Oligocene

1. Produced in Asia, Eastern Europe Oligocene .: 产于亚洲、欧洲东部渐新统。

2. The samples are from Oligocene, Miocene and Pliocene strata.: 样品的地层年代介于渐新世和上新世之间。

3. Beibu Wan Basin was a lake in the middle Eocence-Lower Oligocene.: 北部湾盆地在中始新世至早渐新世是一个湖泊。

4. Late Oligocene and the Ulunguhe Fm. Early Eocene to Early Oligocene.: 乌伦古河组——早始新世至早渐新世。

5. The oil shale mainly occurs in the Eocene-Oligocene Youganwo Formation.: 油页岩主要赋存于始新渐新统油柑窝组。

6. 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。

7. As in the Oligocene before it, grasslands continued to expand and forests to dwindle in extent.: 在先前的渐新世，草地的面积增大，森林的面积减少。

8. 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。

9. Quercoidites - Saliaxipollenites- Fraxinoipollenits assemblage, which may belong to Late Eocene-Early Oligocene.: 栎粉属-柳粉属-粉属组合，属晚始新世-早渐新世。

10. The primary section of the formation is unfossiliferous. It remains uncertain whether its geological age is Eocene or Oligocene.: 本文证实它是西露天组的一部分，是西露天组上部地层的相变，其时代应和西露天组相同。

11. Oils currently discovered in the lower Oligocene reservoirs in Gas Hure are mainly low mature oil, with rare immature and mature oils.: 尕斯库勒渐新统下部油藏中，目前找到的原油主要为低熟油，未熟油与成熟油发现不多。

12. Inclusion data shows that the migration of petroleum in the basin initiated from the Late Oligocene to the Early Miocene, up to the Quaternary.: 包裹体等分析表明，盆地油气运移始于晚渐新世—早中新世，延续至第四纪。

13. The high relative abundance of the fossil planktonic algae indicates the high primary surface productivity of the palaeo-lake within the Oligocene.: 文昌组浮游藻类相对丰度高，表明始新世珠江口古湖的表层水初始生产力高。

14. It peaked in the Oligocene Epoch around 34 million years ago in Eurasia, and again in the Miocene Epoch about 10 million years ago in Eurasia and Africa.: 而在大约3千4百万年前的渐新世的欧亚大陆上达到顶峰，在大约1千万年前中新世的欧亚大陆和非洲大陆又再次达到顶峰。

15. This study notes that no reliable Late Oligocene to Miocene nannofossil markers were found in these 2 crusts. Furthermore, sedimentation hiatus was observed.: 研究注意到在2个结壳中都没有发现可信的晚渐新世到中新世的化石记录，在个别层位之间存在着沉积间断。

16. There are at least three reservoir cases in deepwater: Eocene terrestrial formation, low Oligocene transitional formation and Pliocene and above Marine deepwater fans.: 深水区储层至少有三套，始新世陆相地层、下渐新统海陆过渡相地层和上新统及其以上海相深水扇。

17. The middle Jurassic Yeba formation volcanics, Paleocene biotite granite porphyry, Miocene quartz monzonite and Oligocene granite porphyry could be found in the ore field.: 矿区出露中朱罗统叶巴组火山次火山沉积岩、古新世黑云母花岗斑岩、中新世二长石英斑岩以及渐新世花岗斑岩。

18. During the period from Late Oligocene to Middle Miocene, the basin changed from rifting to depression, and the depositional area continued to expand in the Marine environment.: 晚渐新世—中中新世，盆地逐渐由断陷转为断拗，沉积范围不断扩大，整体处于海相沉积环境。

19. The sandstones of Zhujiang and Zhuhai formations, which were formed during the Late Oligocene and Early Pliocene, are major reservoir for hydrocarbon in Pearl River Mouth Basin.: 珠江口盆地晚渐新世至早中新世所形成的珠江组和珠海组是盆地内烃类的重要储集层，在珠三坳陷中珠江组砂岩比珠海组的更为重要。

20. The massive changes of the kinematic pattern occurred roughly between the Eocene and Oligocene epochs, which is in accordance with the great reorganization in global kinematics and dynamics.: 运动学模式发生巨大转变的时期，大致在始新世与渐新世之间，这与全球运动学和动力学发生的重大改组的时间相一致。

21. The uplifting, right-lateral strike-slip shearing, tilting and southward shearing of the Altai Mountains in Xinjiang have affected, since Oligocene, the drainage systems evolution and development.: 认为由北东向南西的掀斜隆升和右行走滑剪切作用是欧亚大陆阿尔泰山脉西南麓隆升的主要机制。

22. The uplifting, right-lateral strike-slip shearing, tilting and southward shearing of the Altai Mountains in Xinjiang have affected, since Oligocene, the drainage systems evolution and development.: 认为由北东向南西的掀斜隆升和右行走滑剪切作用是欧亚大陆阿尔泰山脉西南麓隆升的主要机制。

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