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sasbrune.bsky.social
Sascha Brune
@sasbrune.bsky.social
520 followers 400 following 40 posts
Earth Sciences · Geodynamics · Modelling
GFZ Potsdam (@gfz.bsky.social)
Uni Potsdam (@geowpotsdam.bsky.social)
https://www.gfz-potsdam.de/en/staff/sascha.brune
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sasbrune.bsky.social
⚒️ What can geodetic techniques reveal about continental rifting? ⚒️

Find out in our next #RiftAndRiftedMarginsSeminar

on Dec 1st, 4 pm CET

with Sarah Stamps, @sorcerinsar.bsky.social, James Wood

Register
uni-potsdam.zoom-x.de/meeting/regi...

Past talks
www.youtube.com/@riftandrift...
16:00 Sarah Stamps (Virginia Polytechnic, U.S.A.) “Open Access GNSS datasets for investigations of extensional settings” 16:20 Carolina Pagli (University of Pisa, Italy) “InSAR insights into earthquakes and volcanoes of the East African Rift” 16:40 James Wood (Imperial College London, U.K.) “Resolving coseismic and aseismic normal fault slip behaviours from InSAR time series: examples from Central Greece”
November 25, 2025 at 4:42 PM
sasbrune.bsky.social
⚒️ What does rift topography reveal about tectonic, magmatic and surface processes? ⚒️

Nov 3rd, 4 pm CET
#RiftAndRiftedMarginsSeminar
with
@rehachandresh.bsky.social
@jrarrowsmith.bsky.social
David Fernández-Blanco

Register
uni-potsdam.zoom-x.de/meeting/regi...

www.youtube.com/@riftandrift...
November 3rd: “Topography data and rift processes” 16:00 Reha Chandresh (University of Florence) - Spatio-temporal fault evolution patterns in magma-rich rifts using quantitative geomorphology - insights from Central Afar, Ethiopia 16:20 Ramon Arrowsmith (Arizona State University) - Topography Data and Rift Processes: mapping, landscape reconstruction, tectonic geomorphology, and topographic differencing 16:40 David Fernández-Blanco (Chinese Academy of Sciences) - Decoding continental rift mechanics with uplifted relief
October 28, 2025 at 7:28 AM
sasbrune.bsky.social
⚒️ Interested in the latest analog modelling advances for understanding rifts? ⚒️

Join our #RiftAndRiftedMarginsSeminar with Valentina Armeni, Timothy Schmid, & Daniele Maestrelli

Monday, Oct 6th, 4 pm CEST

Register
uni-potsdam.zoom-x.de/meeting/regi...

Past talks
www.youtube.com/@riftandrift...
October 6th: “Analog modelling of rifting processes” 16:00 Valentina Armeni (University of Potsdam) - Analog and DEM modeling of magma pathways and volcano distribution between adjacent rift segments 16:20 Timothy Schmid (University of Bern) - Rift-axis parallel lower-crustal flow and its implication on rift propagation: A quantitative view of rift dynamics from analogue models 16:40: Daniele Maestrelli (CNR Florence) - Rifting triple junctions: insights from modelling on the Afar RRR junction
September 30, 2025 at 9:54 AM
sasbrune.bsky.social
⚒️ Interested in the latest machine learning advances for understanding rifts? ⚒️

Join our #RiftAndRiftedMarginsSeminar with Tolulope Olugboji, Eric Beaucé, @gimmi-p.bsky.social

Monday, Sept 1st, 4 pm CEST

Register
uni-potsdam.zoom-x.de/meeting/regi...

Past talks
www.youtube.com/playlist?lis...
September 1st: “Machine learning for understanding rifting” 16:00 Tolulope Olugboji (University of Rochester, U.S.A.) “Africa Reassembled: AI and Seismic Algorithms Map the Hidden Lithosphere” 16:20 Eric Beaucé (LDEO, U.S.A.) “New Insights into Small Magnitude Seismicity in Botswana using Machine-Learning-Enhanced Detection Techniques” 16:40 Gianmaria Tortelli (University of Florence, Italy) “Machine learning based study on geochemical data from Afar”
August 25, 2025 at 10:24 PM
sasbrune.bsky.social
⚒️ What do the ups and downs of rifts tell us about tectonics, volcanism and fluid flow? ⚒️

Join our #RiftAndRiftedMarginsSeminar with Kyle Murray, Birhan Kebede, Bodo Bookhagen 

Monday July 7th, 4 pm CET

Register uni-potsdam.zoom-x.de/meeting/regi...

Past talks
www.youtube.com/@riftandrift...
July 7th: “Subsidence across scales – resource extraction, volcanism and tectonics” 16:00 Kyle Murray (University of Hawaii, USA) “Imaging crustal deformation across the central East African Rift: Insights into volcanic, tectonic & hydrologic processes" 16:20  Birhan Kebede (University of Florence, Italy) “Ground subsidence in the Dallol geothermal area: Insights from InSAR Observations” 16:40 Bodo Bookhagen (Potsdam University, Germany) “GNSS and InSAR observations at the Olkaria geothermal site in the central East African Rift System”
July 3, 2025 at 6:37 AM
sasbrune.bsky.social
⚒️ How, where and when do Critical Minerals and Rare Earth Elements accumulate in Rifts? ⚒️

Join our next #RiftAndRiftedMarginsSeminar with Lukas Klose, Anne Glerum, Holly Elliott

Monday June 2nd, 4 pm CET

Register uni-potsdam.zoom-x.de/meeting/regi...

Past talks
www.youtube.com/@riftandrift...
Session: “Critical Minerals and Rare Earth Elements in Rifts” 16:00 Lukas Klose (Constructor University, Germany)- “The behavior of Rare Earth Elements in alkaline lakes from the East African Rift” 16:20 Anne Glerum (GFZ, Potsdam, Germany) “Sediment-hosted zinc-lead deposit formation in continental rifts” 16:40 Holly Elliott (BGS,UK) “The Goldilocks effect of carbonatites in rift zones”
May 26, 2025 at 12:59 PM
sasbrune.bsky.social
Josef Zens @gfz.bsky.social on science communication. A short course for @talents-dn.bsky.social doctoral candidates.

@derekkeir.bsky.social
@susannebuiter.bsky.social @rehachandresh.bsky.social
May 16, 2025 at 11:58 AM
sasbrune.bsky.social
@seismatters.bsky.social holding a short course on Equality, Diversity, Inclusion for @talents-dn.bsky.social doctoral candidates @derekkeir.bsky.social
@susannebuiter.bsky.social @rehachandresh.bsky.social
May 16, 2025 at 6:41 AM
sasbrune.bsky.social
⚒️ How does fluid flow interact with rift dynamics? ⚒️

Join our next #RiftAndRiftedMarginsSeminar with Jolante van Wijk, Mauro Cacace, Kate Waghorn

Monday May 5th, 4 pm CET

Register: uni-potsdam.zoom-x.de/meeting/regi...

Past talks
www.youtube.com/@riftandrift...
16:00 Jolante van Wijk (Los Alamos National Laboratory, USA) “Structure, stratigraphy, and geodynamics of rifts: Implications for subsurface energy” 16:20 Mauro Cacace (GFZ, Potsdam, Germany) “Thermo-hydro-mechanical modelling in rifts with implications on (induced) seismicity: a case study from the Upper Rhine Graben (URG)” 16:40 Kate Waghorn (Memorial University, Canada) “Understanding fluid flow processes where imaging is difficult - examples from mid-ocean ridge flanks through continental margin basins”
April 30, 2025 at 10:20 AM
sasbrune.bsky.social
⚒️ How do rifts propagate in East Africa, South China Sea and in Antarctic ice sheets!? ⚒️

Join our next #RiftAndRiftedMarginsSeminar with Ameha Muluneh, Zhen Sun, Brad Lipovsky

Monday April 7th, 4 pm CET

Register uni-potsdam.zoom-x.de/meeting/regi...

Past talks
www.youtube.com/@riftandrift...
16:00 Ameha Muluneh (GFZ, Potsdam, Germany) “Time-space evolution of rift propagation in Afar, East Africa” 16:20 Zhen Sun (Chinese Academy of Sciences, China) “The continental breakup and propagation of the South China Sea” 16:40 Brad Lipovsky (University of Washington, U.S.) “Rifts in ice shelves: glaciology with some thoughts about tectonic analogies”
April 2, 2025 at 6:54 AM
sasbrune.bsky.social
⚒️ Why are there rifts in mountains like the Apennines, the Cordillera & Tibet? ⚒️

Find out in our next #RiftAndRiftedMarginsSeminar with Simone Lenci, William Holt, Michael Taylor

Monday March 3rd, 4 pm CET

Register uni-potsdam.zoom-x.de/meeting/regi...

Past talks
www.youtube.com/@riftandrift...
March 3rd: “Rifting in orogenic settings” 16:00 Simone Lenci (University of Florence, Italy) “Interaction between transverse and rift faults during the initiation of orogenic extension: the case of Sant'Anna Pelago, Northern Apennines, Italy” 16:20 William Holt (Stony Brook University, U.S.) “The geodynamic and landscape evolution of the SW Cordillera of North America from Eocene to present” 16:40 Michael Taylor (University of Kansas, U.S.) “Extending the orogenic wedge of the Himalayas and the Tibetan plateau”
February 25, 2025 at 7:21 AM
sasbrune.bsky.social
⚒️ What can geochemistry teach us about continental rifts? ⚒️

Find out in our next #RiftAndRiftedMarginsSeminar with Tobias Fischer, Eliot Atekwana, Amdemichael Tadesse

Monday Feb. 3rd, 4 pm CET

Register
uni-potsdam.zoom-x.de/meeting/regi...

Past talks
www.youtube.com/@riftandrift...
February 3rd: “Geochemical investigation of extensional tectonic settings” @derekkeir.bsky.social 16:00 Tobias Fischer (Univ. of New Mexico, USA) “CO2 and other volatiles in active continental rifts” 16:20 Eliot Atekwana (Univ. of California, Davis, USA) “TBD” 16:40 Amdemichael Tadesse (University of Oxford, UK) “Pre-eruptive magmatic conditions in geothermally active volcanic systems of the Main Ethiopian Rift”
January 30, 2025 at 5:03 PM
sasbrune.bsky.social
⚒️ How to advance plate reconstructions of rifted margins? ⚒️

Find out in the first #RiftAndRiftedMarginsSeminar of 2025 with Peter Haas, @gianlufrasca.bsky.social, Eivind Straume

Monday Jan. 6th, 4 pm CET

Register
uni-potsdam.zoom-x.de/meeting/regi...

Past talks
www.youtube.com/@riftandrift...
Online Seminar on “Plate tectonic reconstructions of rifts and rifted margins” 16:00 Peter Haas (GEOMAR, Kiel, Germany) “Plate kinematics and reconstructions in the North East Atlantic” 16:20 Gianluca Frasca (Uni Turin, Italy) “Kinematic reconstruction of the Alpine Tethys and surrounding Mesozoic rifted margins” 16:40 Eivind Straume (UT Austin, US & NORCE, Bergen, Norway) “Impact of mantle convection and dynamic topography on the paleogeography of Arabia-Eurasia and closure of the Tethys Seaway”
December 31, 2024 at 10:01 AM
sasbrune.bsky.social
How do deformation, erosion, and precipitation interact during orogenic growth? ⚒️

Find out in this new study led by Xiaoping Yuan where we used a 3-code coupling between #ASPECT, #FASTSCAPE, and #LFPM.

Article here: www.nature.com/articles/s41... 🧪

@natureportfolio.bsky.social @gfz.bsky.social
December 1, 2024 at 5:29 PM
sasbrune.bsky.social
⚒️ How do magmatic and tectonic processes interact? ⚒️

Find out in our next #RiftAndRiftedMarginsSeminar
with Adina Püsök, @alarosa.bsky.social, Joël Ruch

Monday Dec. 2nd, 4 pm CET

Register: uni-potsdam.zoom-x.de/meeting/regi...

Past talks:
www.youtube.com/@riftandrift...
16:00 Adina Pusok (Uni Oxford, UK) “Inefficient melt transport across a weakened lithosphere led to reduced magmatism in the Turkana Depression” 16:20 Alessandro La Rosa (Uni Pisa, Italy) “Geodetic imaging of lower-crustal magma migration during rifting” 16:40 Joël Ruch (Uni Geneva, Switzerland) “The 2021 onset of the ongoing rifting episode in Reykjanes, SW Iceland”
November 26, 2024 at 7:57 AM
sasbrune.bsky.social
About me: I am interested in geodynamics, plate tectonics, natural hazards, georesources and the carbon cycle - using numerical models like the one below. 🧪⚒️

I co-organize and post about the monthly online #RiftAndRiftedMarginsSeminar. More infos here: tinyurl.com/RiftAndRiftedMarginsSeminar
November 20, 2024 at 7:51 AM
sasbrune.bsky.social
⚒️ How can Electromagnetic & Electrical Methods help understanding extension? ⚒️

#RiftAndRiftedMarginsSeminar
with Kate Selway, Luise Dambly, Romain Corseri

Monday Nov. 4th, 4 pm CET (!Recent time shift!)
Register: uni-potsdam.zoom-x.de/meeting/regi...

Past talks: www.youtube.com/@riftandrift...
16:00 Kate Selway (University of Tasmania, Australia) “3-D Magnetotelluric modelling of the East African Rift at the Northern Tanzanian Divergence” 16:20 Luise Dambly (formerly ETH, Switzerland) “Rifting, transcrustal magmatism and formation of geothermal resources in the central segment of the Ethiopian Rift revealed by 3-D MT imaging” 16:40 Romain Corseri (University of Oslo, Norway) “Magnetotelluric image of a hyper-extended and serpentinized rift system"
October 30, 2024 at 1:49 PM
sasbrune.bsky.social
⚒️ How different are back-arc rifts from intra-continental rifts? ⚒️

Find out in our
#RiftAndRiftedMarginsSeminar
with Geoffroy Mohn, Helene-Sophie Hilbert, Armagan Kaykun
Monday, Sept. 9th, 4 pm CEST

Register: uni-potsdam.zoom-x.de/meeting/regi...

Past talks: www.youtube.com/@riftandrift...
16:00 Geoffroy Mohn (Cergy-Pontoise, France) “Breakup of marginal seas and differences from Atlantic-type margins” 16:20 Helene-Sophie Hilbert (GEOMAR Helmholtz Centre, Kiel, Germany) “From symmetric to asymmetric spreading – a seismic tomography study of the central Mariana Trough” 16:40 Armagan Kaykun (University of Toronto, Canada) “Structural evolution of the Black Sea Basin using sectioned computational models"
September 3, 2024 at 12:56 PM
sasbrune.bsky.social
⚒️ How do oceans and tectonics interact? ⚒️

Join our #RiftAndRiftedMarginsSeminar on "Rifting and sea level" with Lisa McNeill, Valentin Rime, Erica Lucas

Monday, July 1st, 4 pm CEST

Register: uni-potsdam.zoom.us/meeting/regi...

Past talks: www.youtube.com/@riftandrift...
16:00 Lisa McNeill (University of Southampton, UK) “High rates of Corinth Rift (Greece) extension and sea level interactions” 16:20 Valentin Rime (University of Fribourg, Switzerland) “Afar rifting and sea incursions” 16:40 Erica Lucas (McGill University, Australia) “Impact of regional-scale mantle structure beneath the West Antarctic Rift System on glacial isostatic adjustment”
June 25, 2024 at 12:03 PM
sasbrune.bsky.social
⚒️ What lies deep within the crust? ⚒️

Join our #RiftAndRiftedMarginsSeminar on "Scientific drilling at rifts and rifted margins" with Paul Olsen, Joann Stock, Anneleen Foubert

Monday, June 3rd, 4 pm CEST

Register: uni-potsdam.zoom.us/meeting/regi...

Past talks: www.youtube.com/@riftandrift...
16:00 Paul Olsen (Lamont-Doherty Earth Observatory, USA) “Drilling continental rift basins on the eastern North American margin” 16:20 Joann M. Stock (California Institute of Technology, USA), Sun Zhen (Chinese Academy of Sciences - Department of Marine Geology) “Drilling into the South China Sea” 16:40 Anneleen Foubert (Université de Fribourg, Switzerland) and ADD-ON Team “Afar Dallol Drilling: drilling in the Afar as key to unlock the complexity of rifts and rifted margins (ADD-ON)”
May 28, 2024 at 11:36 AM
sasbrune.bsky.social
Magma-poor rifting: initiation and processes ⚒️

Join our next #RiftAndRiftedMarginsSeminar with Rasheed Ajala, Anindita Samsu, Sudipta Tapan Sinha

Monday, April 8th, 4 pm CEST (Caution: now summer time!)

Register: uni-potsdam.zoom.us/meeting/regi...

Past talks: www.youtube.com/@riftandrift...
16:00 Erin Di Maggio (Penn State University, USA) “High resolution geologic mapping and tephrochronology to constrain rifting at the Ledi-Geraru paleontological site in Ethiopia” 16:20 Céline-Marie Vidal (University of Cambridge, UK) “Volcanic ash in the Rift, origins and applications” 16:40 Lindsay McHenry (UW Milwaukee, USA) “Olduvai basin and its often rift-controlled paleolake"
April 2, 2024 at 10:09 AM
sasbrune.bsky.social
Natural hydrogen - how much is generated in rifts and rifted margins? ⚒️

Find out in our next #RiftAndRiftedMarginsSeminar with Marta Pérez-Gussinyé, Frank Zwaan, Gabriel Pasquet

Monday, March 4th, 4pm CET

Register: uni-potsdam.zoom.us/meeting/regi...

Past talks: www.youtube.com/@riftandrift...
16:00 Marta Perez-Gussinye (MARUM, University of Bremen, Germany) “Hydrogen fluxes associated to mantle exhumation and serpentinization at North Atlantic magma-poor rifted margins” 16:20 Frank Zwaan (GFZ Potsdam, Germany) “Natural H2 potential in (inverted) rift basins as shown by numerical models” 16:40 Gabriel Pasquet (University of Pau, France) “Basalt alteration and natural hydrogen-geothermal synergies in the Asal-Ghoubbet rift, Republic of Djibouti"
February 27, 2024 at 7:46 AM
sasbrune.bsky.social
What is the state-of-the-art in numerical modelling of rift dynamics?

Find out in our next #RiftAndRiftedMarginsSeminar with Ritske Huismans, Tiphaine Larvet, Derek Neuharth

Monday, January 8th, 4pm CET

Register: uni-potsdam.zoom.us/meeting/regi...

Past talks: youtube.com/channel/UCES...

⚒️
January 8th: “Numerical modeling of extensional settings: latest developments” 16:00 Ritske Huismans (Bergen University, Norway) “Controls of tectonics and surface processes on rift architecture and fault linkage during continental rifting: insights from lithosphere-scale 3D coupled numerical models” 16:20 Tiphaine Larvet (ISTeP, Sorbonne Université, France) “Slab pull and continental breakup: implications for the South China Sea and the Cimmerian blocks” 16:40 Derek Neuharth (ETH Zurich, Switzerland) " Evolution of rift systems and their faults networks in response to surface processes "
January 3, 2024 at 8:48 AM
sasbrune.bsky.social
Volcanism during continental break-up generates amazing structures. Find out more in our next #RiftAndRiftedMarginsSeminar with

Laurent Geoffroy, Sverre Planke, John Millett

Monday, December 4th, 4pm CET

Register: uni-potsdam.zoom.us/meeting/regi...

Past talks: youtube.com/channel/UCES...
Topic: Seaward dipping reflectors Time: 4th December, 16:00 CET 16:00 Laurent Geoffroy (Université de Bretagne Occidentale/IUEM, France) “SDRs and the extent of continents in oceans” 16:20 Sverre Planke (CEED University of Oslo, Norway) “The nature of SDRs constrained by high-resolution 3D seismic and IODP X396 borehole data on the mid-Norwegian volcanic margin” 16:40 John Michael Millett (University of Aberdeen, UK) “Reservoir properties and CO2 storage potential of volcanic margin sequences: insights from IODP drilling of mid-Norway SDRs”
November 29, 2023 at 7:02 AM