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诚然,中国陆相第四系下限问题十分复杂。它不但涉及许多的划分原则和标志,而且牵涉的学科很广。因此,对第四系下限问题的讨论,遂成为我国近代第四纪地质学及其相关学科的中心议题之一。人们往往从各自不同的学科领域出发,提出划分第四系下限的原则、标志和建议。从而推动了这一重要的研究课题,日益深入地向前发展。
It is true that the issue of the lower limit of China’s terrestrial Quaternary system is very complicated. It involves not only a lot of dividing principles and symbols, but also a wide range of subjects involved. Therefore, the discussion of the lower limit of the Quaternary system became one of the central topics of Quaternary geology in modern China and its related disciplines. People tend to proceed from their different disciplines and put forward the principles, markings and suggestions for dividing the lower limit of the Quaternary system. Thus pushing forward this important research topic and moving forward more and more deeply.