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川中北白垩系红层下部咸水的存在,以及它对上部淡水的影响,前人在该区的工作中比较重视。但对咸水分布、埋藏、咸淡水界面和形成条件等方面的研究和看法不尽一致。笔者根据近几年接触到的部分实际资料,认为这些资料反映该区白垩系红层咸水分布有一定规律可寻。现根据早白垩世沉积环境的推断,对咸水水文地质特征和形成条件作初步探讨。
The existence of salt water in the lower part of the Cretaceous red beds in central Sichuan Basin and its impact on the upper fresh water have been paid more attention by our predecessors in the work of this area. However, research and opinions on salt water distribution, burial, brackish water interface and formation conditions are not consistent. According to some actual data that the author has come into contact with in recent years, the author thinks that these data show that there is a certain rule that the distribution of salt water in the Cretaceous red beds in this area can be found. Based on the sedimentary environment of Early Cretaceous, the hydrogeological features and formation conditions of saltwater are discussed.