白垩系的例句（白垩系在句子中的用法）

• Yingcheng group's volcanic rocks in Shengping field areof rhyolites, andesites, basalts, felsites and volcanic fragmental rocks. 升平气田白垩系营城组火山岩主要为流纹岩 、 安山岩 、 玄武岩 、 霏细岩及火山碎屑岩.
• Upper Cretaceous : Including the Sifangtai Formation — Minshui Formation, corresponding to the Cenonian — Maestrichtian. 四方台组—明水组为白垩系上统, 相当于赛诺—梅斯特利克蒂阶(Senonian—Maestrichtian).
• Porous analcite balls are prepared by analcite rocks andand then are used to removing fluorine. 通过微观分析方法,在鄂尔多斯盆地白垩系钻孔岩样中首次发现方沸石类矿物.
• Analcite mineral was found rock specimen of cretaceous system in the Ordos Basin via using micro - analysis. 通过微观分析,在鄂尔多斯盆地白垩系钻孔岩样中发现方沸石类矿物.