cherty limestone 硅质石灰岩 ; 硅质石灰质 ; 硅质灰岩
cherty loam 石英质壤土
cherty soil 石英质土
banded cherty iron formation 条带状硅铁建造
metamorphosed cherty iron formation 受变质硅铁建造
cherty flint 燧石
cherty strata 硅质岩相地层
cherty iron formation 燧石质含铁建造
strata of cherty facies 硅质岩相地层
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