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Pre·cam·bri·an 英priːˈkæmbriːən美priˈkæmbriənAHDprē-kămʹbrē-ən 高Economist³⁴³¹⁸⁺³
基本英英搭配近义反义例句例句
n.前寒武纪⁶⁷;前塞武层¹¹adj.前寒武纪的¹¹;前塞武层的¹¹
Noun:
the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years agothe Precambrian前寒武纪
近义词 Precambrian period前寒武纪
名词62%,形容词38%
用作名词Selected Papers onPrecambrianiron Deposits.前寒武纪铁矿论文集。
Rapakivi is a special rock inPrecambrian.环斑花岗岩是发育于前寒武纪的一种特殊岩石。用作形容词Rapakivi is a special rock inPrecambrian.环斑花岗岩是发育于前寒武纪的一种特殊岩石。 A craton includes a crystalline basement of commonly Precambrian rock called a shield, and a platform in which flat- lying or nearly flat- lying sediments or sedimentary rock surround the shield.
克拉通包含通常为前寒武纪岩石的结晶基底，即地盾，也包含围绕地盾的并在其上有平卧或近于平卧的沉积物或沉积岩层的地台。 www.infopetro.com.cn
That history began with the origin of the primitive, unicellular aquatic algae of the Precambrian Eon.
最初，前寒武纪出现原始的单细胞水生藻类，除了蓝绿藻和细菌之外。 chinafanyi.com
The mainmetallogenic epoch of the gold ores is Precambrian or Yanshanian epoch, which is inheritance the mineralization time and correlated with the ore-forming location.
金矿成矿时代主要有前寒武纪和燕山期两个成矿期，两者在成矿时间上显示继承性，在空间上具有相关性。 cnki
The Meso- Cenozoic detachment zones in the front of the Taihang Mountains occur between the early Precambrian metamorphic crystalline basement and post-Mesoproterozoic sedimentary cover.
太行山山前中—新生代伸展滑脱的主拆离构造出现在早前寒武纪变质结晶基底和中元古代以后的沉积盖层之间。 cnki
The study shows that the range, location, intensity and depth of earthquakes are effected and restricted by the rolling topography of Precambrian crystal basement.
指出区内的地震活动范围、位置、强度和深度受前寒武纪结晶基底的起伏构造形态和深度的影响与制约。 cnki
The lower Proterozoic Badu Group is one of the oldest metamorphic rock series in the continental margin of Southeast China, and is an integral part of the early Precambrian Zhejiang- Fujian craton.
下元古界八都群是中国东南大陆边缘最古老的变质岩系之一，为早前寒武纪浙闽克拉通的主要组成部分。 dictall
The Mashan group and Heilongjiang group are major components of the base of Precambrian Jiamusi block.
麻山群和黑龙江群是佳木斯地块前寒武纪基底的重要组成。 dictall
The tectonic frame and subdivision of tectonic units of the world Precambrian basement are essential for paleocontinent reconstruction.
全球前寒武纪基底构造格架与构造单元的划分是古大陆再造和泛大陆拼合的重要基础。 dictall
The upper Precambrian basement of the Cathaysia block in southwestern Zhejiang and northwestern Fujian Provinces was mainly composed of Longquan Group, Mamianshan Group and Wanquan Groups.
浙闽地区华夏地块前寒武纪上基底主要由出露于闽西北和浙西南的马面山群、万全群和龙泉群组成。 dictall
These findings are not of Precambrian animals themselves, but of their tracks.
发现的并不是寒武纪前的动物本身，而是它们的足迹。 ecocn
According to the magnetic field, the statistical method was used to divide Precambrian structure into some uplifts and fault depressions which controlled the gold mineralization.
根据磁场特征．用统计方法可将前寒武纪构造分为若干隆起和断陷，它们对金矿成矿起到了一定控制作用。 cnki
After the Precambrian Era, such marine invertebrate animal as trilobites, brachiopods, nautiloids, horn corals, honeycomb corals and twig like bryozoans were abundant during the Palaeozoic Era.
在前寒武纪之后的古生代，是无脊椎动物的繁衍时期，例如三叶虫、腕足类、头足类、角状珊瑚、蜂巢珊瑚和苔藓动物。 chinafanyi.com
Gold deposit in Precambrian banded iron formation is an important type of gold ore, which has been paid more attention by many domestic or alien geologist.
前寒武纪铁建造中的金矿床是世界上一种重要的金矿类型，深受国内外地质工作者的重视。 cnki
In addition to rivers along the eastern side of a small area for the basalt tablet, the entire river rocks from the Precambrian, the flow to the alluvial estuary began to expand outward.
除河道东端沿岸有小片地区为玄武岩外，整个河床由前寒武纪岩石构成，流至河口湾处冲积层开始向外扩展。 blog.sina.com.cn
Late Precambrian mafic dyke swarms are extensively developed in the central North China Craton.
华北克拉通中部广泛发育晚前寒武纪镁铁质岩墙群。 dictall
My teachers had told me that the rocks were Precambrian and therefore should not contain fossils, so I told my father about it and he invited one of his friends to come and have a look.
我的老师告诉我这些岩石是前寒武纪的，因此不应该还含有化石，因此我告诉了我的父亲，他邀请他的一位朋友来帮忙看看。 wetalent
Of or relating to the oldest known rocks, those of the Precambrian era, that are predominantly igneous in composition.
所知的最古的前寒武纪时代岩石，其组成成分主要为火成岩的，或与之相关的。 poptool
Paleocontinental margins and rifts within paleocontinents are very favorable places for the distribution of Precambrian mineral deposits in China.
而陆块边缘和陆块内部裂谷是前寒武纪矿床产出的十分有利的空间。 iciba
The above-mentioned results are of significance for further study of Precambrian structures and magmatic evolution in Fujian Province.
这一最新成果对进一步研究我省前寒武纪构造及岩浆演化具有重要意义。 cnki
The first three eons, which together lasted nearly 4 billion years, are together known as the Precambrian.
前三个时期合起来持续了40亿年，合称为前寒武纪隐生宙。 yeeyan
The paper presents the distribution and geologic characteristic of early Precambrian migmatitic granite and granite in Liaoning province.
研究了早前寒武纪辽宁省混合花岗岩和花岗岩的分布及岩石特征。 dictall
The results indicate that there occurred Precambrian magmatism but also Mesozoic magmatism on the southeastern margin of the North China Block in the Bengbu area.
结果表明，华北陆块东南缘不仅存在有前寒武纪岩浆活动，还广泛发育有中生代岩浆岩。 cnki
The original bodies of gas-oil formation are Acritarch and Botryococcus from Precambrian to Silurian.
中国前寒武纪至志留纪油气形成的母源体主要是疑源类与葡萄藻； cnki
The Precambrian intrusive rocks in western Shandong area mainly fall into two parts:the TaishanianArchean and the Aolaishanian early Proterozoic intrusive rocks.
鲁西地区的前寒武纪侵入岩分为太古代泰山期和早元古代傲徕山期二部分。 iciba
This study supplies new geological data for research of the early Precambrian crust growth and tectonic evolution of Western Kunlun.
这对研究西昆仑山早前寒武纪陆壳增生及构造演化提供了重要的地质资料。 cnki
When asked what observation would disprove the theory of evolution, J.B.S. Haldane, a pioneering British geneticist, replied: “ Fossil rabbits in the Precambrian era.”
当问及到什么样的观察资料和数据可以证实进化论， J.B.S霍尔丹，英国遗传学的先驱，他回答道：在前寒武纪的兔子化石就是了。 ecocn
Precambrian animals must therefore have lived at such depths.
因此，前寒武纪的动物肯定曾经生活在这么深的地方。 ecocn
Precambrian high grade terrene granulite facies terrene, consisting of all continental shields basements in the world, are the representatives of lower crust.
构成世界各大陆基底的前寒武纪高级变质区或称麻粒岩相区，是下部地壳的代表。 cnki |