早第三纪

The Yinmawanshan gabbro in southern Liaodong Peninsula is one of the youngest plutons in Northeast China.

辽东半岛饮马湾山辉长岩体为早第三纪晚期的侵入岩体，是东北地区最年轻的镁铁质侵入体之一。

An important angiosperm flora was found in a sand-mudstone lens in Hanjiajing Formation of the Lower Oligocene from the basin, which changes the conditions that plant fossils of Palaeogene were seldom discovered in Northwest China, especially in Gansu Province.

在该盆地下渐新统韩家井组砂泥岩透镜体中一个重要被子植物化石群的发现，改变了我国西北地区尤其是甘肃省早第三纪晚期的植物化石几乎是空白的状况。

This paper presents an application of theory and method of classical sequence stratigraphy to research Biyang Paleogene fault-depressed lacustrine basin, combining terrigenous sequence geometry and dynamics.

本文从陆相层序几何学和陆相层序动力学两个全新的角度，辩证地将经典层序地层学原理和方法应用于早第三纪泌阳断陷湖盆中。

Biyang fault-depression experience three evolutional phase: Mesozoic pull apart, Paleogene rift. Neogene downwarp basins. So it has in turn three basin-fill sequences and responding tectonic sequences, which were specified by regional unconformity; their general sedimentary style respectively is assemblage of fluvial fan～flood lake depositional system, fluvial fan ～ fan delta ～ lacustrine ～ delta depositional system. and fluvial plain ～ sand mudstone flat depositional system.

泌阳断陷历经中生代小型拉分盆地、早第三纪裂陷盆地和晚第三纪坳陷盆地等三个盆地原型的演化、叠合过程，形成了三个盆地充填序列及其所对应的三个构造层序，其界面皆为区域性构造不整合面；沉积总体样式分别为冲积扇～洪水-漫湖沉积体系组合、冲积扇～扇三角洲～湖泊～三角洲沉积体系组合、冲积平原～砂-泥坪～滨浅湖沉积体系组合。

The abundant resources of continental oil and gas originated from continental oil-source rocks which are characterized by their wide distribution in space and full development in time, with four main oilgenerating periods, namely, the late Permian, late Triassic, early Cretaceous and Palaeogene.

这些生油岩在空间展布上具有广泛发育的特点，形成了晚二迭世、晚三迭世、早白垩世和早第三纪四个主要生油期。

The Paleogene tectonic framework in Bohai Bay was controlled by both Mesozoic sinistral strike slip and Paleogene extension resulted from diapiric intrusion of mantle.

中生代左行走滑和早第三纪伸展作用共同控制了渤海海域早第三纪的构造格局。

The RaoYang stripping and gliding nappes can be divided into different belts in north-south direction and different zones in east-west direction.

饶阳拆离滑覆体具有南北分带、东西分区的基本特征，其发生时间在早第三纪末和晚第三纪沉积之前，滑移方向主体为北西西向，滑移距离在6KM左右，地温场反映拆离滑覆构造发育区地温剃度低而稳定。

Accordingly, we start the thesis from two small oil fields of Beipu and Laoyemiao in Nanpu depression. Firstly, we analyze regional geology background of the area and find that its structure evolvement can be divided into three greatest stages: the formation and evolution of pre-tertiary basement, the lower-tertiary fault basin and the upper-tertiary depression basin.

因此本论文从南堡凹陷北堡和老爷庙两个小型油田入手，首先分析了研究区的区域地质背景，明确了其构造演化分为三大阶段：即前第三纪基底的形成与演化、早第三纪断陷盆地的形成与演化、晚第三纪坳陷盆地的形成与演化。

Since Eogene, amount of tectonic subsidence has a characteristics of becoming litthe gradually from south to north , depositional centre is migrated from south to north, volcanic activity is stronger in south and weaker in north during Kongdian stage, and inverse during Neogene.

自早第三纪以来，构造沉降量具有由南向北由大变小的特点，沉积中心也是由南向北迁移的，火山活动在孔店期时南强北弱，到上第三纪时则是北强南弱。

The thermal gradients of the depression decreased during the Cenozoic time. However, it decreased quickly in Eogene, but only changed a little during the Neogene period The thermal gradient was 540～500℃/km during the period of the Kongdian group deposition, 500～400℃/km during the period of Shahejie group, 400～385℃/km of Dongying group and 385～355℃/km during the Neogene.

研究结果表明，济阳坳陷新生代以来的古地温梯度是逐渐降低的，但在早第三纪时期下降的幅度较大，而在晚第三纪－第四纪则下降的幅度明显较小；济阳坳陷在孔店组沉积时期的地温梯度为540～500℃/km之间，沙河街沉积时期为500～400℃/km，东营组沉积时期为400～385℃/km，晚第三纪时期为385～355℃/km，第四纪以来基本未变。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。