论文部分内容阅读
郯城—庐江断裂带平移是近年讨论较多的一个问题。作者在研究了苏皖北部和辽南晚元古代地层地球化学特征之后,发现两地区地球化学特征存在着明显的差异,它们不属于同一沉积盆地。因此,从地球化学角度看,郯庐断裂带不存在巨大平移。从区域构造和地球动力学考虑,晚元古代时期,华北地块东部的地壳波浪状锒嵌构造格局对剥蚀区与沉积区的展布及演化起着明显的控制作用。苏皖北部与辽南上元古界之间的地球化学差异性,在宏观上是构造差异性的物质表现。
Tancheng - Lujiang fault zone translation is one of the more discussed in recent years. After studying the geochemical features of the Late Proterozoic strata in the northern part of Jiangsu, Anhui and southern Liaoning, the authors found that there are obvious differences in geochemical characteristics between the two areas and do not belong to the same sedimentary basin. Therefore, from the geochemical point of view, there is no great translation of the Tan-Lu fault zone. From the perspective of regional tectonics and geodynamics, the crustal wavy embedding structure in the eastern part of North China massif plays an important role in controlling the distribution and evolution of denuded and sedimentary regions in the Late Proterozoic. The geochemical differences between the northern part of Jiangsu and Anhui and the Proterozoic of Liaonan are macroscopically structurally different material manifestations.