[1]Xi'an Center of Geological Survey, China Geological Survey, Xi'an 710054, Shaanxi, China;
[2]Key Laboratory for the Study of Focused Magmatism and Giant Ore Deposits, MLR, Xi'an 710054, Shaanxi, China;
[3]Geological Research Center of Orogenic Belt, China Geological Survey, Xi'an 710054, Shaanxi, China;
[4]Department of Geology, Northwest University, Xi'an 710069, Shaanxi, China;
[5]Research Center of CNOOC (China), Beijing 100010, China;
琼东南盆地; 南海北部; 地震解释; 生物礁; 中新世; 油气成藏; 油气勘探前景; 台地边缘;