摘要
从岩石地层学角度探讨了地层命名的依据,并通过对渭北地区中奥陶世地层、沉积环境及岩相特征的研究指出:该区中奥陶世晚期的地层名称应使用泾阳组,而不是平凉组。
The distributive characters of the Formation are discussed in the lithostratigraphic field, Bystudying the mid-Ordovician strata,sedimentary environment and lithofacies of Weibei area,the au-thor points that the mid-Ordovician strata of Weibei area are called the Jingyang formation instead ofthe Pingliang formation。
出处
《西北大学学报(自然科学版)》
CAS
CSCD
1995年第2期147-148,共2页
Journal of Northwest University(Natural Science Edition)
关键词
中奥陶世
平凉组
岩石地层学
the distributive scope of the formation
Weibei area
the mid-Ordovician strata
Pingliang formation