Acoustic characteristics of seafloor sediments in the abyssal areas of the South China Sea
文献类型：期刊论文
| 作者 | Yan, W; Luo, Y; Tian, YH; Hou, ZY; Chen, Z; Wang, JQ; Zheng, XF |
| 刊名 | OCEAN ENGINEERING
 |
| 出版日期 | 2018 |
| 卷号 | 156页码:93-100 |
| 通讯作者 | zyhou@scsio.ac.cn |
| 中文摘要 | Deep-sea sediment cores were obtained from abyssal areas (water depth > 4000 m) in the South China Sea (SCS) to derive acoustic characteristics by using a WSD-3 digital acoustic instrument at a frequency of 100 kHz. The compressional wave velocity (Vp) of the seafloor sediments in the central basin is differentiated into 3 provinces on the basis of the sediment properties (esp. mean grain size and velocity). Provinces 1.11 and H2 have a high compressional wave velocity and coarse particles, while the middle province L. has a low compressional wave velocity and fine particles. The results show that the distribution of Vp is related to the sediment physical properties, sediment sources and ocean current. Vertical variations in the Vp indicate that it increases with burial depth in the high-velocity province, but is complicated in the low-velocity province, reflecting that the more active or complicated sedimentary environment in province L may be affected by the topography. We proposed a laboratory sound velocity measurement method based on Hamilton sound velocity ratio method. In addition, the measurement values from this method are close to the in situ sound velocity determined by adjusting the temperature of the sediment samples. |
| 学科主题 | Engineering; Oceanography |
| 关键词[WOS] | Acoustic characteristics ; Abyssal areas ; Sound velocity ratio ; South China sea |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/17134]  |
| 专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
| 推荐引用方式 GB/T 7714 | Yan, W,Luo, Y,Tian, YH,et al. Acoustic characteristics of seafloor sediments in the abyssal areas of the South China Sea[J]. OCEAN ENGINEERING,2018,156:93-100. |
| APA | Yan, W.,Luo, Y.,Tian, YH.,Hou, ZY.,Chen, Z.,...&Zheng, XF.(2018).Acoustic characteristics of seafloor sediments in the abyssal areas of the South China Sea.OCEAN ENGINEERING,156,93-100. |
| MLA | Yan, W,et al."Acoustic characteristics of seafloor sediments in the abyssal areas of the South China Sea".OCEAN ENGINEERING 156(2018):93-100. |
入库方式： OAI收割
来源：南海海洋研究所
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