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对鲁西南地区晚古生代含煤地层中采取的岩芯样品进行分析、鉴定和统计,发现了大量保存良好的孢粉化石,总计76属189种及部分未定种。根据孢粉植物群演化的阶段性、主要属种的纵向分布规律和含量上的变化,建立了本区二叠纪的四个孢粉组合带,自下而上为:Ⅰ.Laevigatosporites vulgaris-Florinites junior(VJ)组合;Ⅱ.Gulisporites cochlearius-Sinulatisporites sinensis(CS)组合;Ⅲ.Patellisporites meishanensis-Torispora laevigatus(ML)组合;Ⅳ.Triquitrites-Anticapipollis tornatilis(Tt)组合。它们分别归于本区早二叠世早期的太原组中上部(组合Ⅰ),早二叠世中期的山西组(组合Ⅱ),早二叠世晚期的下石盒子组(组合Ⅲ)和晚二叠世早期的上石盒子组(组合Ⅳ)。简介了各孢粉组合的特征及其与邻区及华北部分地区同期的孢粉组合的对比,并讨论了各孢粉组合所代表的古植被面貌和古气候环境。另外,太原组下部和本溪组由于化石稀少,且保存状况较差,不足以建立孢粉组合,有待今后再作进一步研究。
The core samples taken from the Late Palaeozoic coal-bearing strata in the southwestern area were analyzed, identified and statistically analyzed. A large number of well-preserved sporopollen fossils were found, with a total of 189 genera belonging to 76 genera and some undetermined species. According to the stages of the evolution of the pollen flora and the vertical distribution of the major genera, the four Permian sporopollen assemblages in this area have been established, which are: Ⅰ.Laevigatosporites vulgaris-Florinites junior (VJ) combination; II.Gulisporites cochlearius-Sinulatisporites sinensis (CS) combination; III .Patellisporites meishanensis-Torispora laevigatus (ML) combination; IV.Triquitrites- Anticapipollis tornatilis (Tt) combination. They belong to the upper part of the Early Permian Taiyuan Formation (combinationⅠ), the Early Permian Shanxi Formation (combinationⅡ), the Early Permian Late Stone Box Formation (combinationⅢ) and the second The early Shihmen box group (group Ⅳ). The characteristics of each sporopollen assemblage and its correlation with the sporopollen assemblages in the adjacent areas and parts of North China are briefly introduced. The paleoptile fades and paleoclimate environments represented by each sporopollen assemblage are discussed. In addition, the lower part of Taiyuan Formation and Benxi Formation are not enough to establish sporopollen assemblage due to the sparse fossils and their poor preservation status, awaiting further study in the future.