Articles | Volume 12, issue 8
https://doi.org/10.5194/se-12-1987-2021
https://doi.org/10.5194/se-12-1987-2021
Method article
 | 
30 Aug 2021
Method article |  | 30 Aug 2021

Contribution of gravity gliding in salt-bearing rift basins – a new experimental setup for simulating salt tectonics under the influence of sub-salt extension and tilting

Michael Warsitzka, Prokop Závada, Fabian Jähne-Klingberg, and Piotr Krzywiec

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Cited articles

Adam, J., Urai, J. L., Wieneke, B., Oncken, O., Pfeiffer, K., Kukowski, N., Lohrmann, J., Hoth, S., Van der Zee, W., and Schmatz, J.: Shear localisation and strain distribution during tectonic faulting – new insights from granular-flow experiments and high-resolution optical image correlation techniques, J. Struct. Geol., 27, 283–301, https://doi.org/10.1016/j.jsg.2004.08.008, 2005. a, b, c
Adam, J., Ge, Z., and Sanchez, M.: Post-rift salt tectonic evolution and key control factors of the Jequitinhonha deepwater fold belt, central Brazil passive margin: Insights from scaled physical experiments, Mar. Pet. Geol., 37, 70–100, https://doi.org/10.1016/j.marpetgeo.2012.06.008, 2012. a
Ahlrichs, N., Hübscher, C., Noack, V., Schnabel, M., Damm, V., and Krawczyk, C. M.: Structural evolution at the northeast North German Basin margin: From initial Triassic salt movement to Late Cretaceous-Cenozoic remobilization, Tectonics, 39, e2019TC005927, https://doi.org/10.1029/2019TC005927, 2020. a
Allen, J. and Beaumont, C.: Impact of inconsistent density scaling on physical analogue models of continental margin scale salt tectonics, J. Geophys. Res.-Sol. Ea., 117, B08103, https://doi.org/10.1029/2012JB009227, 2012. a, b
Allen, M. R., Griffiths, P. A., Craig, J., Fitches, W. R., and Whittington, R. J.: Halokinetic initiation of Mesozoic tectonics in the southern North Sea: a regional model, Geol. Mag., 131, 559–561, https://doi.org/10.1017/S0016756800012164, 1994. a, b
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Short summary
A new analogue modelling approach was used to simulate the influence of tectonic extension and tilting of the basin floor on salt tectonics in rift basins. Our results show that downward salt flow and gravity gliding takes place if the flanks of the rift basin are tilted. Thus, extension occurs at the basin margins, which is compensated for by reduced extension and later by shortening in the graben centre. These outcomes improve the reconstruction of salt-related structures in rift basins.