南沙海槽断裂带活动性初步分析
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摘要
主要讨论了南沙海槽断裂带的活动性和构造演化过程,并对海槽及附近海域的地质稳定性因素进行了分析。发现南沙海槽有活动断裂、火山岩侵入、海底滑塌和地震等不稳定因素。南沙海槽形成演化过程较为复杂,经历过多期逆冲推覆变形和褶皱隆升等构造活动,其中逆冲和隆升等活动现今可能仍在进行,属于次不稳定区域。另外,海槽西南端有滑塌现象和海底阶梯存在,工程地质条件较差。所以,海槽及邻近海区的工程建设需要特别注意这些不稳定因素,应尽量避开不稳定地区或采取工程加固措施等。
According to the information of the seismic profiles,the paper analyses the basic characteristics and the activity of the Nansha Trough fault zone as well as the regional stability of the Nansha Trough and its adjacent area. At the same time,the hazard geological factors of the study area are discussed. There are many geological hazardous factors (landslip,active faults,et.) which endanger the marine development,oil and gas exploration and seabed pipe line directly and indirectly.
According to the information of the seismic profiles,the paper analyses the basic characteristics and the activity of the Nansha Trough fault zone as well as the regional stability of the Nansha Trough and its adjacent area. At the same time,the hazard geological factors of the study area are discussed. There are many geological hazardous factors (landslip,active faults,et.) which endanger the marine development,oil and gas exploration and seabed pipe line directly and indirectly.
引文
[1]邓辉,阎贫,刘海龄.南沙海域天然气水合物地震特征[J].海洋地质与第四纪地质,2004,24(4):89-94.
[2]吴必豪,张光学,祝有海等.中国近海天然气水合物的研究进展[J].地学前缘,2003,10(1):177-189.
[3]Ingrama G M,Chisholma T J,Granta C J,et al.Deepwater North West Borneo:hydrocarbon accumulation in an active fold and thrust belt[J].Marine and Petroleum Geology,2004,21:879-887.
[4]陈忠,颜文,黄奇瑜,等.南沙海槽潜在天然气水合物的地质环境及其指标特征[J].地学前缘,2007,14(6):299-308.
[5]中国科学院南沙综合科学考察队.南沙群岛及其邻近海区第四纪沉积地质学M].武汉:湖北科学技术出版社1993,11-348.
[6]夏戡原等.南沙群岛及其邻近海区地质地球物理与油气资源[M].北京:科学出版社1996,44-210.
[7]苏达权,黄慈流,夏戡原.论南沙海槽的地壳性质[J].地质科学,1996,31(4):409-415.
[8]吴进民.南沙群岛地质构造特征与油气远景展望[C].南海地质研究(三),武汉:地质大学出版社,1991,24-38.
[9]Hinz K,Schlünter H U.Geology of the dangerous grounds,South China Sea,and the continental margin off southwest Palawan:Results of SONNE cruises SO-23and SO–27[J].Energy,1985,10(3/4):297-315.
[10]Hinz K,Fritsh J,Kempter E H K,Mohammad A M,et al.Thrust tectonics along the northwestern continental margin of Sabah/Borneo[J].Geologische Rundschau,1989,78(3):705-730.
[11]杨树康,魏常兴,刘海龄.东亚陆缘性质与南沙地体构造演化[C].南沙群岛及其邻近海区地质地球物理及岛礁研究论文集(一),北京:海洋出版社,1991,140-152.
[12]钟建强.南沙群岛新构造分区及其稳定性初步分析[J].东海海洋,1998,16(1):8-24.
[13]中国科学院南海海洋研究所海洋地质构造研究室.南海地质构造与陆缘扩张[M].北京:科学出版社,1988,93-96.
[14]刘海龄等.南沙地块断裂构造系统与岩石圈动力学研究[M].北京:科学出版社,2002,39-70.
[15]詹文欢,刘以宣等.南海南部活动断裂与灾害性地质初步研究[J].海洋地质与第四纪地质,1995,15(3):1-9.
[16]Taylor B,Hayes D E.Origin and history of the South China Sea[J].In:Hayes D E(ed).The tectonic and geologic evolution of Southeast Asia Seas and Islands:Part2.Am Geophys Union,Washington.Geophys Mongr,1983,27:23-56.
[17]Taylor B,Hayes D E.The tectonic evolution of the South China Sea Basin[J].In:Hayes D E(ed).The tectonic and geologic evolution of Southeast Asia Seas and Islands:Part1.Am Geophys Union,Washington.Geophys.Mongr,1980,23:89-104.
[18]Lameck K,et al.Seamount loading and stress in the ocean lithosphere[J].J Geophys Res,1980,85:6403-6418.
[19]Lameck K,et al.Seamount loading and stress in the ocean lithosphere,2,viscoelastic and elastic-viscoelastic models[J].J Geophys Res,1981,8:6961-6984.
[20]Rangin G,Bellon H,Benard F,et al.Neogene arc-continent collision in Sabah,Northern Borneo(Malaysia)[J].Tectonophysics,1990,183:305-319.
[21]Benard F,et al.Evidence of multiphase deformation in the Rajang-Crocker Range(northern Borneo)from Landsat imagery interpretation:geodynamic implications[J].Tectonophysics,1990,183:321-339.
[22]刘以宣.华南沿海区域断裂构造分析[M].北京:地震出版社,1981,14-18
[2]吴必豪,张光学,祝有海等.中国近海天然气水合物的研究进展[J].地学前缘,2003,10(1):177-189.
[3]Ingrama G M,Chisholma T J,Granta C J,et al.Deepwater North West Borneo:hydrocarbon accumulation in an active fold and thrust belt[J].Marine and Petroleum Geology,2004,21:879-887.
[4]陈忠,颜文,黄奇瑜,等.南沙海槽潜在天然气水合物的地质环境及其指标特征[J].地学前缘,2007,14(6):299-308.
[5]中国科学院南沙综合科学考察队.南沙群岛及其邻近海区第四纪沉积地质学M].武汉:湖北科学技术出版社1993,11-348.
[6]夏戡原等.南沙群岛及其邻近海区地质地球物理与油气资源[M].北京:科学出版社1996,44-210.
[7]苏达权,黄慈流,夏戡原.论南沙海槽的地壳性质[J].地质科学,1996,31(4):409-415.
[8]吴进民.南沙群岛地质构造特征与油气远景展望[C].南海地质研究(三),武汉:地质大学出版社,1991,24-38.
[9]Hinz K,Schlünter H U.Geology of the dangerous grounds,South China Sea,and the continental margin off southwest Palawan:Results of SONNE cruises SO-23and SO–27[J].Energy,1985,10(3/4):297-315.
[10]Hinz K,Fritsh J,Kempter E H K,Mohammad A M,et al.Thrust tectonics along the northwestern continental margin of Sabah/Borneo[J].Geologische Rundschau,1989,78(3):705-730.
[11]杨树康,魏常兴,刘海龄.东亚陆缘性质与南沙地体构造演化[C].南沙群岛及其邻近海区地质地球物理及岛礁研究论文集(一),北京:海洋出版社,1991,140-152.
[12]钟建强.南沙群岛新构造分区及其稳定性初步分析[J].东海海洋,1998,16(1):8-24.
[13]中国科学院南海海洋研究所海洋地质构造研究室.南海地质构造与陆缘扩张[M].北京:科学出版社,1988,93-96.
[14]刘海龄等.南沙地块断裂构造系统与岩石圈动力学研究[M].北京:科学出版社,2002,39-70.
[15]詹文欢,刘以宣等.南海南部活动断裂与灾害性地质初步研究[J].海洋地质与第四纪地质,1995,15(3):1-9.
[16]Taylor B,Hayes D E.Origin and history of the South China Sea[J].In:Hayes D E(ed).The tectonic and geologic evolution of Southeast Asia Seas and Islands:Part2.Am Geophys Union,Washington.Geophys Mongr,1983,27:23-56.
[17]Taylor B,Hayes D E.The tectonic evolution of the South China Sea Basin[J].In:Hayes D E(ed).The tectonic and geologic evolution of Southeast Asia Seas and Islands:Part1.Am Geophys Union,Washington.Geophys.Mongr,1980,23:89-104.
[18]Lameck K,et al.Seamount loading and stress in the ocean lithosphere[J].J Geophys Res,1980,85:6403-6418.
[19]Lameck K,et al.Seamount loading and stress in the ocean lithosphere,2,viscoelastic and elastic-viscoelastic models[J].J Geophys Res,1981,8:6961-6984.
[20]Rangin G,Bellon H,Benard F,et al.Neogene arc-continent collision in Sabah,Northern Borneo(Malaysia)[J].Tectonophysics,1990,183:305-319.
[21]Benard F,et al.Evidence of multiphase deformation in the Rajang-Crocker Range(northern Borneo)from Landsat imagery interpretation:geodynamic implications[J].Tectonophysics,1990,183:321-339.
[22]刘以宣.华南沿海区域断裂构造分析[M].北京:地震出版社,1981,14-18
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