前寒武纪

基本解释 (translations)

Precambrian  ·  cryptozoic

词组短语

Precambrian period

与前寒武纪相关的网络例句 [注：此内容来源于网络，仅供参考]

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。

Professor Xing is one of the few earliest specialists in the study of Precambrian microplants in the world and he has been long devoted to researches on Precambrian microplants and biostratigraphy.

邢裕盛教授长期从事前寒武纪微古植物及生物地层研究，为国际上最早研究前寒武纪微古植物的少数专家之一。

Features and innovations in this study:(1) Longest successive time scale of Precambrian samples is studied;(2) The environmental and biological significances of the difference between . the carbon isotopic compositions of kerogen and coexisted carbonate were discoved;(3) The difference of biogeochemical processes between Proterozoic closed and open sea system was considered in the disccussion;(5) It is first time to carry out the chemolysis and thermolysis of kerogen in Precambrian organic matter research.(6) It is first time to apply molecular organic geochemical data to the reconstruction of Proterozoic Rodinia Supercontinent.

此项研究具有以下特色和创新之处：(1)研究对象连续时间跨度最长；(2)研究内容涉及面较全面；(3)较早详细探讨了前寒武纪沉积有机质的分子特征与古环境和生物群落的演化关系；(4)独立推导和论证了δ〓C〓和δ〓C〓的差值的生物和环境的重要意义；(5)在前寒武纪有机质研究中区分了局部封闭环境下的生物地球化学循环过程与广域海环境下的生物地球化学过程的差异；(6)开展了前寒武纪干酪根化学和热降解研究；(7)开创性地将分子有机地球化学的数据应用于元古宙Rodinia超大陆的重建中。

A negative abnormal of δ〓C,δ〓O values and positive abnormal of 〓Sr/〓Sr values from the fossiliferous section of the Lowest Cambrian Meishucun Formation implies life depopulation and following explosion of life across the Precambrian\Cambrian boundary.

在前寒武纪-寒武纪界限附近，δ〓C，δ〓O的负异常及〓Sr/〓Sr的正异常暗示了震旦纪到寒武纪之间发生的生物灭绝事件，而随之出现的δ〓C，δ〓O的正异常，则可能指示了寒武纪初的生物大爆发。

Northern Guangxi is an ideal region not only for research of Precambrian stratigraphy but also for ...

桂北是华南前寒武纪地层研究的理想地区之一，同时也是研究华南地壳演化和前寒武纪大地构造性质的最佳地区之一。

In summary, it is evident that orogenic lode-gold deposits, hosted both in Precambrian greenstone belts and Precambrian to Phanerozoic accretionary sedimentary belts, commonly show predictable and repetitive structural geometries.

总之，很显然，赋存于前寒武纪绿岩带和前寒武纪到显生宙增生沉积带造山带脉金矿床，普遍表现出可预测的和重复的几何结构。

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）。

Of, belonging to, or designating the earlier of two divisions of the Precambrian era.

早期前寒武纪前寒武纪的两期中较早的一期的，属于它的或以其命名的

与前寒武纪相关的网络解释 [注：此内容来源于网络，仅供参考]

Huronian movement：休伦运动{前寒武纪}

飓风 hurlecano | 休伦运动{前寒武纪} Huronian movement | 休伦系{前寒武纪} Huronian system

Huronian system：休伦系{前寒武纪}

休伦运动{前寒武纪} Huronian movement | 休伦系{前寒武纪} Huronian system | 飓风 hurricane

Keewatin：啟洼丁(前寒武纪)

啟莫里统(晚侏罗纪) Kimmeridgian | 啟洼丁(前寒武纪) Keewatin | 契干叶 Czekanowskia

Keewatin age：启瓦丁期{前寒武纪}

"榴倍辉长岩","kedabekite" | "启瓦丁期{前寒武纪}","Keewatin age" | "垩磷锌铝石","Kehoeite"

keweenawan：克维诺(前寒武纪)

克氏重液 Klein's solution | 克维诺(前寒武纪) Keweenawan | 刻划生长 glyptogenesis

Pre-Cambrian; Precambrian：前寒武纪

前寒武纪地层 precambrian strata | 前寒武纪 Pre-Cambrian; Precambrian | 前陶器时代 preceramic age

Interregional Seminar on the Development Potential of Pre-Cambrian Mineral Deposits：开发前寒武纪矿床区域间讨论会

mineral deposit,矿床,, | Interregional Seminar on the Development Potential of Pre-Cambrian Mineral Deposits,开发前寒武纪矿床区域间讨论会,, | precambian,前寒武纪,,

Precambrian：前寒武纪/前寒武层

Prdfterence /首选项/ | Precambrian /前寒武纪/前寒武层/ | Precedents /引用单元格/

Precambrian succession：前寒武纪岩系

Precambrian shield 前寒武纪地盾 | Precambrian succession 前寒武纪岩系 | Precambrian 前寒武纪

Precambrian period：前寒武纪时代

前寒武纪冰期 Precambrian ice age | 前寒武纪时代 precambrian period | 前寒武纪地盾 precambrian shield