The term, Fracture Multiple Sets, refers to a collection of two or more sets of the same fracture type occurring together. Each fracture type set can, of course, be characterized by the geometric properties of their members similar to the isolated structure sets. Aside from the properties of each set, the intersection relationships among the sets and their formation sequences are important. Considering that this Knowledgebase focuses on four fracture element types, the four links below will guide you to the texts and illustrations on the multiple sets of these fracture types.