| 南海北部冷泉区深水珊瑚的发现及其特征 |
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| 引用本文： | 陈忠,莫爱彬,赵美霞,仲义,颜文.南海北部冷泉区深水珊瑚的发现及其特征[J].热带海洋学报,2018,37(1):64-71. |
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| 作者姓名： | 陈忠 莫爱彬 赵美霞 仲义 颜文 |
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| 作者单位： | 1. 中国科学院边缘海与大洋地质重点实验室(南海海洋研究所), 广东 广州 5103012. 中国科学院大学, 北京 100049 |
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| 基金项目： | 国家自然科学基金面上项目(41376057、41676056) |
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| 摘 要： | 冷水珊瑚也称为深水珊瑚, 在生物多样性、生态资源和科研价值等方面具有重要意义。文章对采自南海北部冷泉区的冷水珊瑚骨骼碎屑进行测定, 鉴定出冷水珊瑚2个种(Crispatotrochus sp.1和Crispatotrochus sp.2), 以及4个属Balanophyllia (Balanophyllia)、Balanophyllia (Eupsammia)、Lochmaeotrochus和Enallopsammia]。测定的冷水珊瑚的δ13C为-7.36‰~-1.15‰, δ18O为-1.38‰~3.67‰, 与全球冷水珊瑚碳氧同位素组成相似, 但明显不同于南海暖水珊瑚、冷泉碳酸盐岩及低温热液成因碳酸盐岩的碳氧同位素组成。
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| 关 键 词： | 冷水珊瑚 冷泉渗漏 碳氧同位素 海底底流 南海北部 |
| 收稿时间： | 2017-02-26 |
| 修稿时间： | 2017-05-10 |
The discovery of deep-water corals from cold seep area in the northern South China Sea and their characteristics |
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| Zhong CHEN,Aibin MO,Meixia ZHAO,Yi ZHONG,Wen YAN.The discovery of deep-water corals from cold seep area in the northern South China Sea and their characteristics[J].Journal of Tropical Oceanography,2018,37(1):64-71. |
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| Authors: | Zhong CHEN Aibin MO Meixia ZHAO Yi ZHONG Wen YAN |
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| Institution: | 1. CAS Key Laboratory of Ocean and Marginal Sea Geology, South China Sea Institute of Oceanology, Guangzhou 510301, China2. University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | Cold-water corals, also known as deep-water corals, are newly found ecological resources with high biological diversity and attract scientific research on environmental changes. In this study, we investigated cold-water corals retrieved from the cold seep area in the northern South China Sea. We identified two species (Crispatotrochus sp.1, Crispatotrochus sp.2) and four genera Balanophyllia (Balanophyllia), Balanophyllia (Eupsammia), Lochmaeotrochus, and Enallopsammia]. Stable carbon and oxygen isotopic analyses revealed that the δ13C and δ18O of cold-water corals were -7.36‰ ~ -1.15‰ and -1.38‰ ~ 3.67‰, respectively. The δ13C and δ18O results were close to the carbon and oxygen isotopic values of cold-water corals in other parts of the world, but were quite different from those of warm-water corals, cold-seep carbonate rocks and low-temperature hydrothermal carbonate rocks. This research discovered cold-water corals in a cold seep region of the northern South China Sea. This discovery is important for the studies on environmental effects of deep-water currents and of cold springs in the region. |
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| Keywords: | deep-water corals hydrocarbon seepage C-O isotope bottom current northern South China Sea |
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