sedimentary basins | Rift basins - Structural aspects - | ||||||||||||||
Classical example: Viking Graben in the North Sea : Triassic and Jurassic sedimentary strata have been rotated between subparallel high-angle listric faults. The faults can be traced deep into the crust and are not bounded by a detachment surface. At the time when these faults formed they reached a depth at which the crust was hot enough to deform by ductile flow, causing sub-horizontal reflections in the lower crust. |
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Present day section | |||||||||||||
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Backstripping of post-rift stratigraphy | |||||||||||||||
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Bathymetry at a key point in the syn-rift stratigraphy | |||||||||||||||
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© Geological Survey of Denmark & Greenland | |||||||||||||||
© Alastair Beach Associate | |||||||||||||||