什么叫活断层?“活断层”是现今还在活动的断层。在研究活断层中,对什么叫“活”有不同的看法。一种看法认为,地质时期从第三纪以来有活动的断层为活断层(大约距今六、七千万年的时间〕。另一种看法认为,距今三百万至二百万年的第四纪以来还活动着的断层叫活断层。还有一种看法认为,大约距今一万年的第四纪全新世以来活动着的断层叫活断层。特别是近来核电站的修建中,强调活断层的研究重点放在 What is an active fault? “Active fault” is a fault that is still active today. In studying the active fault, there is a different view of what is meant by “living”. According to one opinion, the active fault during the geological period of the Tertiary Period was a living fault (about 60 to 70 million years ago). Another view is that from 3 million to 2 million years ago Another fault that has been active since the Quaternary period is the active fault, and another view is that the fault that has been in operation since the Quaternary Holocene about 10,000 years ago is called the active fault, especially in the recent construction of nuclear power plants. The study of faults focuses on