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通过采集于塔里木盆地西缘哈拉奇地区晚古生代地层中遗迹化石的分析鉴定,共识别出遗迹化石8属10种和1个遗迹相.根据遗迹化石的组合特征及其沉积环境,组建了3个遗迹组,并在遗迹化石基础上结合岩性、古地理环境等特征对研究区沉积环境变迁作了讨论,认为研究区晚古生代经历了多期次海水进退循环,泥盆纪-石炭纪总体海水侵进,沉积环境由滨海逐渐演变为开阔台地,砂泥质沉积发育;二叠纪经历了海退-海进-再次海退的过程,沉积环境依次为滨海-台地边缘斜坡-滞留海湾,碳酸盐沉积发育.这些研究对进一步认识研究区古生物面貌,进而恢复古环境、古生态有重要意义.
Through the identification and analysis of the trace fossils in the Late Palaeozoic strata in the Halaqi area on the western edge of the Tarim Basin, 10 species of 8 genera and 1 trace facies of the fossils are identified. According to the combination features of the trace fossils and their sedimentary environment, 3 Based on the trace fossils and the characteristics of lithology and palaeogeomorphology, the sedimentary environment changes in the study area are discussed. The Late Paleozoic experienced many cycles of seawater advance and retreat, and the Devonian-Carboniferous general The seawater invaded and the sedimentary environment gradually evolved from coastal to open platform with sandy shale depositional development. The Permian underwent sea-receding-seaward-receding processes. The sedimentary environment was in order of coastal-platform edge slope-stranded bay, Carbonate deposition and development of these studies to further understand the paleontological aspects of the study area, thereby restoring ancient environment, paleo-ecology is of great significance.