南海第三纪生物礁分布与古构造和古环境

南海是一个具有特殊大地构造背景的区域，该区的第三纪生物礁主要发育在南海北部、南部和西部边缘的新生代沉积盆地中。对生物礁的分布规律以及相应的古构造和古环境研究证实，该区第三纪生物礁生长发育位置明显地受古构造控制，成礁期大型古河流体系对生物礁的生长和分布有较大影响，这些认识对南海生物礁油气藏的勘探、完善生物礁研究理论具有重要的意义和使用价值。

REEFS AND PALEOSTRUCTURE AND PALEOENVIRONMENT IN THE SOUTH CHINA SEA

The South China Sea is of special tectonic setting and the Tertiary reefs mainly develop in the Cenozoic basins located in northern,southern and western margins of it.The relationship between the distribution of the reefs and the paleostructure and the paleoenvironment when the Tertiary reefs were growing has been discussed in this paper.It is confirmed that the location of these reefs were distinctly controlled by the paleostructure.The reefs in the northern margin were obviously distributed along the positive tectonic zones trending NE.In the western margin,they exist roughly on the upper sides of the large strike slip extensional faults.And in the southern,their developments depended upon features of the basement.The growth and distribution of these reefs were also influenced by large river systems at that time.All these are of great significance for the future exploration of the reef reservoirs in the South China Sea.