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.
中期是地块的最终固结阶段，在此期间发生了褶皱变形，是高压变质作用的初期阶段；
The middle stage witnesses final consolidation of the massifs, their participation in fold deformations, which coincide with the initial stages of high P metamorphism.
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.
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