对黑龙江省嘉荫县乌云煤矿和白山头剖面的孢粉样品进行了研究,结果表明：乌云煤矿剖面孢粉组合中温带类型的花粉（主要为莫米粉属、拟......

Abstract A new geological section recognized in Baishantou of Jiayin, Heilongjiang Province, China, was studied prelimin......