关键词: 盐湖演化, 青藏高原, 蒸发岩, 盐湖带, 柴达木, 石盐, 藏北, 盐类物质, 盐类沉积, 成盐期

Abstract: The eolian lakes are well developed on the Qinghai-Xizang plateau. From thePliocene period up to the present, there have been two periods of mineralization. Thefirst one took place in the Pliocene period, in which the minerals, such as gypsum, glau-ber salt and halite were major products. The second period took place from the latePleistocene up to the present, during which boron, lithiem, potasium were highly concen-trated -one of the most significant characteristics of this period. The saline lakeson the Qinghai-Xizang Plateau can be classfied into two zones: the sulfate-chloride typein northern Xizang. Some of the saline lakes in this district developed on the basis ofthe Neogene fossil lakes, while others are newly grown in the Quaternary. Most of themare tectonic lakes. Rocks and hot springs are the main sources of the saliue lake mineral.