山西晚二叠世微古植物—孢子花粉组合基本特征  

Characteristics of the Late Permian Palynoflora—Spore and Pollen from Shanxi

作　　者：高联达[1] 

机构地区：[1]中国地质科学院地质研究所,北京100037

出　　处：《地球学报》2008年第1期18-30,共13页Acta Geoscientica Sinica

摘　　要：山西晚二叠世微古植物-孢子花粉非常丰富,属种众多,共发现孢子花粉60余属,140余种(包括变种和未定种)。山西上石盒子组微古植物-孢子花粉主要以华夏微古植物群-孢子花粉为特征,并出现较多的欧洲和北美石炭纪和早二叠世(欧美植物群)的微古植物-孢子花粉分子;有少量安加拉(Angara)和冈瓦纳(Gondwana)微古植物群-孢子花粉出现其中,形成了十分独特的华夏微古植物群-孢子花粉。根据孢子花粉在地层中的分布和演化规律,自下而上可分为3个孢子带:3.Cordiatina subrotata-Complexis-porites polymorphus(SP)带;2.Vitreisporites signatus-Luckisporites virkkiae(SV)带;1.Brialatisporites incundus-Nuskoisporites dulbuntyi(ID)带。依据孢子花粉在地层中的变化,详尽的讨论与国内和国外(包括欧洲、美洲和南半球的澳大利亚和南极地区)比较研究。Well-preserved pollen and spores were found in Late Permian samples from Shanxi Province. The assemblages include approximately 140 species or forms （60 genera） of microspores. The microflora composed chiefly of typical elements of Late Cathaysia microflora is also associated with a few forms of Permian Angara and Gondwana Land microflora. The Palynoflora of Shanxi Province is basically different from that of Angara Province in the absence of many typical elements. It seemed that a small number of Gondwana elements moved to the Shanxi Province. There existed Carboniferous and early spores including genera of typical Western European and Northern America Carboniferous assemblages in Upper Permian in North China. Three microfloral assemblage zones have been recognized. In ascending order they are： 3. Cordiatina subrotata-Cornplexisporites polymorphus （SP） zone; 2. Vitreisporites signatus-Lueckisporites virkkiae （SV） zone; 1. Brialatisporites incundus-Nuskoisporites dulbuntyi（ID） zone This is based on a comparative study of stratigraphic ranges of the pollen and spores recovered, in comparison with those from other regions in China, European, North America and South Hemisphere.

关 键 词：微古植物 孢子带 晚二叠世 山西 

分 类 号：P534.46[天文地球—古生物学与地层学] Q913.84[天文地球—地质学]