始新世

They are related to the bowfin and date back to the Eocene Epoch.

与弓鳍鱼近缘，在始新世就生活于欧洲和北美。

I am on an Oligocene beach, an Eocene beach, a Cretaceous beach -- the scene is the same.

我正在渐新统的海滩上，或在始新世的海滩上，或在白垩纪的海滩上——场景不变。

The results showed that the tectonic movement was relatively weak and the subsidence rate was minimal during sedimentary stage of the Kumugeliemu Group in age of Paleocene to Eocene.

平衡剖面分析、生长地层识别和重点井沉降史的数值模拟表明：古新-始新世库姆格列木群沉积期间构造活动微弱并沉降缓慢。

Variations of radiolarian abundance, biogenic opal, organic carbon and grain size in this core indicate t...

该柱放射虫丰度、生源蛋白石和有机碳含量、粒度的分析显示，大约在氧同位素11、9～8.4、5～3和1期，高的放射虫总丰度、第四纪常见种丰度和始新世-渐新世种丰度大致对应于高的中值粒径和平均粒径，以及大约氧同位素5期以来增加的有机碳含量，表明此期间贸易风增强，搬运的陆源颗粒增大，北赤道洋流加强，导致上升流增强，表层水生产力提高，同时，南极底层流的活动也加强。

These intervals mainly include: the Paleocene-Eocene Thermal Maximum (PETM,~55 Ma) and Oceanic Arioxic Events in the late early Aptian (OAE1a, Selli Level,~120 Ma) and at the Cenomanian-Turonian Boundary (OAE2, Bonarelli Level,~93.5 Ma).

这些气候事件主要包括：古新世－始新世最热事件(PETM，~55Ma BP)、早阿普第晚期和森诺曼－土仑界线的大洋缺氧事件(OAE1a，~120Ma；OAE2，~93.5Ma BP)。

Any of various extinct herbivorous hoof ed mammals of the genus Brontotherium and related genera,of the Eocene and Oligocene epochs,resembling the rhinoceros.

雷兽类一种已绝迹的雷兽属和其它相关属类的有蹄食草哺乳动物，生长于始新世和渐新世，类似于犀牛

According to the wide development of the typical warm-phase salt minerals such as primary glauberite and its thin bed in the Qianjiang Formation, it may be inferred that the dry palaeoclimate in the drainage area of the Jianghan Basin during the Late Eocene to Early Oligocene was of warm-dry type, rather than of cold-dry type.

根据潜江组中典型暖相盐类矿物原生钙芒硝及其薄层的广泛发育，可以推断江汉盆地区域在晚始新世－早渐新世潜江组沉积期间，所出现的干旱古气候属于暖旱型而不是寒旱型。

There is a rich manganese micronodules' layer in the bottom of metalliferous claystone at the end of Eocene in central eastern Pacific according to the samples from site 573 of DSDP.

深海钻探573B孔始新世末与渐新世初地层界线处有一层含金属黏土，其底部有一微锰结核富集层。

The factors responsible for the gas richness in offshore Bohai are represen ted as follows:The thicker deposition sediments,it made the main source rock-Eoc ene Shahejie Formation reach overmature to generate gas;there is huge thickness of Oligocene source rock-Dongying Formation;there are strong Tertiary tectonic m ovements and high heat-flow in the offshore.

海域天然气比陆上富集的主要因素表现在：沉积厚度大，使得盆地内主要烃源岩始新世沙河街组达到高成熟生气阶段；存在巨厚的渐新世东营组烃源岩；具有较强的晚期构造运动和较高的热流值，在浅层也有天然气聚集的领域。

The late CretaceousEocene deformation in Huahai area mainly occurs as northwesttrending synclines and anticlines, the top of which are eroded to different degrees.

花海地区的晚白垩世-始新世变形主要表现为NW向的向斜和背斜，顶部遭受了不同程度的剥蚀。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失