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Permian

美英

adj.【地】二叠纪的；二叠系的
n.二叠纪[系]
网络和二叠纪；二迭纪；古生代二叠纪

Permian

英-汉英-英网络释义

Permian

二叠纪

二叠纪（Permian） ---- 取名於俄罗斯的彼尔姆州（Perm）。二叠纪一词来自日本，因为德国的此地层分为两层。

和二叠纪

古生代_互动百科 ... 亿年前)、石炭纪( Carboniferous 3.55 亿年前)和二叠纪( Permian 2.95 寒武纪（ Cambrian） ...

二迭纪

二迭纪 (Permian) ---- 取名于俄罗斯Perm省。三迭纪 (Triassic) ---- 来自拉丁文 "三" (Trias)。

二叠系

它位于二叠系(Permian)和侏罗系(Jurassic)之间。　始于距今2.5亿年至2.03亿年，延续了约5000万年。

二叠纪的

英语新词汇与常用词汇的翻译(P) ... permeation 透过 Permian 二叠纪的 permillage 千分率 ...

古生代二叠纪

... 340 中生代侏罗纪-三叠纪( Triassic) 420 中生代三叠纪-古生代二叠纪( Permian) 520 古生代二叠纪-石炭纪( Carbonferous) ...

P二叠纪

想象照进化石--初中生物乐园 ... Paleozoic Era:PZ 古生代 Permian P 二叠纪 Carboniferous C 石炭纪 ...

例句：

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。

Previously, the only dateable layers were from the moment the Permian ended and from a subsequent volcanic event some 14m years later .

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。

This animal spread across the massive , ancient continent of Pangea after the end of the Permian Extinction .

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。

The typical drowning event of the carbonate platforms at the turn from the Permian to the Triassic formed a typical drowned unconformity .

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。

Permian hydrocarbon source rocks are an important potential hydrocarbon -generating sequence in the Turpan depression, northwestern China .

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。

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。

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；

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。

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；

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