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1978年以来,作者在海南岛和西沙群岛进行了20余条现代珊瑚礁剖面的现场测量和调查,潜水深度一般小于10米,个别剖面达25米。综合野外室内资料,归纳出海南岛和西沙群岛现代珊瑚礁沉积模式。本文在叙述各相带的水动力条件、地貌形态、生物分布等沉积环境的同时,着重于沉积物和沉积岩特征的探讨。
Since 1978, the authors conducted field surveys and surveys of more than 20 modern coral reef profiles in Hainan Island and Xisha Islands. The diving depth is generally less than 10 meters and the individual cross-sections are 25 meters. Based on the field data, the depositional patterns of modern coral reefs in Hainan Island and Xisha Islands are summarized. In this paper, the hydrodynamic conditions, topography and biodistribution of sedimentary environment of each facies belt are described, and the characteristics of sediments and sedimentary rocks are discussed.