nodular chert

基本解释

• 瘤状燧石；[地质] 结核状燧石

英汉例句

双语例句

• In limestone of Taiyuan Group, Origin of nodular chert and banded chert is that they had been replaced in diagenesis phase.
  太原群灰岩中的燧石结核或条带是在成岩作用阶段经硅质交代成因的。
• The Middle Permian Chihsia Formation of South China is featured by nodular chert, which is of implications in the reconstruction of coeval paleogeography and paleoceanography.
  燧石结核是华南地区二叠纪栖霞组的重要识别特征之一，其成因具重要的古地理、古海洋意义。
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专业释义

地球科学

• 结核状燧石
• 瘤状燧石