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通过对石炭纪扬子板块内部、扬子板块与华北板块及扬子板块与欧美板块之间的不同级别沉积层序对比研究,编制了扬子板块、华北板块和欧美板块石炭纪的海平面变化曲线。在扬子板块内部,上、下扬子区2级沉积层序可以进行对比,但下扬子区海进和海岸上超滞后于上扬子区,由于资料的限制,3级沉积层序的对比还有困难;华北板块Fusulina-Fusulinela带内的一个3级沉积层序和Triticites-Peudoschwagerina带内的四个3级沉积层序,可以和扬子板块同期的3级沉积层序对比;扬子板块和北美中大陆不仅3级沉积层序可以对比,而且在晚石炭世Gzhelian期4级沉积层序也可以进行对比,但由于它们大地构造背景的差异,导致沉积层序组成内容的不同。上述对比结果被认为是冰川型全球海平面变化所形成全球沉积记录同时性的证据。并以冰期与非冰期、联合古陆形成前后等方面对相同板块内和不同板块间沉积层序的数量和级别的异同原因进行了探讨,认为石炭纪冈瓦纳大陆冰川消长是控制全球海平面变化的主要因素,因此,沉积层序应具全球同时性和可对比性,但局部沉积条件差异也将影响沉积层序组成。
By comparing the sedimentary sequence of different levels between the Yangtze block, the Yangtze plate, the North China plate, the Yangtze plate and the European plate in the Carboniferous, the sea level curves of the Yangtze Plate, the North China Plate and the Carboniferous Plate in the United States and China are prepared. In the Yangtze Plate, the upper and lower Yangtze strata can be compared with the second-order sedimentary sequences, but the lag area lags behind the upper Yangtze strata at seaward and coast. Due to the restriction of data, there is still some difficulty in comparing the third-order sedimentary sequences ; A 3-grade sedimentary sequence within the Fusulina-Fusulinela belt of the North China Plate and four 3-s sedimentary sequences within the Triticites-Peudoschwagerina zone can be compared with the 3rd-order sedimentary sequence of the Yangtze Plate; the Yangtze Plate and the North American continent not only The third-order sedimentary sequence can be compared with the fourth-order Gzhelian sedimentary sequence in the Late Carboniferous. However, due to the difference in their tectonic setting, the sedimentary sequence composition is different. The above comparisons are considered as evidence of the global simultaneity of sedimentary records resulting from changes in glacier-shaped global sea level. The similarities and differences of sedimentary sequence numbers and levels within and between the same plate and plate are discussed in the aspects of glacial and non-glacial period and the formation of united ancient land. It is concluded that the glacier growth and decline in the Gondwanaland continent is controlled by the global sea level Therefore, the sedimentary sequence should be global simultaneity and comparability, but the difference of local sedimentary conditions will also affect the sedimentary sequence composition.