FACTORS OF GEO-HAZARDS IN THE MODERN YELLOW RIVER SUBAQUEOUS DELTA

LI Hai-dong; YANG Zuo-sheng; WANG Hou-jie; WEI He-long; ZHAO Xiao-hui

2006 Vol. 26, No. 4

Article Contents

Article navigation > Marine Geology & Quaternary Geology > 2006 > 26(4): 37-43

Next Article Previous Article

LI Hai-dong, YANG Zuo-sheng, WANG Hou-jie, WEI He-long, ZHAO Xiao-hui. FACTORS OF GEO-HAZARDS IN THE MODERN YELLOW RIVER SUBAQUEOUS DELTA[J]. Marine Geology & Quaternary Geology, 2006, 26(4): 37-43.

Citation:

LI Hai-dong, YANG Zuo-sheng, WANG Hou-jie, WEI He-long, ZHAO Xiao-hui. FACTORS OF GEO-HAZARDS IN THE MODERN YELLOW RIVER SUBAQUEOUS DELTA[J]. Marine Geology & Quaternary Geology, 2006, 26(4): 37-43.

FACTORS OF GEO-HAZARDS IN THE MODERN YELLOW RIVER SUBAQUEOUS DELTA

1 Ocean University of China, Qingdao 266003, China;
2 Qingdao Institute of Marine Geology, Qingdao 266071, China

Received Date: 01 November 2005

Revised Date: 20 May 2006

Abstract

Abstract

Subbottom profile, side-scan sonar and precise depth recorder have been used to classify the factors of geo-hazards in the modern Yellow River delta. The analysis result suggests that there are different geo-hazard factors during different periods of development of the Yellow River delta:(1)In the present estuarine area, the submergence of the high silt concentration forms the unique phenomenon of turbidity current in the Yellow River mouth. Because of the rapid sedimentation and un-consolidation of the silt in the estuary, the lobes of the Yellow River delta splinter towards the ocean in the form of slump step.(2)There are a lot of seabed landslides and erosion structures in the north of the abandoned delta lobe, because sediment input of the estuary is in discontinuity and due to the influence of north wind in winter. (3)The situations in Chengbei area are similar to those in Gudong area.After a long-time reworking, various geo-hazards are found in these two areas, especially in the delta slope where water is 5~8 m deep.
- geo-hazards /
- seabed landslides /
- turbidity current /
- Yellow River delta

FullText(HTML)

References

[1]	周良勇,刘健,刘锡清,等.现代黄河三角洲滨浅海区的灾害地质[J]. 海洋地质与第四纪地质,2004,24(3):19-27. Google Scholar [ZHOU Liang-yong, LIU Jian, LIU Xi-qing, et al.Coastal and marine geo-hazards in the modern Yellow River delta[J].Marine Geology and Quaternary Geology,2004,24(3):19-27.] Google Scholar
[2]	冯秀丽,戚洪帅,王腾,等.黄河三角洲埕岛海域地貌演化及其地质灾害分析[J].岩土力学,2004,25(增刊):17-20.[FENG Xiu-li, QI Hong-shuai, WANG Teng,et al. Geomorphological evolution and geological disasters analysis in Chengdao sea area of the Yellow River Delta[J].Rock and Soil Mechanics,2004 Google Scholar ,25(Supp.):17-20.] Google Scholar
[3]	陈卫民,杨作升,Prior D B,等.老黄河口水下底坡不稳定性研究[C]//黄河口水下底坡不稳定性.青岛:青岛海洋大学出版社,1991:43-56.[CHEN Wei-min, YANG Zuo-sheng, Prior D B, et al. Studies on submarine slope instability of abandoned Yellow River mouth[C].Submarine Slope Instability of the Yellow River Mouth.Qingdao:Qingdao Ocean Unversity Press,1991:43 Google Scholar -56.] Google Scholar
[4]	杨作升,陈卫民,陈彰榕,等.黄河口水下滑坡体系[J].海洋与湖沼,1994,25(6):573-581. Google Scholar [YANG Zuo-sheng, CHEN Wei-min, CHEN Zhang-rong, et al.Subaqueous landslide system in the Huanghe River (Yellow River)Delta[J].Oceanologia et Limnologia Sinica,1994,25(6):573-581.] Google Scholar
[5]	杨作升,Keller G H,陆念祖,等.现行黄河口水下三角洲海底地貌及不稳定性[J].青岛海洋大学学报,1990,20(1):573-581. Google Scholar [YANG Zuo-sheng, Keller G H, LU Nian-zu, et al.Submarine morphology and instability of current subaqueous Yellow River delta[J].Journal of Ocean University of Qingdao,1990,20(1):573-581.] Google Scholar
[6]	杨作升,王涛.埕岛油田勘探开发海洋环境[M].青岛:青岛海洋大学出版社,1993:428-442.[YANG Zuo-sheng, WANG Tao.Exploration and development environment of Chengdao oil field[M].Qingdao:Qingdao Ocean University Press,1993:428 Google Scholar -442.] Google Scholar
[7]	李广雪,刘守全,姜玉池,等.黄河三角洲北部海底刺穿初步研究[J].中国科学D辑,1999,29(4):379-384. Google Scholar [LI Guang-xue, LIU Shou-quan, JIANG Yu-chi,et al.Primary study on the diapir in the north of the Yellow River delta[J].Science in China(Series D),1999,42(2):153-159.] Google Scholar
[8]	李广雪,庄克琳,姜玉池.黄河三角洲沉积体的工程不稳定性[J].海洋地质与第四纪地质,2000,20(2):21-26. Google Scholar [LI Guang-xue, ZHUANG Ke-lin, JIANG Yu-chi.Engineering instability of the deposition bodies in the Yellow River delta[J].Marine Geology and Quaternary Geology,2000,20(2):21-26.] Google Scholar