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Posts by Guy Fisch

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๐Ÿšจ New Paper Alert ๐Ÿšจ

Iโ€™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...)

2 months ago 2 1 1 1

I am very happy to contribute to this century long ongoing investigation into the driving mechanisms behind the evolution of one the most prominent geological features in our region!

5 months ago 0 0 0 0
High-resolution reconstruction of folding history in the central Syrian Arc fold system reveals episodic shortening | GSA Bulletin | GeoScienceWorld Intraplate shortening of the northern African passive margins has been widely observed, but the history of shortening and thus the underlying processes

Excited to share the first paper from my Phd work! Here- pubs.geoscienceworld.org/gsa/gsabulle... we show oscillating folding behavior at the Syrian Arc, an interesting case of intraplate inversion structures developing in a subducting plate, far away from the subduction zone.

5 months ago 0 0 1 0
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Lab earthquakes reveal a wide range of rupture behaviors controlled by fault bends | PNAS Natural faults are typically nonplanar and exhibit multiple bends, which deviate from the general fault orientation at different angles. However, w...

Published!!!! The first article of my PhD and the first from the lab that I set up!! ๐Ÿคฉ๐Ÿคฉ
We study the dynamic effects of fault bends on earthquake ruptures by imaging shear ruptures in PMMA plates propagating through bends (double bends to be exact).
www.pnas.org/doi/10.1073/...
โš’๏ธ๐Ÿงช

11 months ago 10 3 1 0
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Record of paleo water divide locations reveals intermittent divide migration and links to paleoclimate proxies | PNAS Drainage divide migration alters the geometry of drainage basins, influencing the distribution of water, erosion, sediments, and ecosystems across ...

๐Ÿงต 1/3 Very excited to share here our new publication in PNAS! We reveal how drainage divides don't migrate steadily but in intermittent pulses, likely linked to paleoclimate shifts ๐ŸŒ

๐Ÿ“„ DOI: www.pnas.org/doi/10.1073/...
#Geomorphology #LandscapeEvolution #Paleoclimate #OSL

1 year ago 6 3 2 0
(A) Thickness map of the Eocene โ€“ Senonian unit, highlighting the isopachous deposition across the Tamar anticline. (B) Thickness map of the Oligocene โ€“ Early Miocene indicating isopachous deposition across the deep basin. Highlighted is the isopachous deposition in Tamar. (C) Thickness map of the Late Burdigalian showing distinct thickness changes across the basin. White numbers indicate major structural elements. Yellow numbers indicate the location of the cross-sections highlighted in D. (D) cross-sections highlighting the strike-slip negative flower structure, and the Upper Burdigalian growth strata associated with the faulting and folding.

(A) Thickness map of the Eocene โ€“ Senonian unit, highlighting the isopachous deposition across the Tamar anticline. (B) Thickness map of the Oligocene โ€“ Early Miocene indicating isopachous deposition across the deep basin. Highlighted is the isopachous deposition in Tamar. (C) Thickness map of the Late Burdigalian showing distinct thickness changes across the basin. White numbers indicate major structural elements. Yellow numbers indicate the location of the cross-sections highlighted in D. (D) cross-sections highlighting the strike-slip negative flower structure, and the Upper Burdigalian growth strata associated with the faulting and folding.

If you ever did geology in the Levent region, the Syrian Arc is a core concept you were presented as THE major tectonic element of the region for the last ~80 Myr (that and the much younger Dead Sea Transform). But with new data, that model is being challenged. โš’๏ธ๐Ÿงช
eartharxiv.org/repository/v...

1 year ago 28 4 2 0