Boneh Rock Deformation @ BGU

Experimental Deformation of Textured Amphibolites in the Semi‐Brittle Regime: Microstructural Signatures of Dislocation‐Mediated Deformation Experimentally deformed hornblende displays a transition to dislocation-mediated deformation approaching 800°C at a pressure of 1 GPa Dislocation-mediated deformation is accompanied by a transiti...

see here:
agupubs.onlinelibrary.wiley.com/doi/full/10....

02.02.2026 09:13 — 👍 0    🔁 0    💬 0    📌 0

Carried out with Sarah Incel (GFZ Helmholtz Centre for Geosciences) and Joerg Renner (Ruhr-Universität Bochum)!

02.02.2026 09:13 — 👍 0    🔁 0    💬 1    📌 0

The nice thing about this paper is that it demonstrates experimentally that these microstructural signatures can be used to identify deformation mechanisms in naturally deformed amphibolites.

02.02.2026 09:13 — 👍 0    🔁 0    💬 1    📌 0

The study shows that higher temperatures weaken hornblende-rich rocks, reduce fracturing, and reveal a coupled evolution of brittle fractures and plasticity (via stress-induced crystal defects).

02.02.2026 09:13 — 👍 0    🔁 0    💬 1    📌 0

🚨 New Paper Alert 🚨

I’m excited to share the first paper from Bhupesh Meher's PhD work (also my first paper as a PhD advisor!).

Deformation experiments on hornblende-rich samples at the brittle-plastic transition (see more in comments...)

02.02.2026 09:09 — 👍 2    🔁 1    💬 1    📌 1

Thin section of deformed contact metamorphosed marble with clinopyroxene blasts surrounded by twinned and deformed calcite. Width: 3 mm. Contact aureole of the Monte Capanne pluton, Elba

Textbook: 'contact metamorphism is static'

The thin section:

In my experience, I have never seen fully static contact metamorphism, but that's maybe because Tuscan plutons aureoles are very deformed. Anyway, I am pretty tired of reading this sentence in textbooks 🙃

⚒️🧪
#thinsectionthursday

19.12.2024 09:37 — 👍 30    🔁 4    💬 5    📌 0

Mineral & Rock Physics (AGU 2024)
Now you can propose new sessions for this year's AGU 2024 @ Washington D.C.! Deadline is April 24th - so now's the time!

02.04.2024 13:10 — 👍 1    🔁 0    💬 0    📌 0