The formation of open fractures in an analogue model (Structural Geology)

An experiment with pure gypsum powder to test the applicability of this powder for the formation of open fractures.

This movie is taken from the MSC-thesis of Heijn van Gent. See for more information: van Gent, H. W., Holland, M., Urai, J. L. & Loosveld, R. 2010. Evolution of fault zones in carbonates with mechanical stratigraphy - insights from scale models using layered cohesive powder. Journal of Structural Geology - Special publication: Faulting and fracturing of carbonate rocks: New insights into deformation mechanisms, petrophysics and fluid flow properties 32 (9), 1375-1391. http://dx.doi.org/10.1016/j.jsg.2009.05.006

Category:

Science & Technology

Tags:

• Fault open fractures
• analogue model
• structural geology
• Heijn van Gent

[nickoswoos]

to what extent will dissolution via groundwater entering the fractures have of the stresses of the fractures? just curious

[StrucGeology]

@nickoswoos That would depend on the rock type being modelled. In the case of basalts the effect of will be minimal, but when carbonates are modelled, the effect could be considerable. One additional effect is the filling of fractures by calstic sediments, washed in by surface flow and rain water. This closes the fractures with clay again. I tried to include some links to papers, but that does not work. Visit our website for more information!

[nickoswoos]

@StrucGeology thanks - il have a scan of the papers.