microbolite

常见例句

• The microbolite in the chert are composed of stromatolites and thrombolites under the Precambrian-Cambrian boundary which is similar to those in the contemporary sediments on the carbonate plarforms.
  在根据有机碳同位素和微体化石确定的前寒武纪-寒武纪界线之下，微生物岩以叠层石-凝块石组合为标志，具有与台地相同期地层类似的特征；
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