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应用层序地层学理论对黔南独山地区晚石炭世麦粒(竹蜓)(Triticites)带地层进行了详细的沉积层序分析和系统的碳同位素测定,识别出2个三级沉积层序和17个准层序,其可与北美中大陆同期地层中发现的2个三级沉积层序和17个亚层序对比,是晚石炭世Gzhelian期存在全球沉积记录同时性的佐证。同时探讨了碳同位素演化与全球海平面变化之间的内在联系,总结出沉积层序内碳同位素演化规律。
Based on the sequence stratigraphy theory, a detailed sedimentary sequence analysis and systematic carbon isotope determination of the Late Carboniferous Triticites zone in the Dushan area, southern Guizhou, were conducted. Two third-order sedimentary sequences And 17 quasi-sequences, which are comparable to the two third-level sedimentary sequences and 17 sub-sequences found in contemporaneous formations of the North American Central Continent and are evidence of the global sedimentary record simultaneity in the Gd-Late Gassy period of the Late Carboniferous. At the same time, the relationship between the evolution of carbon isotopes and global sea level changes was discussed, and the evolution of carbon isotopes in sedimentary sequences was summarized.