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平邑盆地位于鲁中南沂蒙山区,属鲁西隆起区汶泗凹陷带的东南延伸部位,为北断南超的带状单断盆地。盆地内沉积了侏罗系、白垩系、下第三系和第四系。该区的下第三系只是概略地与邻区其它盆地类比,认为时代属始新一渐新世,称为官庄组。1980年起,笔者对下第三系的岩性特征及空间分布、沉积旋迴、韵律及古生物组合等作了研究,可以
The Pingyi basin is located in Yimengshan Mountain in central-Lushan Mountains and belongs to the southeastern extension of the Wen-Si depression belt in the Luxi Uplift. It is the belt-shaped single-fault basin in the north and south. The basin deposited Jurassic, Cretaceous, the next Tertiary and Quaternary. The Lower Tertiary in this area is only roughly analogous to other basins in the neighboring area. It is believed that the age belonged to the New-Oligocene, called Guanzhuang Formation. Since 1980, the author has made a study on the lithologic characteristics and spatial distribution, sedimentary cycles, rhythms and palaeontological assemblages of the Lower Tertiary.