eocene

There are four hydrocarbon source rocks, Palaeocene, Eocene, Oligocene and Miocene.

西湖凹陷发育古新统 、 始新统 、 渐新统及中新统四大烃源岩系.

The funnel-shaped self-potential curve of the Eocene sands is well marked.

始新统砂层的 漏斗形 自然电位曲线形态很明显.

Second, it was eroded over 1000 meters during elevating move — ment later Eocene.

其次是区内始新世末期抬升运动,致使始新统及以下老地层受剥蚀,仅始新统最大剥蚀量达1000m, 这是盆地内绝无仅有的.

These showed an evolution of increasing diversity through to the Eocene.

一直到始新世,生物多样性都在不断地提高.

Maoxing block saliferous strata are mainly in 4 th Member, Funing Formation , Eocene Series.

茅兴块段含盐系地层主要为始新统阜宁组四段.

In late Eocene-Oligocene, that is red coarse sediment.

始新世晚期 — 渐新世, 为一套红色粗碎屑沉积.

Paleogene Oligocene Linhe formation ( E _ 3 J ) and Eocene Wulate formation ( E _ 2 wl ).

下第三系渐新统临河组 ( E_3l ),始新统乌拉特组 ( E_2wl ).

It intruded Eocene sandstones.

它侵入始新世砂岩.

The unconformity between the Eocene and the Lower Cretaceous is common in Jiuquan basin.

酒泉盆地普遍发育了始新统与下白垩统之间的不整合.