广西那艺泥盆系五指山组下段地层研究

从广西那艺五指山组下段识别出三个晚泥盆世牙形石标准带，自上而下为：混杂上ｃｒｅｐｉｄａ带，混杂中ｃｒｅｐｉｄａ带至ｔｒｉａｎｇｕｌａｒｉｓ带，下ｔｒｉａｎｇｕｌａｒｉｓ带。该段含不少再沉积化石，岩性以灰质拟角砾岩为主夹瘤状灰岩，从而确定其为碳酸盐浊积岩，浊积的时代为法门期ｔｒｉａｎｇｕｌａｒｉｓ带至上ｃｒｅｐｉｄａ带。该段属陆壳上的盆地相，靠近台地斜坡，至少存在两种类型的浊积岩。另外，本剖面尚发现大量微球粒。

Discovery of Late Permian spores and pollen from the Pusige Formation of Pishan, Xinjiang

The present paper deals with the spores and pollen macerated from the middle upper part of the Pusige Formation of the Duwa section, Pishan County, S. Xinjiang. The appearance of Lueckisporites virkkiae Potonié et Klaus, Taeniaesporites spp. and Gardenasporites xinjiangensis Hou et Wang in the present assemblage suggests a Late Permian age for the assemblage. Based on the discussion concerning the palaeontological evidences from the overlying Duwa Formation and the underlying Keziliqiman Formation, the author holds that the Pusige Formation represents the deposits from middle Early Permian to middle Late Permian.