Cambrian

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Dengta marine built gypsum deposits occurred in Mantou Jianchang Formations, Lower Cambrian.
灯塔海积石膏矿床赋存于下寒武统馒头组—碱厂组中.
The Pre - cambrian alumino - siliceous slate is the host rock of antimony deposit inHunan.
湖南前寒武系的硅铝质板岩是锑矿主要赋矿岩性.
The Cambrian - Ordovician strata in Luxi Block are very continuous and well exposed.
鲁西地块的寒武 - 奥陶纪地层出露连续,露头较好.
Dengta marine built gypsum deposits occurred in Mantou Jianchang Formations, Lower Cambrian.
灯塔海积石膏矿床赋存于下寒武统馒头组—碱厂组中.
The Pre - cambrian alumino - siliceous slate is the host rock of antimony deposit inHunan.
湖南前寒武系的硅铝质板岩是锑矿主要赋矿岩性.

from or referring to the period of time between about 543 and 490 million years ago, in which many different types of invertebrates (= animals with no back bone) first appeared

of, denoting, or formed in the first 65 million years of the Palaeozoic era, during which marine invertebrates, esp trilobites, flourished
the Cambrian period or rock system

寒武系
At the same time,the bituminous dikes also indicate the favorable foregrounds for exploration of Sinian-Cambrian oilfield in the east margin of fold belt of Longmen Mountain.
同时,矿山梁和碾子坝分布的沥青脉也指示在龙门山褶皱带东缘找寻我国最古老的震旦—寒武系油田的良好前景。
寒武纪
A large scale carbonate platform is drowned from Sinian to Cambrian in Guizhou and its adjacent areas, which leads to Niutitang Formation sedimented abroad.
震旦纪与寒武纪过渡时期的大规模碳酸盐岩台地淹没事件,造成了广泛分布的牛蹄塘组黑色页岩系,在贵州及邻区牛蹄塘组的深水相岩石的广泛分布代表了“相的持续性现象”。
生物学
寒武纪
The small shelly fossils appeared and evolved in Maidiping Formation. The study area located in the west margin of Yangtze platform in early Cambrian.
研究区位于扬子地台西缘,寒武纪初处于低纬度的热带、亚热带,当时受各种机制激发的上升洋流把磷元素从深部带入到古陆的边缘浅海部位,是研究区胶磷矿形成和生物繁盛的前提。
寒武系