摘要
///Through comprehensive analysis on characteristics of coseismic surface ruptures and influencing factors on several trenching cases, the authors suggest micro-landforms such as depressions, basins, troughs, sag ponds, successive-offset channels, continuous scarp-derived deposit and multiple geomorphic surfaces are likely to be good trenching sites for paleoseismic studies on strike-slip faults. Multiple trenching or three-dimensional trenching should be the primary layout on strike-slip faults. Offsets of micro-landform across a fault, young stratigraphic units overlying on faulted units, locally distributed scarp-derived colluvial deposits, filled fissures,abrupt increases or decreases in displacement of different stratigraphic units on a fault, warping in different degrees, and multiple periodic paleo-sag ponds accumulation, all of these deformation evidences are good indicators for identifying paleoseismic events.