💧🌏 Greg CocksDec 16, 2024
Himalayas Formation May Have Destroyed At Least 30% Of Continental Crust In Collision Zone
--
https://phys.org/news/2024-11-himalayas-formation-destroyed-continental-crust.html <-- shared technical article
--
https://doi.org/10.1016/j.epsl.2024.119070 <-- shared paper
--
#geology #structuralgeology #model #modeling #numericmodeling #geochemistry #mountainbuilding #orogeny #Himalayas #continentalcrust #platetectonics #continents #EuropeanAlps #ZagrosMountains #mantle #subsumed #deformation #erosion #thickening #extrusion #massbalance #calculations #delamination #topography #lithosphere
Himalayas formation may have destroyed at least 30% of continental crust in collision zone

Earth's continents are slowly moving across the planet's surface due to plate tectonics, culminating in regions of crustal expansion and collision. In the latter case, high temperatures and pressures lead to the reworking of the crust, affecting its composition, as well as that of the underlying mantle. Furthermore, when two continental plates collide, distinct topographic features are produced, namely mountain ranges, which are surficial manifests of Earth's thickened crust.

Phys.org
RTNSep 26, 2024

#GeekWire:

"NTSB spots flaws in hull of Oceangate’s Titan submersible and focuses on a bang"

https://www.geekwire.com/2024/bang-anomalies-hull-oceangate-titan-sub-ntsb/

25.9.2024

#CarbonFiber #composite #delamination #dive #engineering #NTSB #Oceangate #StocktonRush #submersible #Titan

NTSB spots flaws in hull of Oceangate’s Titan submersible and focuses on a bang

Investigators found flaws in the hull that was made for OceanGate's Titan sub — plus changes in how the hull responded during dives.

GeekWire
Matt WillemsenAug 1, 2023
Dissolving circuit boards in water sounds better than shredding and burning
They're easier to recycle, and chips come right off. Will they take off?
https://arstechnica.com/gadgets/2023/07/dissolving-circuit-boards-in-water-sounds-better-than-shredding-and-burning/ #CircuitBoards #recycling #water #soluble #delamination #electronics
Dissolving circuit boards in water sounds better than shredding and burning

They're easier to recycle, and chips come right off. Will they take off?

Ars Technica
Vicky VeritasJul 3, 2023

Lithospheric drips (a relatively cold and dense mass of lithosphere that sinks vertically into the upper mantle) have been identified using geophysical methods in the Great Basin and now in northern Borneo. The Borneo study published in Nature was accompanied by this startling artist’s depiction of a lithospheric drip.

More on Borneo here: https://www.nature.com/articles/s41561-023-01201-7#data-availability

#LithosphericDrip #Delamination #GreatBasin #NorthernBorneo #geology

Post-subduction tectonics induced by extension from a lithospheric drip - Nature Geoscience

Post-subduction downwelling of lithosphere—or drips—can lead to extension and crustal thinning, influencing the tectonic evolution of continental crust after subduction termination, according to thermo-mechanical simulations.

Nature