山东潍县武家村第四纪地层及哺乳类化石

本文根据武家村发现的第四纪哺乳类,海、陆相软体类化石,以及地层中所含的植物孢粉和岩性特征,把该地区第四纪地层初步划分为全新统、晚更新统、中更新统(陆相沉积)和早更新统(海相沉积)。

THE QUATERNARY STRATIGRAPHY AND MAMMALIAN FOSSILS OF WEIXIAN, SHANDONG

The present paper deals with the Quaternary stratigraphical subdivision of Weixian, Shandong and the fossil mammals and mollusces collected at Ujia chun village of this region in 1979. With the basalt as basement, the sediments attributed to the Quaternary in this area consist of terrigenous soil, sands and subclay, and marine sand. On the basis of animal remains, lithology and geological structures the deposits are subdivided into four layers: soil and fine sand of Holocene; sands of later Pleistocene; subclay of middle Pleistocene and marine sand of early Pleistocene or middle Pleistocene. The early Pleistocene marine sediment over laying on the basalt of later pliocene was first recognized in the region. The vertebrate fossils are listed as following: The sands of later Pleistocene Myospalax psilurus Coelodonta antiquitatis Bos primigenius. The subclay of middle Pleistocene Archidiskodon weifangensis Jin Coelodonta sp.