography #reconstruction #regression #saltlake #climatechange #spatialanalysis #model #modeling
#gis #spatial #mapping #miocene #lake #Freshwater #asia #Europe #megalake #eurasia #geology #epicontinental #paratethyssea #platetectonics #evaporation #salinity #landlocked #evapotranspiration #desiccation #water #hydrology #geologichistory #paleoenvironmental #stratigraphy #aridification #paleogeography #geography #reconstruction #Regression #saltlake #climatechange #spatialanalysis #model #modeling
Last weekend I visited the Sloan Gorge Preserve in Woodstock, NY to see the #Devonian Catskill Delta Complex
pretty #outcrops for #mosstodon and fans of #sedimentology #stratigraphy #geomorphology
#devonian #outcrops #mosstodon #sedimentology #stratigraphy #geomorphology
@NatureMC Complete information on the 1) "Working Group on the 'Anthropocene'" of the Subcommission on Quaternary Stratigraphy: http://quaternary.stratigraphy.org/working-groups/anthropocene/
2) This matrix illustration is from the most recent newsletter of the Anthropocene Working Group (February 2022; http://quaternary.stratigraphy.org/wp-content/uploads/2022/03/AWG-Newsletter-2021_final.pdf). As you can see, there are 12 sites being explored. All criteria are also listed. #Anthropocene #stratigraphy
Field photos from *the outcrop of Bullhead Alluvium, displaying complex vertical and lateral changes in grain size related to paleohydraulics in the Pliocene Colorado River. Sediment lithologies indicate interaction between local sources and the main trunk Colorado in the Pliocene. Abundant, well rounded quartzite cobbles probably come from the Grand Canyon area, and angular granitic/mm lithologies likely from local drainages.
#sediment #stratigraphy
#geology
#earthscience
#sediment #stratigraphy #geology #earthscience
Found a canyon. #geology #christmas #stratigraphy #scenery #grandcanyon
#geology #christmas #stratigraphy #scenery #grandcanyon
#NewPaper #Paleontology #Stratigraphy
Yo, K., Hoffman, E., O'Leary, M., & Novacek, M. (2022). A new Early Paleogene fossil mammal locality in the central-eastern Nemegt Basin, Gobi Desert, Mongolia, and notes on mammalian biostratigraphy. Journal of Paleontology, 1-24. doi:10.1017/jpa.2022.85
#newpaper #paleontology #stratigraphy