| Mineral provinces and material provenance of the surficial sediments near the Zhongsha Islands in the South China Sea |
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| 作者姓名： | YAN Quanshu SHI Xuef WANG Kunshan |
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| 作者单位： | YAN Quanshu1，2，3，SHI Xuefa2*，WANG Kunshan21. Institute of Oceanology，Chinese Academy of Sciences，Qingdao 266071，China2. Key Laboratory of Marine Sedimentology and Environment Geology of State Oceanic Administration，First Institute of Oceanograghy，State Oceanic Administration，Qingdao 266061，China3. Graduate School，Chinese Academy of Sciences，Beijing 100049，China |
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| 基金项目： | Acknowledgements This work was supported by the Special Plan Project of Science and Technology generalship in Qingdao under contract No. 05 - 2 - JC - 79 and Special Project of Technical Foundational Work and Social Public Welfare Research under contract No. 2003DIB3J114. |
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| 摘 要： | 1 IntroductionThe South China Sea is one of the northwesternPacific marginal basins, which is located atthe junc-tion region among Euro-Asia plate, Pacific plate andIndia plate. Owing to its unique geological charac-teristics, the South China Sea has beco…
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| 关 键 词： | 南海 中沙群岛 海底沉积物 矿物 来源 |
| 收稿时间： | 2006-04-17 |
| 修稿时间： | 2006-08-22 |
Mineral provinces and material provenance of the surficial sediments near the Zhongsha Islands in the South China Sea |
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| YAN Quanshu,SHI Xuef,WANG Kunshan.Mineral provinces and material provenance of the surficial sediments near the Zhongsha Islands in the South China Sea[J].Acta Oceanologica Sinica,2007,26(1):66-76. |
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| Authors: | YAN Quanshu SHI Xuefa and WANG Kunshan |
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| Institution: | First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Key Laboratory of Marine Sedimentology and Environment Geology of State Oceanic Administration, First Institute of Oceanograghy, State Oceanic Administration, Qingdao 266061, China;Graduate School, Chinese Academy of Sciences, Beijing 100049, China;Key Laboratory of Marine Sedimentology and Environment Geology of State Oceanic Administration, First Institute of Oceanograghy, State Oceanic Administration, Qingdao 266061, China |
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| Abstract: | Characteristics and distribution patterns of clastic minerals (0.063～0.125 mm) in bottom sediments represent a significant indicator for the identification of the origin of sediment. One hundred and fourteen surface sediment samples, which were collected from the area near the Zhongsha Islands in the South China Sea, were analysed to identify the mineral suites and their distributions in the study area. The area can be divided into three mineral provinces: (Ⅰ) a province of biogenic minerals, which mainly originate from the Zhongsha Atoll; (Ⅱ) a province of volcanogenic minerals, which are mainly derived from local basaltic seamounts and small-scale volcanoes that are probably erupting, with some influences from the island-arc volcanic region around the South China Sea; and (Ⅲ) a mixed mineral province whose material source includes biogenic minerals, volcanogenic minerals and terrigenous minerals; the last province can be subdivided into a mixed mineral sub-province of the northeastern part of the study area, in which terrigenous minerals are mainly derived from China's Mainland and do not exceed 17°N, and a mixed mineral sub-province of the southeastern part of the study area, in which terrigenous minerals are derived from Kalimantan and Indochina Peninsula and might be further transported into the deep sea basin through submarine canyons. |
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| Keywords: | South China Sea Zhongsha Islands light mineral minerals province material provenance |
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