从世界范畴来看,晚更新世以来气候变化的趋势是向着干旱发展。所以晚更新世末至现代的这次成盐期,不是偶然地在某一地区出现,而是受世界气候带的制约。但是,由于各地的具体条件不同,在成盐特征诸如蒸发岩出现的时间、成盐的强度、盐类矿物组合等方面,也必然有所差异。青藏高原的这次成盐作用,初步认为有以下的基本特征。 From the perspective of the world, the trend of climate change since the late Pleistocene is toward drought development. Therefore, the salt-forming period from the late Pleistocene to the modern did not happen by chance in one area but by the world climatic zone. However, due to the specific conditions of different places, there must be some differences in the characteristics of salt-forming such as the time of evaporite, the intensity of salt-formation and the combination of salt minerals. The salinization of the Qinghai-Tibet Plateau, initially considered the following basic characteristics.