河南省泌阳凹陷安棚地区古近系核桃园组含碱地层层序特征及其意义
易承龙

Sequence stratigraphy characteristics and its significance of alkaliferous strata of the Paleogene Hetaoyuan Formation in Anpeng area,Biyang sag in Henan Province
Yi Chenglong
泌阳凹陷核二段底面构造及安棚地区天然碱矿分布图