middle cambrian period

常见例句

双语例句

• Afterward, global large-scale massive volcanic activity in Permian Period generally brought about metamorphism whole middle Cambrian Period volcanic sediment rock in research area.
  二叠纪全球性大规模火山活动，致使区内整个中寒武纪的火山沉积岩普遍发生变质。
• The Pb-Zn mineralization is controlled by the Hanyuan-Emei depression and a contemporaneous fault in the middle of the depression during the Late Sinian-Early Cambrian Dengying Period.
  成矿作用受晚震旦世—早寒武世北东东向延伸的汉源—峨眉凹陷及同生断裂带的控制。
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