太古代

基本解释 (translations)

Archean  ·  archaeozoic

词组短语

Archaeozoic era

与太古代相关的网络例句 [注：此内容来源于网络，仅供参考]

The origin of life is still a poorly understood process, but it is thought to have occurred about 3.9 to 3.5 billion years ago during the hadean or archean eons on a primordial earth that had a substantially different environment than is found at present.

对于生命起源，我们仍知之甚少，但是据猜测生命起源于距今35亿年到39亿年前，原始地球的冥古代或太古代，当时地球上的环境跟现在大不相同。

In the geological time scale, there are five eras , the archeozoic which means "beginning life", the Proterozoic which means " fore life"

在地质年代表中共划分为5个代，太古代的意思是"生命的开始"。元古代意即"生命之前"

Usually the archeozoic and Proterozoic eras are grouped together and referred to as Precambrian in age. Precambrian rocks have been intensely deformed, metamorphosed and intruded, and are relatively barren of fossil s.

通常太古代和元古代被归在一起而称作前寒武纪，前寒武纪的岩石多遭受强烈变形、变质或被岩浆岩侵入，岩石中缺少化石。

Usually the archeozoic and Proterozoic eras are grouped together and referred to as Precambrian in age. Precambrian rocks have been intensely deformed, metamorphosed and intrude d, and are relatively barren of fossils.

通常太古代和元古代被归在一起而称作前寒武纪，前寒武纪的岩石多遭受强烈变形、变质或被岩浆岩侵入，岩石中缺少化石。

Usually the archeozoic and Proterozoic eras are grouped together and referred to as Precambrian in age. Precambrian rocks have been intensely deformed, metamorphosed and intruded , and are relatively barren of fossils.

通常太古代和元古代被归在一起而称作前寒武纪，前寒武纪的岩石多遭受强烈变形、变质或被岩浆岩侵入，岩石中缺少化石。

Recently komatiite with a typical spinifex texture has been discovered at Sujiagou Village, Dabu Township, Mengyin County, Shandong Province, which further verifies that western Shandong is one of the most typical Archean greenstone belt in the North China platform and even in the world and provides new information for the research on the Archean greenstone belt and its mineral resources in western Shando...

最近，在蒙阴县坦埠镇苏家沟村发现的具典型鬣刺结构科马提岩，进一步证实了鲁西地区是华北地台上乃至世界上最典型的太古代绿岩带之一，为鲁西地区太古代绿岩带及其矿产的研究提供了新的信息。

The growth of the continental crust of southeastern China has been discussed based on the compilation of Nd isotopic model ages of metamorphic basement and granitoid rocks from the region.

中国东南变质基底岩石及各时代花岗岩的Nd同位素模式年龄的统计研究结果表明，该地区太古代—古元古代陆壳以横向增生方式形成，显生宙表现为局部的垂向增生。

Precambrian time is now divided into three eons: Hadean, from the earth ' s origin to about 3900 Ma; Archaean, 3900-2390Ma; and Proterozoic, 2390-570 Ma (the Cambrian marks the start of the Phanerozoic eon, which extends to the present day).

现在将前寒武纪分为三个时代；冥古代，从地球诞生到约39亿年前；太古代，39亿年前—23.9亿年前，以及原生代，23.9亿年前—5.7亿年前（寒武纪标志显生代的开始，延续至今）。

Ccording to the regional geological survey on scale of 1∶50 000 belonging to the second round in Xiaoqinling and Xiaoshan regions,Late Archaeozoic basement metamorphic rock series of two regions have all included the metamorphic supracrustal rock series and metamorphic granite series.

小秦岭崤山地区晚太古代基底变质岩系划分与对比喻积贤①摘要小秦岭、崤山地区第二轮1∶5万区调查明，两地区晚太古代基底变质岩系均包括变质表壳岩系和变质花岗岩系。

The data show the following ages: 1894±17 Ma and 1847±59 Ma for garnet pyroxenite of the Tiantangshan Group complex, indicating a Paleoproterozoic age; 1462±28 Ma for the metabasic volcanic rocks of the Yunkai Group complex, indicating the presence of fragments of the Meso- and Neoproterozoic oceanic crust in the Yunkai area; 906±24 Ma for the granitic gneiss intrusion is, which should be the product of the global Grenville collisional orogeny occurring around 1000 Ma BP. In addition, an inherited detrital zircon age of 2702±13 Ma was also obtained, which is the oldest age in the Yunkai area and even in Cathaysia, proving the presence of Neoarchean continental crustal material in Cathaysia.

获得天堂山岩群石榴辉石岩的形成年龄为1894Ma±17Ma和1847Ma±59Ma，表明其时代为古元古代；云开岩群洋中脊型变质基性火山岩的喷发年龄为1462Ma±28Ma，证明该地区存在中元古代的古洋壳残片；获得花岗质片麻岩的侵入年龄为906Ma±24Ma，应为1000Ma前后发生的全球性Grenville期造山作用的产物，并获得2702Ma±13Ma的继承碎屑锆石年龄，这是云开地区乃至华夏古陆目前获得的最古老年龄，证明华夏古陆曾存在新太古代陆壳物质。

与太古代相关的网络解释 [注：此内容来源于网络，仅供参考]

archean：太古代

带状铁岩(Banded ironstone或Banded iron)是由薄层磁铁矿或赤铁矿等氧化铁反覆堆叠,并夹杂带状页岩或燧石所组成,其构成的岩层称为带状铁岩层(Banded ironstone formations,简称BIFs),主要形成年代以太古代(Archean)和元古代早期(early Proterozoic)为主,

Archean craton：太古代克拉通

archean basement 弧形基底 | Archean craton 太古代克拉通 | Archean era 太古代

Archean craton：太古代克拉通,太古代古陆

"Archaias","原始虫属,古虫属(有孔虫类,E2-Q)" | "Archean craton","太古代克拉通,太古代古陆" | "archegonial chamber","藏卵室"

Archeozoic：太古代的

arched mountains 穹形山 | archeozoic 太古代的 | archeozoic era 太古代

Archeozoic：太古代

元古代(原生代) proterozoic | 太古代archeozoic | 中生代Mesozoic

archeozoic era：太古代

archeozoic 太古代的 | archeozoic era 太古代 | archipelago 群岛

Laurentian orogenesis：劳伦造山运动(太古代元古代间)

浪向风 following wind | 劳伦造山运动(太古代元古代间) Laurentian orogenesis | 劳氏笔石 Loganograptus

Archaean nuclei：太古代陆核

Archaean group 太古界 | Archaean nuclei 太古代陆核 | Archaean 太古代的

archaeozoic：太古代的

archaeopteryx 始祖鸟属 | archaeozoic 太古代的 | archaian 太古代的

archaeozoic：太古代

aquitard 弱透水层 | Archaeozoic 太古代 | Archean (年代) 太古代的;(地层) 太古界的