OCEAN BOTTOM SEISMOMETER AND ONSHOREOFFSHORE SEISMIC EXPERIMENT IN NORTHEASTERN SOUTH CHINA SEA  

作　　者：QIU Xuelin ZHAO Minghui YE Chunming WANG Tankai WANG Ping ZHANG Yixiang XIA Kanyuan LEE Chaoshing 

机构地区：[1]Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology & Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, GD 510301,China Laboratory of Marginal Sea Geology Chinese Academy of Sciences, Guangzhou Institute of Geochemistry ,Chinese Academy of Sciences, Guangzhou, GD 510640, China [2]Institute of Oceanology, Chinese Academy of Sciences, Qingdao, SD 266071, China Guangdong Seismological Bureau, Guangzhou, GD 510070,China Taiwan Ocean University, Keelung 20224, Taiwan Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology & Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, GD 510301,China Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology & Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, GD 510301,China Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology & Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, GD 510301,China Taiwan Ocean University, Keelung 20224, Taiwan

出　　处：《Geotectonica et Metallogenia》2004年第1期28-35,共8页大地构造与成矿学（英文版）

基　　金：Supported by SCSIO(LYQY200302);the Chinese Ministry of Science and Technology(G2000046701);the Guangdong Department of Science and Technology(2002C32604);the Guangdong Natural Science Foundation(021557);the National Natural Science Foundation of China(4000161958).

摘　　要：Three-component Ocean Bottom Seismometers, portable land stations and marine air gun seismic sources were used to carry out an onshore-offshore deep seismic profile in northeastern South China Sea. This profile, orientated in NNW-SSE, was as long as 500 km and perpendicular to the strike of regional tectonics. The offshore data were processed in Taiwan Ocean University using a number of available software and the onshore data were analyzed in South China Sea Institute of Oceanology by new-written programs and public software. Preliminary results show that the seismic data are in good quality and contain rich information of deep structure. Seismic phases, e.g. Pg, PmP and Pn, are identified in the offset range 5～220 kin, which will provide an important dataset for the deep crustal structure and oil-gas basin evolution studies of this region.Three-component Ocean Bottom Seismometers, portable land stations and marine air gun seismic sources were used to carry out an onshore-offshore deep seismic profile in northeastern South China Sea. This profile, orientated in NNW-SSE, was as long as 500 km and perpendicular to the strike of regional tectonics. The offshore data were processed in Taiwan Ocean University using a number of available software and the onshore data were analyzed in South China Sea Institute of Oceanology by new-written programs and public software. Preliminary results show that the seismic data are in good quality and contain rich information of deep structure. Seismic phases, e.g. Pg, PmP and Pn, are identified in the offset range 5～220 km, which will provide an important dataset for the deep crustal structure and oil-gas basin evolution studies of this region.

关 键 词：NORTHEASTERN South China Sea ocean bottom SEISMOMETER (OBS) onshore-offshore SEISMIC EXPERIMENT deep CRUSTAL structure 

分 类 号：P315.2[天文地球—地震学]