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

Himalayas Formation May Have Destroyed At Least 30% Of Continental Crust In Collision Zone
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https://phys.org/news/2024-11-himalayas-formation-destroyed-continental-crust.html <-- shared technical article
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https://doi.org/10.1016/j.epsl.2024.119070 <-- shared paper
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#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

We learned about forming the Archean continental crust today from Dr. Jill Kendrick. Using modelling, field investigations, and geochemistry she was able to constrain the hydrous melting of mafic crust to form granitoids (TTGs to be specific). Field shot from the Kapuskasing Structural Zone in Ontario.
#Archean #Geology #Tectonics #McGillUniversity #ContinentalCrust

While it seems logical that the continental crust is thicker under large mountains such as the Himalayas, why is it also so thick under Greenland and Antarctica? Mountains there aren’t as tall.

https://en.m.wikipedia.org/wiki/Continental_crust