Chao Cheng

Structural geologist, postdoc @goetheuni, interested in #microtectonics, #ebsd, #deformation, #rheology. 🏔🌍 Views my own. He/him/his.

[Nature Geoscience @NatureGeosci]

Article: The Eastern Himalayan orogenic corner (syntaxis) is largely formed by flattening of the Indian slab and shear localization in weak crust, which may affect the development of the orogenic system

@ETH_EAPS

https://t.co/Ivmbj7lXCm

[Geological Society of America Publications @GSAPublications]

What controls rifted margin symmetry?
New geodynamic models reveal that mechanical anisotropy alone can drive the transition from symmetric to asymmetric rifting—without needing changes in rheology.
By simulating inherited fabric using a transversely isotropic visco-plastic rheology, we show that even moderate anisotropy can lead to strikingly different rift styles within the same rift system.
A fresh mechanism for understanding conjugate margin formation and along-strike rift variability.
Read the full #Geology study: https://t.co/QLV6XRxSrW
#Geodynamics #Rifting #Lithosphere #Tectonics #Geoscience #GSAPubs

[Nature Geoscience @NatureGeosci]

Article: Metamorphic soles beneath ophiolites record rapid subduction initiation, with high-temperature metamorphism that may be driven by relative motion across the plate interface

https://t.co/hAkCeluXrU

[Luca Dal Zilio @lucadalzilio]

🌍 Thrilled to share our new publication in @Nature! This work is the result of a fantastic collaboration, offering fresh insights into the tectonic history of the India–Eurasia collision.

link: https://t.co/OTmj3c8Etn

[Nature Geoscience @NatureGeosci]

Article: Laramide flat-slab subduction releases fluids into the overlying crust that mediate water-fluxed melting of precursor lower crust, forming porphyry copper deposits

@lamontsterTN1 @geo_frances @jwilki1212 @UoBEarthScience @ES_UCL @LODE_London

https://t.co/EEAZy8R0ie

[Chao Cheng @cc_chengchao]

Wonderful chevron folds in limestone and chert interlayers near the Agios Pavlos in the south of Crete.
These alternating layers deposited from Late Jurassic and deformed during later Hellenic Orogeny under compression as the African plate subducted below the Aegean microplate.

[Nature Geoscience @NatureGeosci]

Article: Quartz emits a piezoelectric charge during deformation that may promote the formation of gold nuggets within veins in orogenic settings that experience earthquakes

@VoiseyRocks @ProfAndyTomkins @JoelBrugger @MonashEAE

https://t.co/QZEP4Mjx5K

[Nature Geoscience @NatureGeosci]

Perspective: Folding-related brittle deformation structures in accretionary wedges may contribute to shallow seismicity in subduction zones

https://t.co/wV9sjJnQBY

[Deformation, Fluids, Tectonics Group #UniBO @DFT_UniBologna]

Viola G. @transtension, Vignaroli G. @GianlucaVignar1, Del Sole L. @leo_delsole and Asti R. of the DFT group at the DRT Conference in Barcelona presenting on #fault architecture, active and #seismogenic faulting and fault #dating" @DRTBarcelona24

[Nature Portfolio @NaturePortfolio]

A study in Nature Geoscience suggests that Earth’s water cycle may have been operating at least 4 billion years ago. https://t.co/XciVO94FoN

[Chao Cheng @cc_chengchao]

Our new analogue modelling work about 3D model of boudinage and folding in bulk constriction is now published in Journal of Structural Geology🎉:
https://t.co/45AShMEdyL

[geosociety @geosociety]

A team of int'l scientists recently examined #Zircon microstructures at the West Clearwater Lake impact structure, Canada as a record of high temperature & pressure conditions during impact melt evolution. Learn more in Earth & Planetary Science Letters: https://t.co/rfvkvHVmBk

[J.-A. Olive @jaodynamics]

New paper out in @Nature today! Turns out #MidOceanRidges can still surprise us… 👇🏻 https://t.co/rhi7IR2dj9

[Simon Schorn @SchornSimon]

📣💥 Do you like thermochronology applied to metamorphic rocks? Then you might be interested in this numerical modelling study published in GEOLOGY exploring exothermic reactions and their effects on the Ar-system. Teaser: hydration causes younging!

https://t.co/c4R2E2FTe6

[EGU TS Division @EGU_TS]

#ECS Monday Paper: Another piece of a puzzle is added by Tewksbury-Christle et al. (US/CH) to understand the Western North America Cordilleran convergent tectonics. https://t.co/sJM0OaAwIX

[Chao Cheng @cc_chengchao]

My Google Scholar word cloud via https://t.co/4j7vWLPduA
Interesting!🌏🌍🧐

[Chao Cheng @cc_chengchao]

Großer Feldberg❄️🛷

[Chao Cheng @cc_chengchao]

Westernmost point of continental Europe

[Geochemistry and Petrology Group @ Uni. Iceland @rockhardIES]

New whole-rock data! The 2023 Svartsengi magma has WR MgO 8.0 wt% and K2O/TiO2 0.23, nicely fitting the glass data. This magma is very similar to magmas erupted during the 2022 and 2023 Fagradasfjall eruptions, although slighly more fractionated.

[Collin Gross @CollinGrossWx]

Iceland’s Reykjanes Peninsula has had over one THOUSAND earthquakes in just the last 24 hours caused by rising magma. Roads are even starting to crack open. The town of Grindavík is under an evacuation order as concern of a volcanic eruption grows.