💧🌏 Greg Cocks7h ago
Timing And Style Of Tectonic Assembly And Exhumation Of The Mchugh Complex Within The Chugach-Kodiak Accretionary Wedge, Alaska
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https://doi.org/10.1029/2025TC009004 <-- shared paper
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https://discoveryalert.com.au/chugach-prince-william-terrain-geology-alaska-2025 <-- shared technical article
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[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
Knowledge Zone5d ago

#QuizOfTheDay: Plate #Tectonics is the generally accepted scientific theory that considers the Earth's lithosphere to comprise a number of large tectonic plates which have been slowly moving since about 3.4 billion years ago.

How many major Tectonic Plates are there?

A. 5
B. 6
C. 7
D. 8

https://knowledgezone.co.in/resources/quiz?qId=6360c89b4387a56690a30cbb

BrownsBayFeb 12
Last night was our second lecture of the MSHI Volcano Naturalist program. The title of the lecture was Volcanos 101. The starting point was plate tectonics then burrowing into the regional setting. Then a focus on igneous rocks, petrology, minerology, geochemistry. It’s a complicated topic but was presented well. I can see it being very challenging and difficult to visualize for someone who has never had a class in geology. #geology #volcano #tectonics #Cascades #PNW #igneous
Mikko TuomiJan 24

Plate #tectonics represents a defining framework of modern #geoscience, accounting for large-scale features on Earth’s surface, such as mountains and valleys, as well as the processes that shape them, like volcanoes and earthquakes.

Present-day plate tectonics have not been observed on any other world in the solar system, and evidence of past activity on planets such as #Mars and #Venus is circumstantial.

Perhaps the best case for extraterrestrial plate tectonics is found in the floating ice shell of #Jupiter’s #moon #Europa.

The plate tectonics on Europa differs from its Earthly analog. It is spatially widespread; it is regionally confined rather than globally connected; it occurs intermittently and is not happening now; and during past activity, plates drifted limited distances of between 10 and 100 kilometers.

#planets
https://eos.org/research-spotlights/europas-plate-tectonic-activity-is-unlike-earths

Paper by Collins et al. (2022):
https://doi.org/10.1029/2022JE007492

Europa’s Plate Tectonic Activity Is Unlike Earth’s

The moon of Jupiter has likely experienced intermittent, regional plate tectonic activity in the past, although the plates are currently dormant.

Eos
Dr. Or M. BialikDec 26

#WeekendReading: Mangano et al., about the shift from extension to strike-slip #tectonics in the Central Mediterranean.

Link: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2025TC009054

💧🌏 Greg CocksDec 23
A Study Debunks [sic] Decades Of Scientific Research - Underwater Canyons Are NOT Created By Rivers… And The Explanation Is Brutal
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https://www.ecoticias.com/en/a-study-debunks-decades-of-scientific-research-underwater-canyons-are-not-created-by-rivers-and-the-explanation-is-brutal/24721/ <-- shared technical article
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https://doi.org/10.1126/sciadv.adv3942 <-- shared paper #GetNZOnTheMap
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https://blogs.egu.eu/divisions/nh/2018/02/05/twenty-or-more-leagues-under-the-sea-a-journey-to-understand-submarine-canyons/ <-- shared interview transcript, “A journey to understand submarine canyons [and their related geohazards]”, European Geosciences Union (EGU.)
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https://www.sustainableseaschallenge.co.nz/our-research/submarine-canyons-connecting-coastal-and-deep-sea-ecosystems <-- shared technical article, “Submarine Canyons - Connecting Coastal And Deep-Sea Ecosystems”
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#spatial #mapping #model #modeling #moprhology #spatialanalysis #tectonics #continentalmargins #submarinecanyons #formation #river #hydrology #massmovement #processes #global #oceanfloor #geology #slumps #currents #seafloor #steepness #debrisflow #geohazard #ecosystems #sediment #movement #infrastructure #damage #valley #marine #underwater #geomorphology #geomorphometry #deepocean # #geostatistics #earthquake #gravity #erosion #continentalslope #biogeochemical #coast #coastal
💧🌏 Greg CocksDec 11
Satellite Captures The First Detailed Look At A Massive Tsunami
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https://www.earth.com/news/satellite-captures-the-first-detailed-look-at-a-giant-tsunami/ <-- shared technical article
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https://doi.org/10.1785/0320250037 <-- shared paper
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#GIS #spatial #mapping #satellite #remotesensing #earthobservation #geology #tectonics #Kuril #Kamchatka #Russia #Pacific #tsunami #NASA #SWOT #energy #dissipation #risk #hazard #model #modeling #DART #buoy #observation #instrumentation #waveforms #propogation #geodetic #spatialanalysis #spatiotemporal #marine #wave #megathrust #rupture #mechanics #altimetry #forecasting #hydrodynamic
News BeepNov 24

Boiling oceans and compressional tectonics on emerging ocean worlds

Roth, L. et al. Transient water vapor at Europa’s South Pole. Science 343, 171–174 (2014). Article  ADS  Google…
#NewsBeep #News #Headlines #astronomy #AstrophysicsandCosmology #General #Geodynamics #Latvia #LV #Physics #Ringsandmoons #Tectonics
https://www.newsbeep.com/270074/

Show threadJasonNov 21

Moving on to plate #tectonics.

Marie Tharp https://en.wikipedia.org/wiki/Marie_Tharp

Tuzo Wilson https://en.wikipedia.org/wiki/John_Tuzo_Wilson

Harry Hess https://en.wikipedia.org/wiki/Harry_Hammond_Hess

30/78 attendance in #GL101

Marie Tharp - Wikipedia

The Kid Should See This 🌈🪐✨Nov 19

⏰🌍 Researchers examine the near-impossible challenge of preserving a time capsule through deep geological time, demonstrating how plate #tectonics continuously destroys and recreates #Earth's surface over millions of years.

👉 https://www.scientificamerican.com/article/can-a-buried-time-capsule-beat-earths-geology-and-deep-time/

#geology #science #research #minerals #future

Can a buried time capsule beat Earth’s geology and deep time?

A ridiculous but instructive thought experiment involving deep time, plate tectonics, erosion and the slow death of the sun

Scientific American