小江断裂沿线低阶地面热释光年代学标尺的研究

用ＴＬ测年技术测定了沿小江断裂发育的主要河流低阶地沉积物的堆积年龄,结合毗邻地区同级阶地沉积物的堆积年代,估算了研究区低阶地面的形成时代,为建立研究区最新气候,构造事件的序列提供年代学依据。

Research on thermoluminescence chronological rod of lower terraces surface along Xiaojiang Fault Zone

The dating of terrace deposits, especially the terrace surface, is usually a chronological foundation, on which series of regional climate and tectonic events can be established. In this paper, the deposit ages of lower terrace sediments along the major rivers were determined by TL dating along Xiaojiang fault zone. Comparing with the deposit age of the same level terrace sediment in the vicinity, the formed ages of the lower terraces surface were estimated, thus providing a chronological evidence for establishing the series of the recent clanate and tectonic events in the region concerned.