珠江三角洲断裂构造最新活动性研究

A STUDY ON THE NEOTECTONICS OF THE FAULTS IN THE PEARL RIVER DELTA AREA

根据在珠江三角洲及其周围地区测得的热释光年龄和第四系沉积物的分布等资料，分析讨论了断裂的最新活动性。自晚更新世以来，陈三角洲外围几条主要的北东向断裂的局部地段以外，基本上处于比较稳定的状态。晚更新世—全新世早期有过明显活动的断裂有狮子洋东西两侧的北西向断裂，近南北向的崖门断裂和北东向的古劳—广州断裂。近东西向的瘦狗岭断裂在全新世亦有过活动。

According to the data on the TL age tests and the distribution of the Quaternary sedimentary deposit, the neotectonics of the faults in the Pearl River Delta area are discussed in the paper. Since the late Pleistocene epoch, the main faults in striking NE were relatively stable except some striking NE faults. It is the faults besides the Shi Zi Yang, the Ya Men fault and Ku Lao-Guang Zhou fault, which are active in the late Pleistocene and the early Holocene.