Increased Flood Exposure In The Pacific Northwest Following Earthquake-Driven Subsidence And Sea-Level Rise
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https://doi.org/10.1073/pnas.2424659122 <-- shared paper
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https://oregoncapitalchronicle.com/2025/05/02/big-one-coupled-with-rising-ocean-could-leave-many-in-northwest-living-in-flood-zones-study-finds/ <-- shared media article
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#GIS #spatial #mapping #coast #coastal #sealevelrise #sealevel #SLR #climatechange #PNW #PacificNorthWest #Cascadia #flood #flooding #risk #hazard #exposure #damage #infrastructure #publicsafety #geology #fault #faulting #engineeringgeology #subsidence #earthquake #floodplains #omgoing #spatialanalysis #model #deformation #modeling #roads #residents ##Washington #Oregon #California #subduction #communities #management #planning #mitigation #coastalengineering #sinking
#Subduction
SciTech Chronicles. . . . . .May 17th, 2025
#volcanoes #Io #collision #gravitational #AMOC #dilution #mass #expansion #sediment #cooling #ice-sheet #AMOC #Negev #pendants #child #"Tel Malḥata" #SAR #Magellan #metamorphism #subduction
The Next Cascadia Subduction Earthquake
"the next great Cascadia subduction zone earthquake could cause up to 2 m of sudden coastal subsidence, dramatically raising sea level, expanding floodplains, and increasing the flood risk to local communities."
#Cascadia
#Subduction
#Earthquake
https://www.pnas.org/doi/10.1073/pnas.2424659122#executive-summary-abstract
SciTech Chronicles. . . . . . . . .Mar 26th, 2025
#xenoliths #volatiles #subduction #models #spike #glycans #receptor #low-mutation ##Yellowknife #linear #dodecane #SAM #lipids #Mesoscale #signature #transport #photolysis #replenishment #size #thickness
SciTech Chronicles. . . . . . . . .Mar 19th, 2025
#Anchorage #CO2 #SO2 #magma #Nylon-6,6 #fermentation #Electrochemistry #Biorenewable #Bedmap3 #fast-warming #flow #sea-level #aquifers #Seismometers #uplift #subsidence #MTZ #subduction #ringwoodite #wadsleyite
Beautiful cathode-luminescence images showing trace-element zoning and changes in fluid composition during growth of jadeite.
From: Sorena Sorensen, George E Harlow, Douglas Rumble III (2006) The origin of jadeitite-forming subduction-zone fluids: CL-guided SIMS oxygen-isotope and trace-element evidence. American Mineralogist 91: (7) 979-996
#Jade #Mineralogy #Subduction #Geology #Metasomatism #Smithsonian #NMNH
Sorena Sorensen passed away this month.
Sorena was a long-time curator at the National Museum of Natural History of the Smithsonian Institution. She was also an insightful and talented researcher who studied the role of fluids in metamorphism of subduction-related rocks. She also contributed to understanding the formation of jadeite and jade deposits.
News from Elizabeth Cottrell, also at #NMNH
Thermodynamic Model Identifies How Gold Reaches Earth's Surface
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https://phys.org/news/2024-12-thermodynamic-gold-earth-surface.html <-- shared technical article
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https://doi.org/10.1073/pnas.2404731121 <-- shared paper
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#geology #structuralgeology #mantle #crust #tectonics #platetectonics #gold #preciousmetals #subduction #mantle #crust #sulfur #RingOfFire #volcano #volcanics #magma #model #modeling #trisulfur #pressure #temperature #geochemistry #subductionzone #thermodynamics
Here’s a great opportunity to publish your research on the Cascadia Subduction Zone alongside other experts in this special issue.
Submissions are still open. Explore topics and details here:
https://seismica.library.mcgill.ca/announcement/view/17
#cascadia #subduction #earthquake #Seismology #EarthquakeScience #openaccess #diamondopenaccess #scientificjournal #geosciences #openscience
Ancient Sunken Seafloor Reveals Earth’s Deep Secrets – A Mysterious Subduction Zone Deep Beneath The Pacific Ocean, Reshaping Our Understanding Of Earth’s Interior
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https://cmns.umd.edu/news-events/news/nicholas-schmerr-vedran-lekic-ancient-sunken-seafloor-reveals-earths-deep-secrets <-- shared technical article
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https://doi.org/10.1126/sciadv.ado1219 <-- shared paper
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#GIS #spatial #mapping #geology #structuralgeology #seafloor #geologichistory #EastPacificRise #remotesensing #seismic #seismology #mantle #crust #subduction #tectonicplates #model #modeling #LLSVP #imaging #mantletransition #Pacific #PacificOcean #SouthAmerica #research
The submission deadline for our special edition on the Cascadia Subduction Zone is fast approaching!
If you've done research in this fascinating area, don't miss the opportunity to showcase your work. Check out the latest publications here:
https://seismica.library.mcgill.ca/issue/view/91
#cascadia #subduction #seismology #earthquake #EarthquakeScience #peerreviewed #OpenAccess #DiamondOpenAccess #scientificjournal
Early career presenter at #GSAConnects2024 tomorrow:
Dr. Noah Phillips
Wednesday, 25 Sep, 08:20 AM - 08:40 AM , Room 304B
speaking on:
WHY DO SUBDUCTION THRUSTS LOCK? EVOLVING EFFECTIVE GRAIN SIZES MODULATE CREEP RATES THROUGH PRESSURE SOLUTION
Noah is starting up at USC and is looking for potential graduate students.
A Gigapan image of #omphacite from Jenner, California.
The glorious green omphacite is surrounded by assorted other minerals.
https://www.gigapan.com/galleries/7874/gigapans/17328
Ron Schott
At high pressures, fluorine-free topaz is stable: Topaz-OH. It's likely present only on recent Earth in our solar system: water, aluminous sediments (shales; pelites) from continental crust and cold subduction zones are all required.
Given these, Topaz-OH can potentially transport water into the mantle transition zone (where it's stored in #ringwoodite ) Figure from Huang et al (2020).
Scientists Unveil Mysterious Origins Of Earth’s Largest Igneous Rocks
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https://scitechdaily.com/scientists-unveil-mysterious-origins-of-earths-largest-igneous-rocks/ <-- shared technical article
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https://doi.org/10.1126/sciadv.adn3976 <-- shared paper
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#GIS #spatial #mapping #spatialanalysis #spatiotemporal #geology #structuralgeology #earth #global #igneous #vulcanism #massif #anorthosite #origin #formation #morphology #platetectonics #subduction #crust #mantle #Grenvilleorogen #orogeny #geochemistry #mineralogy #magma #oceaniccrust #model #modeling #petrogensis
Randomness Of Megathrust Earthquakes Implied By Rapid Stress Recovery After The Japan Earthquake
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https://doi.org/10.1038/ngeo2343 <-- shared (2015) paper
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#GIS #spatial #mapping #model #modeling #earthquake #japan #subduction #subductionzone #geology #risk #hazard #engineeringgeology #structuralgeology #subsurface #3dmodel #spatialanalysis #spatiotemporal #megathrust #japanese #Tohoku #Tohoku2011 #tectonics #platetectonics #plates #stress #stressrelease #rupture #quake
Geologists Stunned On Discovering A Part Of The Earth That Disappeared 20 Million Years Ago
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https://www.good.is/geologists-stunned-at-discovery-of-earths-ancient-mega-plate-they-didnt-know-about-at-all-ex1 <-- shared technical article
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https://doi.org/10.1016/j.gr.2023.09.013 <-- shared paper
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https://youtu.be/VyEUWySaFPc?si=rzUiIh14GxmiC0l- <-- reconstruction animation
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#GIS #spatial #mapping #remotesensing #geomagnetism #argoland #kinematicreconstruction #platetectonics #GPlates #junctionregion #PhilippineSeaPlate #Borneo #NewZealand #Japan #Zealandia #Philippines #NewGuinea #junction #subduction #plates #geology #structuralgeology #pontus #pontusplate #paeleogeography #geologichistory #Zealandia #seismology #spatialanalysis #spatiotemporal #tomography #model #modeling
Shallow M7.1 #earthquake off the coast of Miyazaki, #japan widely felt. Based on location and mechanism, likely a #subduction thrust event, with some #tsunami generating potential.
https://earthquake.usgs.gov/earthquakes/eventpage/us6000nith/executive
Congratulations to Dr. Meghomita Das, who successfully defended her PhD thesis on the structure of a preserved subduction plate interface on Angel Island, San Francisco Bay.
https://meghomita.com/research/
#Geology #Structure #Subduction #Franciscan #California #Blueschist #McGillUniversity