Tectonic geomorphology of the Ryukyu Trench-Arc-Backarc System: geological-geophysical exploration and mapping | |
Fu, MZ; Liu, LJ; Zheng, YP; Liu, BH; Wu, JL; Xu, XW | |
刊名 | CHINESE SCIENCE BULLETIN |
2004-07 | |
卷号 | 49期号:14页码:1512-1526 |
关键词 | Trench-Arc-Backarc system tectonic geomorphology geomorphologic classification geomorphologic mapping |
ISSN号 | 1001-6538 |
DOI | 10.1360/03wd0219 |
英文摘要 | Based on an analysis of full-cover multi-beam bathymetric data, seismic and sub-bottom profiling data, and other geological-geophysical data sets, the geomorphologic features of the Ryukyu trench-arc-backarc (T-A-BA) system are delineated, and a geomorphologic map of the system is compiled. The results show that the evolution and spatial distribution patterns of the geomorphologic types of the Ryukyu T-A-BA system are controlled mainly by tectonic movements. The tectonic geomorphologic characteristics of the Ryukyu Arc (RA) differ distinctly from those of the East China Sea (ECS) continental shelf and slope. In term of geological structures, RA consists of the Tokara volcanic ridge, the Ryukyu folded ridge, the fore-arc accretion-wedge ridge and the Amami Depression and the fore-arc depressions between the ridges, which is composed of a complex of alternating island-slope ridges and fault basins. The slope of the ECS is a passive continental margin with stepwise faults. The Okinawa Trough (OT) is a backarc rift in which tectonic movements are intensive, with active volcanic and hydrothermal eruptions and sea floor spreading. The development of geomorphic features of the OT is controlled by the central en echelon spreading axes, the faults along the ECS slope and the marginal faults to the west of the Tokara volcanic ridge. The geomorphic complex of the OT is arranged in the following pattern: the en echelon grabens and volcanic chains formed by rifting and spreading lie in the central part of the trough, the turbidite plains inclining eastwards-southeastwards from the slope foot of the ECS lie in the western-northwestern parts of the OT, and the volcaniclastic deposit plains inclining westward-northwestwards from the western slope foot of the RA lie in the eastern-southeastern parts of the OT. In term of tectonic geomorphology, the OT forms a natural division between the shelf of the ECS and the RA. |
WOS研究方向 | Science & Technology - Other Topics |
语种 | 英语 |
出版者 | SCIENCE CHINA PRESS |
WOS记录号 | WOS:000224400900017 |
内容类型 | 期刊论文 |
源URL | [http://ir.fio.com.cn/handle/2SI8HI0U/4785] |
专题 | 自然资源部第一海洋研究所 |
作者单位 | 1.First Inst Oceanog, State Ocean Adm, Qingdao 266061, Peoples R China; 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China; 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China; 4.Ocean Univ China, Coll Earth Sci, Qingdao 266003, Peoples R China |
推荐引用方式 GB/T 7714 | Fu, MZ,Liu, LJ,Zheng, YP,et al. Tectonic geomorphology of the Ryukyu Trench-Arc-Backarc System: geological-geophysical exploration and mapping[J]. CHINESE SCIENCE BULLETIN,2004,49(14):1512-1526. |
APA | Fu, MZ,Liu, LJ,Zheng, YP,Liu, BH,Wu, JL,&Xu, XW.(2004).Tectonic geomorphology of the Ryukyu Trench-Arc-Backarc System: geological-geophysical exploration and mapping.CHINESE SCIENCE BULLETIN,49(14),1512-1526. |
MLA | Fu, MZ,et al."Tectonic geomorphology of the Ryukyu Trench-Arc-Backarc System: geological-geophysical exploration and mapping".CHINESE SCIENCE BULLETIN 49.14(2004):1512-1526. |
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