早更新世(early Pleistocene)是第四纪冰川更新世的第一个时期，由1932年国际第四纪会议确定。起讫时间尚有争论，距今约为2.43Ma～0.73Ma.（Ma,Million years Age,代表百万年以前）
...早更新世(early Pleistocene)是第四纪冰川更新世的第一个时期,由1932年国际第四纪会议确定。起讫时间尚有争论,距今约为2.43Ma～0.73Ma.
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The Peiku Co from the early Pleistocene - Holocene vegetation from coniferous forests - Woodland grassland - grasslands,from the humid climate to gradually develop in the direction of drought,reflecting the entire process,the formation of lakes→expansion→shrinkage.
佩枯错从早更新世—全新世植被由针叶林—疏林草原—草原,气候由湿润逐渐向干旱方向发展,反映了湖泊形成→扩张→萎缩的全过程。
参考来源 - 西藏腹地第四纪典型湖泊环境演变研究·2,447,543篇论文数据，部分数据来源于NoteExpress
上新世晚期，早更新世初期，第二排褶皱开始形成。
The second fold developed between late the Miocene and the initial stage of Early Pleistocene.
早更新世晚期，中更新世初期，第三排褶皱开始形成。
The third fold developed between late early Pleistocene and early Middle Pleistocene.
早更新世，由于长期风华剥蚀，西湖所在地区形成一宽古。
In the early pleistocene Epoch, due to long-term weathering and denudation, the area where West Lake was located developed into a broad valley.
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