Articles | Volume 10, issue 3
https://doi.org/10.5194/se-10-987-2019
https://doi.org/10.5194/se-10-987-2019
Research article
 | 
28 Jun 2019
Research article |  | 28 Jun 2019

Deformation of intrasalt competent layers in different modes of salt tectonics

Mark G. Rowan, Janos L. Urai, J. Carl Fiduk, and Peter A. Kukla

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Cited articles

Abe, S. and Urai, J. L.: Discrete element modeling of boudinage: insights on rock rheology, matrix flow, and evolution of geometry, J. Geophys. Res., 117, 12–21, https://doi.org/10.1029/2011JB008555, 2012. 
Abe, S., Urai, J. L., and Kettermann, M.: Fracture patterns in non-plane strain boudinage – insights from 3-D discrete element models, J. Geophys. Res., 118, 1304–1315, https://doi.org/10.1002/jgrb.50126, 2013. 
Albertz, M. and Ings, S. J.: Some consequences of mechanical stratification in basin-scale numerical models of passive-margin salt tectonics, in: Salt Tectonics, Sediments and Prospectivity, edited by: Alsop, G. I., Archer, S. G., Hartley, A. J., Grant, N. T., and Hodgkinson, R., Geol. Soc. London Spec. Publ., 363, 303–330, https://doi.org/10.1144/SP363.14, 2012. 
Albrecht, H., Hunsche, U., Plischke, I., and Schulze, O.: Mapping of the mechanical properties of a salt dome, Sixth Congress of the International Association of Engineering Geology (IAEG), 6–10 August, Amsterdam, the Netherlands, 1990. 
Allen, H., Jackson, C. A.-L., and Fraser, A. J.: Gravity-driven deformation of a youthful saline giant: the interplay between gliding and spreading in the Messinian basins of the Eastern Mediterranean, Petrol. Geosci., 22, 340–356, https://doi.org/10.1144/petgeo2016-034, 2016. 
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Short summary
Ancient evaporite sequences were deposited as interlayered rocksalt, other evaporites, and non-evaporite rocks that have enormous differences in strength. Whereas the ductile layers flow during deformation, strong layers are folded and/or torn apart, with the intrasalt deformation dependent on the mode and history of salt tectonics. This has important implications for accurately imaging and interpreting subsurface seismic data and for drilling wells through evaporite sequences.