陨石

But Zhang Feng, who is the world-famed founder of static electricity in space, thought this phenomenon is warning signs of earthquakes, hurricane and so on caused by the extreme variation of static electricity in space.

然而，被誉为世界空间静电领域"奠基人"的张丰认为，这是发生地震、飓风等灾害的前兆，这是暗物质变为亮物质导致了强光和巨响，而非陨石坠地。

Their research offers an explanation for the cause of one of the most momentous events in the history of life on earth, a 10 kilometre-wide meteorite striking Mexico's Yucatan Peninsula 65 million years ago.

恐龙的毁灭是地球生命史上最重要的事件之一。科学家们的研究为该事件的发生原因提供了一个解释：6500万年前，一块厚度为10英里的陨石撞击了墨西哥尤卡坦半岛。

Several conclusions are drawn from the study. The ore deposit mainly occurs in the lower Cambrian Shuigoukou Formation, which is situated at the limbs of Qingshixia-Yujiatai overturned multiple syncline. The ore-hosted rocks are silicalite and mudstone. The content of SiO2 is high in the rocks of V ore deposit. Silicalites are mainly aphanitic quartz and chalcedony and the barite is sedimentogenic. The correlation between V and Cr, U, Ba is good. The rare earth element distribution patterns show Ce-negative or positive anomaly, obviously Eu positive anomaly and the right dip graphics.

研究结果表明，该区钒矿主要产出于青石峡－余家台倒转复式向斜两翼下寒武统水沟口组下岩段硅质岩夹泥岩的泥岩中，矿体产状与地层产状基本一致；钒矿床中所有岩石都含有较高的SiO2，硅质岩以隐晶质石英和玉髓为主，有沉积成因重晶石；V与Cr、U、Ba相关性好；稀土元素球粒陨石标准化模式具有或正或负的Ce异常和明显的Eu正异常、向右倾的图形。

Its most impressive feature is perhaps the 800-mi (1,300-km) Caloris Basin, formed by a huge meteorite impact.

它的表面布满陨星坑，给人印象最深刻的也许是它半径达1，300千米的卡路里盆地，是由一个巨大的陨石撞击而成。

Its surface is heavily cratered. Its most impressive feature is perhaps the 800-mi (1,300-km) Caloris Basin, formed by a huge meteorite impact.

它的表面布满陨星坑，给人印象最深刻的也许是它半径达1，300千米的卡路里盆地，是由一个巨大的陨石撞击而成。

According to this scenario, researchers could never find evidence of such early chondrules because all these objects would have been destroyed by the melting of the chondritic asteroids into which they accreted.

在这个情形下，研究人员恐怕永远也无法找到如此早期的球粒证据，因为所有这些物体在聚合的过程中，都会因为球粒陨石小行星熔化而被破坏。

According to this scenario, researchers could never find evidence of such early chondrules because all these objects would have been destroyed by the melting of the chondritic asteroid s into which they accreted.

在这个情形下，研究人员恐怕永远也无法找到如此早期的球粒证据，因为所有这些物体在聚合的过程中，都会因为球粒陨石小行星熔化而被破坏。

Some people have reported seeing more semivolatile elements in a class of interplanetary dust particles called "chondritic porous" IDPs.

曾有人报告在一类被称作&多孔球粒陨石&的行星尘埃颗粒中见到了较多的半挥发性元素。

A large chondritic meteorite crashed near the village of Carancas in Peru, close to the Bolivian border and to Lake Titicaca.

大chondritic陨石坠毁村附近的Carancas在秘鲁，靠近玻利维亚边境和喀喀湖。

Subchondritic or approximate chondritic Nb/Ta rations are observed in mantle-derived plagioclase granites and alkaline granites related to the tectonic settings of rift or hot sports. General granites possess very low Nb/Ta (0), even Nb/Ta ≤1 for highly evolved granites.

花岗岩中的幔源斜长花岗岩及与裂谷、热点环境有关的碱性花岗岩Nb/Ta比值近于地球平均值，而普通S型及I型花岗岩，特别是高演化花岗岩，Nb/Ta比值均明显低于球粒陨石(0)，甚至呈现Nb/Ta≤1。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。