白垩纪

Jurassic age intraformational shales and claystones and Cretaceous regional claystones seal comprise the reservoirs.

在侏罗纪时期形成的页岩与泥岩以及在白垩纪时期形成的泥岩密封共同构成蓄水池的组成物质。

Large carnivorous bipedal dinosaur having enormous teeth with knifelike serrations; may have been a scavenger rather than an active predator; Upper Cretaceous; North America.

大型食肉两足恐龙，巨大的牙齿上有刀一样的锯齿；可能算是食腐动物更胜于一个主动的食肉动物；上白垩纪；北美洲。

In the Jurassic and Cretaceous, generally it was also the shelf sea, but there were lacustrine and lagoonal environments in different parts of the basin.

侏罗纪－白垩纪在总的浅海陆棚环境下，盆地不同地区也形成了湖泊和潟湖环境。

Longshan complex is located at the junction of Qinling and Qilian Orogen, and mainly distributed in Longshan Mountain, the west of Longxian County, which is separated from the Huluhe complex by the Baoping-Shanmen Fault to south, and connected with the Liupanshan Basin by the sub-fault to north. The upper magma is so extensive in this area that only Longshan complex is left as lentoid.

陇山杂岩地处秦岭—祁连造山带的结合部位，主体分布于陇县以西陇山山脉内，南以保平—山门韧性断裂带与葫芦河群相隔，向北与六盘山白垩纪沉积盆地以基底断层形式相接触，被后期火山岩体吞没，呈不连续透镜体状展布。

This paper has firstly identified these genetic units on shore beach-shore face、longshore zone、 longshore sands、erosional channel、leveed channel、turbidite lobes、turbidite sheet、slump、debris flow、 density-modified grain flow etc; At the same time, and points out that the lake of Cretaceous is open-type fresh water lake.

2首次系统确定滨滩-滨面、沿岸带、沿岸沙坝、侵蚀水道、有堤水道、浊积叶状体、席状浊积、滑塌体、碎屑流、密度改正颗粒流等成因单元。同时指出白垩纪湖泊为开放型淡水湖。

The source of mafic dikes are mixed with depleted mantle and enrichment mantle, but the contents of the former is more than that of the later.

本期的基性岩脉微量元素含量、MORB标准化模式和同位素与前面白垩纪的基性岩脉明显不同，软流圈参与其源区明显增多。

Many species of Magnoliaceae were widely distributed in the Northern Hemisphere, such as Asia, Europe and North America while there was no fossil record in Africa and Oceania since Cretaceous.

自白垩纪以来，木兰科的许多种广泛发生于北半球，如亚洲、欧洲及北美等地，但非洲和大洋洲至今尚未发现木兰科的化石记录。

Abundance of salt-alkaline megatherm Classopollis-Ephedripites assemblage in a limited time illustrates a short duration of dry hot climate by latest Cretaceous. Such extreme climatic change and ecologic overturn are possible causes of the dinosaur extinction in the study area. Other factors, such as asteroid impact and large volcanic eruption triggering global mass extinction caused the regional climate change.

嘉荫群上部渔亮子组中膏岩层和耐高温、抗盐碱的克拉梭粉-麻黄粉组合在短时间内的大量出现，说明晚白垩世末期出现有短暂的干热气候，这种气候的突然转变以及伴随的生态系统的紊乱可能是嘉荫地区恐龙大量死亡的重要原因，但不排除诸如天外星体碰撞地球、大规模火山喷发等引发白垩纪末恐龙全球灭绝的因素，后者更可能是引起气候变化的直接因素。

It can be concluded that: First,primary deposit and placer deposit are two main deposits in this origin;Second,the primary deposit formed at hydrothermal stage and mesothermal stage between Presinian and Cretaceous;Third,the feature of ore body is wide and scattered on distributing,small on scale;Four,the storage capacity of the crystal is very abundant,its quality is fine,depth of burial is s.

通过对江苏东海区域成矿地质条件以及含晶石英脉成群成带分布规律的研究，得出以下结论：①该区水晶矿床为原生矿、砂矿两种类型；②水晶原生矿形成于前震旦纪以后到白垩纪以前的高、中温热液期；③矿体具分布广、规模小、分布散等特点；④东海水晶储量丰富、品位极高、埋藏浅，具有很好的开发利用前景。

Stegoceras（Ornithischia,Marginocephalia,Pachycephalosauria）,Late Cretaceous,up to 3m

剑角龙（鸟臀目，头饰龙亚目，肿头龙类），白垩纪晚期，体长可达3米。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。