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Crossing faults, KSEPL Rijswijk: sandbox experiment

Sandbox experiment with crossing faults carried out by Bill Horsfield at KSEPL, Rijswijk, ezValidator, SlokkertSandbox experiment with crossing faults carried out by Bill Horsfield at KSEPL, Rijswijk, ezValidator, SlokkertSandbox experiment with crossing faults carried out by Bill Horsfield at KSEPL, Rijswijk, ezValidator, SlokkertSandbox experiment with crossing faults carried out by Bill Horsfield at KSEPL, Rijswijk, ezValidator, SlokkertSandbox experiment with crossing faults carried out by Bill Horsfield at KSEPL, Rijswijk, ezValidator, SlokkertSandbox experiment with crossing faults carried out by Bill Horsfield at KSEPL, Rijswijk, ezValidator, SlokkertSandbox experiment with crossing faults carried out by Bill Horsfield at KSEPL, Rijswijk, ezValidator, SlokkertSandbox experiment with crossing faults carried out by Bill Horsfield at KSEPL, Rijswijk, ezValidator, SlokkertSandbox experiment with crossing faults carried out by Bill Horsfield at KSEPL, Rijswijk, ezValidator, SlokkertSandbox experiment with crossing faults carried out by Bill Horsfield at KSEPL, Rijswijk, ezValidator, Slokkert

Shell lab sandbox experiment (~1980) with simultaneous conjugate crossing faults (left, going down) and result unfaulted by ezValidator (right, going up).

 

Data from Nieuwland, D.A. & M. Nijman (2001): The atlas of structural geometry: a digital collection of 25 years of analogue modelling. Netherlands Journal of Geosciences 80 (2): 59-60 (CD).

 

The experiment shows that both faults are active at the same time. The unfaulting shows an overlap at the point where the two faults intersect. In the experiment, sand seems to ‘disappear’ from this intersection.

Experiment starts

(side  supports move out)

 

Experiment step 1

 

Experiment step 2

 

Experiment step 3

 

Experiment ends

 

Unfaulting starts

Unfaulting 25%

Unfaulting 50%

Unfaulting 75%

Fully unfaulted