The second fold developed between late the Miocene and the initial stage of Early Pleistocene.

上新世晚期，早更新世初期，第二排褶皱开始形成。

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Phase One, the million and a half years ago, in the early--in the late--Miocene and early Pleistocene phases, there was shift where people were less likely to be just going out and gathering foods from every place they could find it.

第一阶段,一百五十万年前,在整个中新世以及更新世的早期,情况开始转变,人们不光靠,出门四处搜集食物

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