It intruded Eocene sandstones.
它侵入始新世砂岩。
New specimens of Eocene bird Kievornis Averianov et al.
描述了始新世基辅鸟类新标本。
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。
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。
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。
Drawing illustrating the plants and animal life in the Eocene High Arctic.
始新世北极高地地区植物和动物生命的图示。
Whichever way you look at the Eocene enigma, it is bad news for life on Earth.
无论用何种途径来观察始新世温室的这个谜，都对地球上生命带来不好的消息。
The Paleogene series developed Eocene series and Oilgocene series in this basin.
该盆地古近系发育有始新统、渐新统两套地层层序。
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。
The other was a feathered skull from the Eocene (55m years ago) that had been unearthed in Denmark.
另一个是在丹麦发掘到的始新世（5500万年前）的一根羽骨。
Few or any anthropoids are known to have existed in Africa during this period, known as the Eocene epoch.
人们原先不知道在这个被称为“始新世”的时期，非洲有类人猿的存在。
Eocene lavas belong to high K Calc alkaline (HK CA) series and those of Miocene to shoshonite (SHO) series.
渐新世火山岩为高钾钙碱性系列，中新世岩石属于钾玄岩系。
Combining with volcanic activities, Eocene hypabyssal rocks, tonalite, intruded in Cretaceous volcanic strata.
伴随着火山活动，始新世英云闪长岩侵入白垩系火山岩地层。
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。
The discovery indicates that the upper part of the Relu Formation was formed in dry and hot climate in the Eocene.
该植物孢粉的发现肯定了热鲁组上部地层的形成时代为始新世，亦表明其形成于干旱较热的气候环境。
The trouble is that if the genetics researchers are right, these modern groups did not actually originate in the Eocene.
现在的问题是--如果遗传科研人员的论断正确无误,那么现存的哺乳动物群就不是起源于始新世时代了.
Many types of oncoids are well developed in the Middle Member of the Guanzhuang Formation of Eocene in Pingyi Basin.
平邑盆地下第三系官中段核形石较为发育，类型多样。
Oligocene a geological epoch in the Tertiary, between Eocene and Miocene, lasting from about 38 to 25 million years ago.
渐新世纪第三纪始新世与中新世之间的地质纪元，大约从三千八百万年持续到二千五百万年前的一段时间。
The new species of Scleropages from the Early Eocene of Hunan and Hubei, China is the first complete fossil of the genus.
产于湖北松滋和湖南湘乡早始新世地层中的中华金龙鱼是金龙鱼化石的首次发现。
Though the Cretaceous asteroid cleared the stage, mammals did not really get going until 10m years later, in the Eocene epoch.
尽管白垩纪时小行星撞击地球后为哺乳动物搭起了活动的舞台，但是哺乳动物真正大行其道是100万年以后的事情了，也就是在始新世时期。
The placement and orientation of these fossils also tells researchers about the conditions at Green River during the Eocene .
这些化石的形成的地点和方位同时也让研究者们知道在始新世的绿河的环境条件。
Any of various extinct ungulate mammals of the Eocene to Pleistocene epochs, having distinctive three-clawed, three-toed feet.
一种已灭绝的始新世和更新世的有蹄哺乳动物，其特征为有三爪，每爪有三趾。
The Chesapeake Bay region of southeastern Virginia is the site of an asteroid or comet impact that occurred during the Eocene.
维吉尼亚州东南部Chesapeake海湾地区是曾经在始新世被一颗小行星或彗星撞击的地点。
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。
The first spreading cycle resulted in the formation of Wenchang mudstone, Eocene, which is the important and main source rock of the basin.
第一扩张旋回中形成的始新统文昌组泥岩是珠江口盆地的主要烃源岩。
During late late Cretaceous-Eocene, volcanic island arc moved eastward and the east China Sea shelf basin was turned into a back-arc basin.
晚白垩世晚期—始新世，火山岛弧向东移动，东海陆架盆地变为弧后盆地。
The sediment was laid down during the Eocene period, a time when the waters off Antarctica were about 10 degrees warmer than they are today.
这些沉积物是在始新世时期沉积下来的，当时南极沿岸的水温比今天高10度左右。
The microorganisms had lain dormant since the Eocene epoch, a time when Australia split off from Antarctica and modern mammals first appeared.
自始新世（5300-3650万年前）开始，它们便沉睡在化石之中，在那个时代，澳洲板块刚刚与南极板块分离，而现代哺乳动物刚刚开始出现。
The main patterns of the convergent structure are the ramp type and the superimposed one. And their forming periods are Late Eocene Oligoecne.
会聚构造型式以对冲式及叠覆式为主要类型，形成时期在晚始新世—渐新世。
Gingerich believes the first cetaceans probably resembled anthracotheres, svelte hippo-like browsers that inhabited swampy lowlands in Eocene times.
金格里奇相信第一批鲸和沼泽地碳兽十分相似，一种生活在始新世时期沼泽低地里，形似河马的小型食草动物。
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