论文部分内容阅读
南海北部和南部的陆架及部分陆坡区域发育中生代地层,一般分布于中生代曾连在一起的华南陆块、南沙地块、礼乐地块上,这些地块受南海新生代扩张作用而分裂开。中生代地层以早白垩世与晚三叠世—早侏罗世地层为主。南海中生代为新特提斯海的一部分,经历了晚三叠世—早侏罗世海侵,中晚侏罗世隆升剥蚀,早白垩世的再次海侵和晚白垩世抬升等四个演化阶段,沉积了两套海相地层。
The Mesozoic strata are developed in the continental shelf and some continental slopes in the northern and southern parts of the South China Sea. They are generally distributed in the South China Block, Nansha Block and Li Le Block, which were connected together in the Mesozoic. These plots were divided by the expansion of the South China Sea Cenozoic. The Mesozoic strata dominated the Early Cretaceous and Late Triassic-Early Jurassic strata. The Mesozoic in the South China Sea is part of the Neo-Tethys Sea. It experienced four evolutionary stages of Late Triassic-Early Jurassic transgression, mid-late Jurassic uplifting and denudation, Early Cretaceous transgression and Late Cretaceous uplifting Two sets of marine strata.