permian

二叠纪

常用释义

词性释义

二叠纪
例句
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And I worked on this Permian extinction, camping by this Boer graveyard for months at a time.
当时我在研究二叠纪生物灭绝事件,每次都在波尔的墓地露营好几个月。
in Permian, it had developed and formed a typical Cathaysian flora and was an important part of late Paleozoic Cathaysian flora.
二叠纪时已发展为典型的华夏植物区系的性质,是晚古生代华夏植物区系的重要组成部分。
在此之前唯一可以确定年代的地层是二叠纪结束的时刻,以及大约1400万年后的火山爆发事件。
This was the end of the Permian period, and of the era of life called the Paleozoic.
这就是二叠纪以及整个古生代的终结。
At the same time, the sedimentary and ecological environment suffers from a strong variation near the boundary of Permian and Triassic .
整个剖面沉积为一个海浸的过程,其二叠系-三叠系界线之交生态环境发生了很大的变迁。
这在大规模,古老的盘古大陆动物传播后二叠纪灭绝结束。
A few mixed elements of the two floras occurred in the region during the late Middle Permian.
来自这两个植物群的少数混生分子出现在本区的中二叠世晚期。
The end of the Permian period, 252m years ago, was marked by the biggest extinction of life known to have happened on Earth.
252百万年前的二叠纪晚期以已知的地球上发生过的最惨痛的生物灭绝事件著称。
二叠系与三叠系之交发生的较为典型的台地淹没事件形成了一个较为典型的淹没不整合面。
It is considered that the Upper Paleosoic Permian-Triassic System is the main targeted for exploration and that. regionally.
认为上古生界二叠系—三叠系是主要的勘探目的层。
The two boundaries of the Yili Block have been reworked by the Permian strike-slip faulting.
伊犁地块的南、北缘边界在二叠纪期间经受了走滑作用的强烈改造。
恐龙,是在地球上一次最大规模灭绝事件(发生在约二叠纪-三叠纪的2.5亿年前)发生以后才出现的。
这种盖子有较好的防尘保温的封盖作用,但不及覆扣式和叠插式的效果好。
松辽盆地;石炭-二叠系;原型盆地;盆地模拟;热演化史;生烃史。
川东北地区二叠系长兴组生物礁内蕴含大量的天然气,为该区主力储层之。
二叠系烃源岩是中国西部吐鲁番坳陷重要的潜在生烃层系。
Late Permian a ginkgo, cycads, the cycads, conifers and other gymnosperms , the show began with the appearance of health.
晚二叠世出现了银杏、苏铁、本内苏铁、松柏类等裸子植物,开始呈现中生带的面貌。
This evidence was used to suggest that at the end of the Permian, 250 million years ago, a comet hit us.
这些证据表明了在2.5亿年前,也就是二叠纪的末期,一颗彗星撞击了我们。
最近一次,也就是二叠纪生物灭绝事件被认为是撞击的结果,原因就是右图这个美丽的结构。
The Permian was curtailed by massive volcanism. But what exactly happened towards the end of the Triassic has been much debated.
威力无比的火山作用缩短了二叠纪,但是,三叠纪末究竟发生了什么事情一直是热议话题。
A paleomagnetic study on Ordovician to Permian rocks from the Yili Block and its adjacent areas was performed.
本文对伊犁地块及其邻区奥陶-二叠纪地层进行了古地磁学研究。
According to the conodont and fusulinid fossils, their ages are determined to be Devonian -Permian.
根据所含化石确定地层形成时代为泥盆纪至二叠纪。
Most rock sequences that straddle the end of the Permian are either incomplete or hard to date.
二叠纪末期大部分岩石记录要么残缺不全,要么难以断代。
当Grasby和他的团队分析了“二叠纪灭绝”前的岩石成分后,他们注意到一些不寻常的微观颗粒。
the middle Permian was a nappe front foreland basin developmental stage.
晚二叠世,构造褶皱回返,前陆盆地消失;
储集在二叠系砂岩(属于致密砂岩)储层内的煤成气藏成为重要的天然气藏。
The Permian seas came to be dominated by bony fishes with fan-shaped fins and thick, heavy scales.
二叠纪的海洋被硬骨鱼类统治着,它们有着扇子一样的鳍和厚厚的鳞片。
从另一角度说明了该地区晚二叠世时华北板块与塔里木板块的碰撞缝合。
The action must also have played an important role in the mass extinction during the Late Permian and early Triassic.
研究二叠纪末一三叠纪初生物大绝灭事件具有重要作用;
榆林气田二叠系山西组气藏属于典型的低孔、低渗、岩性气藏。