Aseismic Creep and Crustal Deformation of Large Normal Faults: Precise Leveling Across Teton Fault, Wyoming

9303913这个项目将重新测量一条横跨怀俄明州蒂顿断层的精确水平线，以描述一个主要正断层的地震间活动性，并将该测量的结果与1988年、1989年和1991年对该水平线的前三次测量结果进行比较，以确定我们在前三次测量中观察到的无地震位移是否仍在继续。这项研究的意义在于，它将表明，至少在美国，倾滑断层上以前未知的无地震垂直蠕变是否发生在北美西部的一条主干活动断层上。如果真的发生了这种情况，那么这一结论将影响对从倾角滑动断层，特别是沿盆地和山脉断层的沟槽挖掘所推断的古地震滑动的解释。

9303913 Sylvester, Arthur G. This project is to resurvey a precise level line across the Teton Fault, Wyoming, to characterize the interseismic activity of a major normal fault, to compare the results of that survey with previous surveys of the line in 1988, 1989, and 1991 to determine if aseismic displacement we observed in the three previous surveys is still continuing. The significance of the research is that it will show if aseismic vertical creep, previously unknown on dip slip faults, at least in the United States, is occurring along one of the master, active faults in western North America. If it is occurring, then that conclusion would affect interpretations of paleoseismic slip inferred from trench excavations across dip slip faults, especially along Basin and Range faults.