Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| featuresandoriginofturbiditycurrentsedimentwavesinthehuatungbasinofftheeasterntaiwanisland | |
| Liu Jie1; Sun Meijing2; Gao Hongfang2; Li Xuejie2 | |
| 2019 | |
| Source Publication | actageologicasinica
 |
| ISSN | 1000-9515 |
| Volume | 93Issue:4Pages:1088 |
| Abstract | Based on numerous high-resolution seismic profiles, sediment waves and their distribution, morphological characteristics, internal structure, and potential origins were revealed in the eastern waters of Taiwan. The sediment waves are located at the junction between the Taitung Canyon and other canyons in the slope. The wave length and the wave height of a single waveform ranged from 0.8 to 7.2 km and from 18 to 75 m, respectively (NE-SW direction). Sediment waves, located inside the bend of the Taitung Canyon, were characterized by an upward migration and showed mass transport deposits (MTDs) at the bottom, while the inner curve of the bend was subdivided into lower and upper wavy transition units. The sediment waves on the outer curve of the bend were characterized by vertical accumulation, and there was no mass flow deposit at the bottom. According to the geometry of the sediment waves, the calculated flow thicknesses across the entire wave field ranged from 196 to 356 m,and the current velocity ranged from 15 to 21 cm/s. The morphological characteristics, the internal structure, and the distribution of sediment waves, as well as the numerical calculations, evidenced that these sediment waves had formed by turbidity currents. The development of the sediment wave field in eastern Taiwan was found to be similar to that in southwestern Taiwan. It was the sedimentary response of the tectonic movement between 3 and ?1 Ma which created the sedimentary systems where gravity flow processes predominated. Turbidity current sediments settled in the place of less topographical constraints or overflowed in the bend section of the Taitung Canyon, which resulted in the formation of sediment wave fields. |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/20365 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 1.中国科学院广州能源研究所 2.中国科学院广州地球化学研究所 |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Liu Jie,Sun Meijing,Gao Hongfang,et al. featuresandoriginofturbiditycurrentsedimentwavesinthehuatungbasinofftheeasterntaiwanisland[J]. actageologicasinica,2019,93(4):1088. |
| APA | Liu Jie,Sun Meijing,Gao Hongfang,&Li Xuejie.(2019).featuresandoriginofturbiditycurrentsedimentwavesinthehuatungbasinofftheeasterntaiwanisland.actageologicasinica,93(4),1088. |
| MLA | Liu Jie,et al."featuresandoriginofturbiditycurrentsedimentwavesinthehuatungbasinofftheeasterntaiwanisland".actageologicasinica 93.4(2019):1088. |
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