17:15 〜 18:45
[SCG55-P05] Slip-angle-based Existing Probability of Triple Junctions
キーワード：plate boundary, triple junction, slip angle
Triple junctions have been discussed qualitatively and locally. In this study, however, I discuss this quantitatively and globally. A velocity vector of a plate relative to the opposing plate has its unique magnitude and direction. For all the triple junctions, I pick up the direction (slip angle) of the adjacent plate boundaries and develop them into a virtual three-dimensional space.
Plate boundaries are classified into three types: divergent, convergent, and strike-slip. Then, triple junctions, which are combinations of three plate boundaries, are classified into 10 types. The aforesaid 3D space is divided into 10 domains, where the domains are allocated to the respective type of triple junction.
In the spatial distribution of triple junctions, there were no conspicuous clusters whose data were similar enough to prompt grouping. However, there were large variations in their density. Furthermore, the surprising result was that there were many triple junctions of the type that was generally said to be rare, and there were fewer triple junctions of the type that was said to be common.
Plate boundaries are classified into three types: divergent, convergent, and strike-slip. Then, triple junctions, which are combinations of three plate boundaries, are classified into 10 types. The aforesaid 3D space is divided into 10 domains, where the domains are allocated to the respective type of triple junction.
In the spatial distribution of triple junctions, there were no conspicuous clusters whose data were similar enough to prompt grouping. However, there were large variations in their density. Furthermore, the surprising result was that there were many triple junctions of the type that was generally said to be rare, and there were fewer triple junctions of the type that was said to be common.