摘要
凤阳县石门山—清塘一带不整合于古近纪定远组之上,上为中更新世泊岗组角度不整合覆盖的一套松散的槽状交错层理发育的砂砾层,为典型的河流相沉积。上述砂砾层与下草湾组、定远组岩性及成岩程度上相差甚远,与南京地区“六合组”岩性相近,但时代不同,故新建“石门山组”。
Around the Shimenshan Qingtang area a suite of loose granular gravel deposit of typical stream facies in which trough cross bedding is developed discordantly overlies the Paleogene Dingyuan Formation and underlies the mid Pleistocene Bogang Formation. Lithologically the rock bed is far different from the Xiacaowan Formation and Dingyuan Formation, but similar to the Liuhe Formation in the Nanjing area except for the difference in age.According to nomenclature for rock stratum unit,the Shimenshan Formation is established.
出处
《安徽地质》
2002年第2期92-96,共5页
Geology of Anhui
