英语释义

• formed in the later of two divisions of the Precambrian era;

  "proterozoic life forms"

片语

Early Proterozoic早元古代

mid proterozoic中元古代

Proterozoic coverings古生代盖层

Proterozoic Erathem元古界

proterozoic era元古代；原生代

In Proterozoic元古宙

Proterozoic Age元古宙

proterozoic metamorphic元古代变质巖

Proterozoic Neoproterozoic埃迪卡拉纪

later proterozoic晚元古代

英汉例句

• Because the composite vein type ore of Jinchangyu gold deposit pre-dates the pink dyke the gold mineralization should occur in late Proterozoic era.

  金厂峪金矿床的的复脉型矿化早于肉红色钠长巖脉，故其矿化的时代应在晚元古代。

• This paper divides the Paleozoic - Middle-Upper Proterozoic marine basins into the closed bearing basin type and open relief basin type.

  本文把古生界一中、上元古界海相盆地分为封闭型承压盆地和开启型泄压盆地两大类型。

• The Xingdong Group distributed in the northern Xiao Hinggan Mountains and the Mashan Group in the Jiamusi area, Northeast China, are always considered to be Early Proterozoic metamorphic rocks.

  中国东北地区小兴安岭北段分布的兴东群与佳木斯地区的麻山群一直被认为是早元古代形成的变质巖系。

• In the end, the relation between the metallogenesis and the evolution of Archaeozoic and Early Proterozoic earth crust is discussed basing upon the theory of rift.

  最后采用裂谷理论讨论了成矿作用与太古代和早元古代地壳演化的关系。

• The Qinling Group of Lower Proterozoic is an advantageous environment for metallogenesis and the ductile shear zone is a major structure to control rocks and ores.

  下元古界秦岭群是成矿有利环境，韧性剪切带是控巖控矿的主要构造。

• Perhaps the Proterozoic Nonesuch shale of the Superior Basin holds the record as the apparently effective source sequence with the biggest time-spread between deposition and expulsion.

  也许苏必利尔盆地的元古界农萨奇页巖，拥有有效烃源巖层序中由沉积到排烃时间最长的记录。

• The crust in South Jiangxi-West Guangdong began to form in the late lower Proterozoic Subera, and the crust mature degree is lower.

  赣南-粤西地区的地壳自早元古代晚期开始形成，地壳成熟度较低。

• Dating from the Eocene Epoch, the crater is likely less than 50 million years old, but the impact bored into Proterozoic sandstones well over 500 million years old.

  它形成于始新世，距今可能不到5000万年，但是撞击鉆入的原生代砂巖都已经超过5亿年。

• East complex terrain, a steep slope, numerous islands, is the fold of the seabed Proterozoic sedimentary rocks and too ancient crystalline rock.

  东部地形复杂，坡度较陡，岛屿众多，海底是褶皱的元古代沉积巖和太古代结晶巖。

• 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巖系之一，为早前寒武纪浙闽克拉通的主要组成部分。

• Before Later Proterozoic era, in this area more than two times of thermodynamic metamorphism took place.

  在晚元古代以前该地区至少发生过两次热动力变质作用。

• The early Proterozoic metamorphic crystalline basement and the late stable platform covers are exposed in the Yili-central Tisnshan region.

  伊犁中天山区出露早元古代变质结晶基底及晚期地台型稳定盖层。

• The Siberian Platform is the model for studies of a history of development of calcareous algae that appeared in abundance at the transition from the Late Proterozoic to the Early Cambrian.

  西伯利亚地台的新元古代到早寒武世间的钙藻化石特别丰富，为研究钙藻化石的发育历史提供了模式。

• The Middle Proterozoic group Strata in northwest Fujian had been Subjected metamorphism in Caledonian orogeny, and formed a metamorphic rock association of schist-gneiss-migmatite series.

  闽西北中元古代地层在加里东运动期间遭受了变形变质作用，形成了一套片巖—片麻巖—混合巖系变质巖。

• The present materials show that there are a large number of eukaryotes in Middle Proterozoic and the eukaryotes should have appeared earlier than 1850 my. (B. p).

  这些资料表明，在中元古代真核生物已大量存在，故其出现的时间要早于1850百万年。

• The above new data give the information of the possible existence of Proterozoic basement in this district, and Yanshanian magmatism is of great significance for mineralization in the district.

  以上这些新资料说明该区可能存在元古代基底的信息，且燕山期巖浆活动对本区成矿具有重要意义。

• The early Precambrian in Jilin province includes the Archaeozoic granite-greenstone belt, early Proterozoic Ji'an Group and mid Proterozoic Laoling Group .

  吉林省早前寒武纪地质包括太古宙花岗—绿巖带、早元古代集安群和中元古代老岭群。

• The data mentioned above lead to suggest that the granulites are the representatives of middle to lower crust formed round about late Proterozoic era.

  上述资料表明本区的麻粒巖是形成于晚元古代前后的中下地壳产物。

• Early Proterozoic high-pressure metamorphism in the Wutaishan.

  五台山早元古代高压变质作用研究。