Rosette Applications

The rosette conveys less information than a full stereonet since one dimension is removed from the diagram. In cases where the planes being considered form essentially two dimensional geometry (prismatic wedges, for example) the third dimension may often overcomplicate the problem. A horizontal rosette diagram may, for example, assist in blast hole design for a vertical bench where vertical joint sets impact on fragmentation. A vertical rosette oriented perpendicular to the axis of a long topsill or tunnel may simplify wedge support design where the structure parallels the excavation. A vertical rosette which cuts a section through a slope under investigation can be used to perform quick sliding or toppling analysis where the structure strikes parallel to the slope face.

From a visualization point of view and for conveying structural data to individuals unfamiliar with stereographic projection, rosettes may be more appropriate when the structural nature of the rock is simple enough to warrant 2D treatment.