MLR Key Laboratory of Marine Mineral Resources;
Guangzhou Marine Geological Survey;
Guangzhou 510075;
China;
Southern Marine Science and Engineering Guangdong Laboratory;
Guangzhou 511458;
China;
Sun Yat-Sen University;
Marine Institute;
Guangzhou 510075;
China;
carbonate platform; controlling factors; Miocene; Beikang Basin; South China Sea;