Oligocene

英[ɔˈliɡəusi:n]
美[ˈɑlɪɡoˌsin, ˈolɪ-]

基本释义

n.
渐新世,渐新统
adj.
渐新世的,渐新统的

实用例句

Oligocene erosion had truncated the sediments draped over the dome.

覆盖于穹丘上的沉积岩为渐新世侵蚀所截削.

辞典例句

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.

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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 ).

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The differences between Oligocene series in the east and west are demonstrated.

指出了盆地东部和西部渐新统存在的差异.

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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.

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Venezuela, oil is produced from lenticular sandstone beds of the Oligocene oficina Formation.

委内瑞拉奥斯特拉油田的产油层,为渐新世奥菲西那组透镜状砂岩层.

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The eastern China Continent has entered into the stage of rifting continental margin since Oligocene.

自渐新世,中国东部大陆进入了张裂的大陆边缘阶段.

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英英释义

Noun
  • 1. from 40 million to 25 million years ago; appearance of sabertoothed cats

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