南海碳酸盐台地分布自早中新世开始发育,至中中新世达到鼎盛,再到晚中新世大量台地被淹没而逐渐消亡。从分布看,南海碳酸盐台地具有南早北晚、东早西晚的发育规律;从堆积速率看,中中新统速率最大。控制这些台地的诞生、发育演化和消亡的因素十分复杂,可能包括构造活动、相对海平面的变化、陆源碎屑物质输入变化、古海洋环境变化。
The evolution of the Cenozoic reefs-carbonate platform is considered a part of the South China Sea opening, and plays an important role in the deepwater hydrocarbon reservoirs, the global carbon circulation, and the South China Sea tectonic history. The platforms were formed during the early Miocene, and flourished during the early Middle Miocene. However, they became drowned since the Middle Miocene, and many platforms disappeared during the Quaternary. It is found that the carbonate platform of the South China Sea sees a developmental pattern from south to north and from east to west. The highest accumulation rate of the platform was reached during the Middle Miocene. The control of the platform life history is very complex. But the most important four factors are the tectonic activities, the changes in the relative sea level, the changes in the input of the terrestrial detrital materials, and the changes in the paleo-ocean environment, and they are considered to control the development and the death of the reefs-carbonate platform.
[1] Wang P, Li Q, Tian J, et al. Long-term cycles in the carbon reservoir of the Quaternary ocean:Aperspective fromthe South China Sea[J]. National Science Review, 2014(1):119-143.
[2] Wu S, Zhang X, Yang Z, et al. Spatial and temporal evolution of Cenozoic carbonate platforms on the continental margins of the South China Sea:Response to opening of the ocean basin[J]. Interpretation, 2016(3):1-19.
[3] Yu K. Coral reefs in the South China Sea:Their response to and records on past environmental changes[J]. Science China Earth Sciences, 2012(55):1217-1229.
[4] Zhu W, Xie X, Wang Z, et al. New insights on the origin of the basement of the Xisha Uplift, south China Sea[J]. Science China-Earth Sciences, 2017(60):2214-2222.
[5] Fan T, Yu K, Zhao J, et al. Strontium isotope stratigraphy and paleomagnetic age constraints on the evolution history of coral reef islands, northern South China Sea[J]. The Geological Society of America, 2019(132):803-816.
[6] Huang X, Betzler C, Wu S, et al. First documentation of seismic stratigraphy and depositional signatures of Zhongsha atoll (Macclesfield Bank), South China Sea[J]. Marine and Petroleum Geology, 2020(117):104349.
[7] Haq B U, Hardenbol J A N, Vail P R. Chronology of Fluctuating Sea Levels Since the Triassic[J]. Science, 1987(235):1156.
[8] Zachos J C, Dickens G R, Zeebe R E. An early Cenozoic perspective on greenhouse warming and carbon-cycle dynamics[J]. Nature, 2008(451):279-283.
[9] Wu S, Chen W, Huang X, et al. Facies model on the modern isolated carbonate platform in the Xisha Archipelago, South China Sea[J]. Marine Geology, 2020(425):106203.