And third, there is geological evidence for plant extinctions in the Eocene. 第三，我們已經收集到始新世時代植物滅絕的地質證據。
In the northwest Pacific domain, the folding age is from Late Jurassic to Middle Eocene, and in the Tethys domain it is between Middle and Late Eocene. 主要褶皺時代很晚，在南北太平洋大地構造域是晚侏羅世至中始新世，在特提斯大地構造域是中晚始新世之交。
The funnel-shaped self-potential curve of the Eocene sands is well marked. 始新統砂層的漏斗形自然電位曲線形態很明顯。
The first spreading cycle resulted in the formation of Wenchang mudstone, Eocene,which is the important and main source rock of the basin. 第一擴張旋迴中形成的始新統文昌組泥岩是珠江口盆地的主要烴源岩。
