“互层”用英语怎么说

砂岩通常都与页岩互层.Sandstones are, as a rule , interbedded with shales.最粗粒砂岩与灰色泥岩成互层.The coarsest sandstones intercalated with grey mudstones.砂岩储层与火山岩是互层分布, 其厚度呈负相关.Sandstone reservoir and volcanic rock distribute alternately, t...