Climate Warming and Ice Weakening Trigger Alpine Glacier Collapses - The Marmolada Case [Dolomites, Northern Italy]
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https://doi.org/10.1029/2025GL121279 <-- shared paper
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https://doi.org/10.5194/nhess-25-3027-2025 <-- shared technical article
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https://en.wikipedia.org/wiki/2022_Marmolada_serac_collapse <-- shared Wikipedia page
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[anecdotal – in the early 1990s, I chose to spend a winter as a ski bum/guide, living in Arabba, Dolomites, Sud Tyrol; I still remember the excellent days when I got to ski on the Marmolada]
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“PLAIN LANGUAGE SUMMARY: On 3 July 2022, a portion of the Marmolada glacier, near Punta Rocca, collapsed and caused the death of 11 mountaineers. This dramatic event had a considerable impact on the media, and authorities were concerned about the risk that other collapses might occur in this and other glaciers of the Dolomites, a well-renowned mountain region of the southeastern Alps and one of the UNESCO World Heritage sites. [They] analyzed the possible causes of the collapse by developing a three-dimensional thermo-mechanical model. The analysis concluded that the collapse was caused by increased internal ice temperature and the development of a dense network of fractures, reducing the ice shear strength, with melting water that possibly contributed by increasing the basal pressure. [They] also showed that collapsing conditions can be identified with a simplified model version approximating the sliding basal surface as a plane with a slope equal to the surface slope. The developed approach can be used in hazard identification and risk analysis of mountain glaciers…”
#EngineeringGeology #RockMechanics #GlacierCollapse #RiskAssessment #italy #Dolomites #SudTyrol #glacier #melting #massmovement #risk #hazard #analysis #Marmolada #glaciercollapse #cryosphere #warning #mitigation #hazardassessment #alpine #climatechange #globalwarming #massloss #instability #model #modeling #thermomechanical #spatialanalysis #temperature #parameters #ice #shearstrength #water #hydrology #hydrography #basal #waterpressure #meltwater #fracturing #riskanalysis #mountainglaciers

Early-career researcher at #EGU26 Thursday:

**Julia Baumgarte**, Lekima Yakuden, and James Kirkpatrick
Contact Stress Distribution and Slip Stability on Experimental Faults

EGU26-313 | Orals | EMRP1.6
07 May, 08:55–09:05 (CEST)   Room -2.31

#McGillUniversity #UNReno #Seismology #RockMechanics

Shaped cutters outperform conventional designs in hard limestone: ridge cutters reduce peak force by ~8.7% and MSE by ~34%, enabling faster ROP and more efficient drilling. #openaccess at https://shortlink.uk/1n8uL. #Geomechanics #rockmechanics #basin
A new damage-mechanics geostress model shows how progressive rock damage reshapes wellbore stress and improves leakage prediction in deep formations. #openaccess at https://h7.cl/1i8hM #energy #rockmechanics #Geomechanics #Wellbore #drilling #Permeability

Microcracks in rock (Petrology 💎)

Microcracks in rock, also known as microfractures and cracks, are spaces in rock with the longest length of 1000 μm and the other two dimensions of 10 μm. In general, the ratio of width to length of microcracks is between 10−3 to 10−5. Due to the scale, microcracks are observed using microscope to obtain their basic characteristics. Microcrack ...

https://en.wikipedia.org/wiki/Microcracks_in_rock

#MicrocracksInRock #Petrology #RockMechanics #FractureMechanics

Microcracks in rock - Wikipedia

A short update from the iSTRUM project on one of the exciting research avenues of the project: understanding the role of transient rheology on how melted water from ice sheet is redistributed:

https://istrum.github.io/blog/fres-updates-gia/

#geophysics #gia #transientrheology #rheology #rockmechanics

Fingerprinting ice sheet meltwater sources with transient rheology

Updates from Harriet Lau and Allie Coonin on using transient rheology to unravel the sources of ice sheet meltwater

iSTRUM