The last glacial period is divided into two stadial stages with an interstadial stage.Evolution of lakes of the source area during the Quaternary went through three stages.
黄河源区的冰期
划
为3期，即末
冰期、倒数
冰期、倒数三冰期，末冰期
为2个冰阶。
The last glacial period is divided into two stadial stages with an interstadial stage.Evolution of lakes of the source area during the Quaternary went through three stages.
黄河源区的冰期划为3期，即末冰期、倒数冰期、倒数三冰期，末冰期为2个冰阶。
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