Someone, call Mario! We've sprung a leak!

#NorthAmerica is dripping from below, #geoscientists discover https://buff.ly/M7CXKiF

For more insight into the tectonic background of today’s M7.7 #earthquake in Myanmar I’d recommend this blog post and the original article on extrusion tectonics. There is also a video hiding somewhere on YouTube that illustrates this experiment perfectly.
#myanmar #geology #geoscience #tectonics #geophysics
https://blogs.egu.eu/divisions/ts/2021/02/15/ts-must-read-tapponnier-et-al-1982-propagating-extrusion-tectonics-in-asia/

There Are Trails In Ireland That Have Been Certified As Part Of The International Appalachian Trail, Because They Were Formed Together During Pangea
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https://iat-sia.org/ <-- shared International Appalachian Trail home page
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https://en.wikipedia.org/wiki/International_Appalachian_Trail <-- shared Wikipedia page
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#GIS #spatial #mapping #hiking #tramping #walking #leisure #InternationalAppalachianTrail #AppalachianTrail #pangea #geology #tectonics #USA #Maine #Canada #Quebec #Newfoundland #Labrador #Greenland #Iceland #Norway #Sweden #Denmark #Scotland #NorthernIreland #Ireland #IsleofMan #Wales #UK #Britain #England #Spain #Portugal #Morocco #structuralgeology

Deep Beneath California's Sierra Nevada, Earth's Lithosphere May Be Peeling Away
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https://phys.org/news/2025-01-deep-beneath-california-sierra-nevada.html <-- shared technical article
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https://doi.org/10.1029/2024GL111290 <-- shared paper
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#GIS #spatial #mapping #geology #lithosphere #California #SierraNevada #continentalcrust #crust #mantle #foundering #remotesensing #geophysics #geophysical #earthquake #spatialanalysis #spatiotemporal #structuralgeology #earthquake #seismic #seismology #Moho #platetectonics #tectonics #shearzone #faults #faulting #seismicity #model #modeling #3dmodel

Reconnaissance geologic mapping has bounded the mainly submerged eighth continent "Zealandia." This is pretty geeky geology stuff. The linked article explains in layman's terms but includes a link to the technical paper. The field methods and the analytical methods used to classify age date are really interesting. Geeky basic geology lab stuff like looking at thin sections, heavy mineral separation, etc. #geology #tectonics #earth #science #Zealandia #NewZealand
https://www.msn.com/en-us/news/technology/earth-s-hidden-eighth-continent-is-no-longer-lost/ar-AA1voZB7?ocid=nl_article_link

I am very happy to share this new paper led by Cécile Figus, which shows the very complex relationship between #diatom prevalence in #Paleogene epicontinental seas, #tectonics, and global #climate.
https://cp.copernicus.org/articles/20/2629/2024/

Congratulations to Dr. Inga Boianju who successfully defended the thesis, "Carbonate deformation across the brittle-ductile transition and how it affects the architecture of thrust systems". Inga was supervised by Christie Rowe (@keepitrheol) and spent many days in the field in Namibia, studying the Naukluft Nappe Complex.
#McGillUniversity #StructuralGeology #Tectonics #Namibia

An interesting attempt to work out if mineral phase changes at higher temperatures and pressures generate a unique enough seismic signature to make any subducted continental crust* hanging around in the mantle detectable. The answer: at some depths, possibly!

Quite intrigued by hints that there may be a lot hanging around in the mantle transition zone...

https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024GL111556

*yes, it can happen, if it's dragged under by a subducting oceanic slab.

Witness 1.8 Billion Years Of Tectonic Plates Dance Across Earth’s Surface In A New Animation
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https://theconversation.com/witness-1-8-billion-years-of-tectonic-plates-dance-across-earths-surface-in-a-new-animation-238209 <-- shared article
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https://doi.org/10.1016/j.gsf.2024.101922 <-- shared paper
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https://youtu.be/_LJG68AmZxI?si=BBBDZg8Qn7DPy2WV <-- shared animation
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#GIS #spatial #mapping #model #modeling #geology #structuralgeology #global #earth #tectonics #tectonicplates #platetectonics #Gondwana #continents #spatiotemporal #Pangaea #Rodinia #Nuna #supercontinent #animation #video #reconstruction

We discovered a new way mountains are formed – from ‘mantle waves’ inside the Earth
https://theconversation.com/we-discovered-a-new-way-mountains-are-formed-from-mantle-waves-inside-the-earth-236910 #geology #tectonics #mantle #MountainBuilding

Rapid Response Seafloor Seismology [USGS]
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https://www.usgs.gov/news/featured-story/rapid-response-seafloor-seismology <-- shared technical article
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#GIS #spatial #mapping #geology #earthquakes #monitoring #remotesensing #geohazards #marine #massmovement #geology #engineeringgeology #tsunami #volcano #risk #hazard #forecasting #seafloor #seismology #hazardmaps #models #modeling #mitigation #seismograph #seismicwaves #instrumentation #underwater #remote #tectonics
@USGS

It's summer in the N hemisphere, take advantage of it to read Tektonika v.2-1 :

https://tektonika.online/index.php/home/issue/view/3

With our new editorial "Recognizing our #Reviewers and Authors, and a Few Insights into Tektonika’s #Review Process" and 10 articles on various subjects.

Enjoy #DOAJ, #openscience, #tectonics and #geology

#Geology biggest #mystery : when did plate #tectonics start to reshape Earth?

Nice article on the origins of #plate #tectonics in early earth history #nature #earthquake #earthscience #geophysics

https://www.nature.com/articles/d41586-024-02602-3

If proven true, I suspect the Theia Impact Hypothesis might explain how different the later formation of cratons on Earth and Venus differentiated from each other.

Geological Evidence from Venus Suggests It Almost Became Earth-like
Anton Petrov
@antonpetrov
#Science #Venus #SolarSystem #Cratons #Tectonics
https://www.youtube.com/watch?v=H6nbYJixXRs

Earth's Billion-Year Balancing Act
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https://phys.org/news/2024-02-earth-billion-year.html <-- shared technical article
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https://doi.org/10.1130/GSATG423C.1 <-- shared paper
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#geology #geologichistory #BoringBillion #BalancedBillion #earth #earthhistory #life #lifeonearth #atmosphere #oxygenation #structuralgeology #tectonics #complexlife #eukaryote #platetectonics #crust #mantle #core

New Hydrothermal Field In The Arctic Has Intense Geological Activity
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https://www.earth.com/news/knipovich-ridge-new-hydrothermal-field-arctic-intense-geological-activity/ <-- shared technical article
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https://doi.org/10.1038/s41598-024-60802-3 <-- shared paper
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#GIS #spatial #mapping #hydrothermal #KnipovichRidge #arctic #geology #Svalbard #Norway #arctic #ArcticOcean #marine #life #biodiversity #ecosystem #minerals #geochemistry #climatechange #methane #co2 #magma #tectonics #blacksmokers #metals #JøtulField #Jøtul #greehousegas #chemosynthesis

this is such crazy timing. for the past week i've been writing an rpg module set in an earthquake/tsunami-ravaged western seaboard, off the coast of british columbia in the salish sea. i completely made up this scenario because it seemed like something believable and interesting.

a new study has determined the extent and depth of the cascadia subduction zone using low frequency tomography, and has now determined this will be the location of a megaquake

https://www.cbc.ca/news/canada/british-columbia/cascadia-subduction-zone-imaging-1.7235949

#geology question

somewhere in my amatuer reading, I encountered the claim that N. America accreted volcanic island arcs on its western coast as it moved westward during the Mesozoic.

I would like to know if this is true, and if so, are any fossils known from these volcanic islands?

#tectonics
#volcano