古新世晚期由于太平洋板块洋脊俯冲，日本海(西部)第一次拉张。
Due to the subduction of Pacific Plate at late Palaeocene, the western part of Japan Sea was pulled-apart.
更新世晚期。由于新构造的差异升降，旱峡成为西江在这一带第一次改道的中期古河道。
Due to the differential neo-tectonic lift and fall at Late Pleistocene Epoch, Xijiang River changed its course for the first time in the Dry Gorge.
Santee海岸储藏岩心是从加州南部的查尔斯顿的545英尺深的钻井中采集的，代表白垩纪晚期、古新世、始新世和第四纪的沉积物。
The Santee Coastal Reserve core, a 545 ft deep borehole in northeastern Charleston County, South Carolina, recovered sediments of Late Cretaceous, Paleocene, Eocene, and Quaternary age.
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