| 释义 |
Cambrian system
基本例句
寒武系
Well Xi20 1X is a directional development well in Block Xi20, with its target formation in theCambrian system.西 2 0 - 1X井是西 2 0断块上的 1口三开定向开发井 ,目的层为寒武系府君山组。
When the ore-forming mother rockbody intrude inCambrian systemand later stratums, they are all not forming the industry mineral deposit.成矿母岩侵入寒武系及以后地层中均形不成工业矿床。
To the question why we do not find rich fossiliferous deposits belonging to these assumed earliest periods prior to theCambrian system, I can give no satisfactory answer.对于为什么我们没有发现大量的属于这个比寒武纪还要早的时期的化石，我无法给出满意的答案。
A new global chronostratigraphic subdivision of Cambrian System into 4 series and 10 stages has been developed to replace the tripartite traditional framework of the system, which has been used for more that 170 years.摘要重新划分全球寒武系年代地层为4统和10阶，取代了国际地学界沿用了近170年的上、中、下3统的传统划分框架。
In the Northeast of the West Mountains the Cambrian System ex-posed, while the Changwu Formation of the upper Ordovician and Yejia-tang formation of the Lower Carboniferous covered the west side of themountains.西山的东北部出露寒武系,而西侧为上奥陶统长坞组及下石炭统叶家塘组。
The smithsonite deposits of longshansangzhi lead-zine zone in northwestern Hunan are located in Haozitue group of upperCambrian systemand bottom party of Nanjianguan fromation of lower Ordovician system.湖南西北部龙山 -桑植铅锌矿带的菱锌矿床 ,主要赋存于寒武系上统耗子沱群第 3段和奥陶系下统南津关组底部的“硅化体”与纯灰岩接触面附近 ,为以菱锌矿为主、异极矿其次的氧化锌矿床。 |