平邑盆地官庄群固城组岩石地层

Rock-Stratum of Gucheng Formation Of Guanzhuang Group in Pingyi Basin

摘要:

平邑盆地老第三纪沉积了一套以内陆湖相为主的岩石组合 ,称官庄群。其早期形成的固城组以砾岩为主 ,夹含砾砂岩及砂质泥岩。《山东省岩石地层》定义的固城组层序因断层影响而与平邑盆地实际情况不符 ,其所划的下部红色粘土岩实为卞桥组一段 ,而红色粘土岩之下真正的固城组则被错划为白垩纪青山群。本文将固城组重新厘定为 :不整合于早白垩世火山岩地层之上 ,整合于古新世卞桥组之下的一套以砾岩为主 ,夹含砾砂岩和砂质泥岩的岩石组合 ,并引述了有关的地层剖面。

Abstract:

A set of inland-lake-facies rock combination developed in pingyi basin during old Tertiary, which is called Guanzhuang group. Gucheng formation which is the early deposit of Guanzhuang group is composed mainly of conglomerate rock with conglomerate-bearing sandstone and sandy mudstone . The sequence of Gucheng formation definited by 《The rock strata of Shandong Province》is not consistent with the actual situation of Pingyi basin, caused by fault s effect. The definited low red clay rock of Gucheng formation...