关键词: 航片判读, 变位地形, 变位基准, 可信度

Abstract: The basis for interpretation of active faults in aerial photographs is the fault geomor-phology. The key to determining the active faults in aerial photographs is to find out the displaced landform which could not he formed by exogenetic force in nature. The confidence of the interpreted displaced landforms is of three levels. The scarps, their strike is perpendicular to the river's current diection, their dip opposite to the direction and their dip reverse to the slope, are the displaced landforms of confidence level Ⅰ. We must pay attention to the linear landforms when we determine direction and displacement amount of strike-slip fault. We can determine the poriod and order of fault activity from different datum and displacement amount of the displaced landforms. In this article 14 examples of the interpreted active faults in China and Japan are described for explaining the dislplaced landforms in aerial photographs.

Key words: Aerophoto interpretation, Displaced landform, Dislocated datum, Confidence level