【摘要】 利用三分量海底地震仪、陆上便携式地震仪和海上气枪震源在南海东北部首次进行了海陆联合的深地震探测,测线呈北北西-南南东方向,垂直于区域构造走向,总长达500km,所获得的数据质量好,深部信息丰富,可分辨出Pg、Pn、PmP等地震相,为南海东北部深部地壳结构及油气盆地形成演化的研究提供了重要的基础数据。更多还原

【Abstract】 We use the 3 component Ocean Bottom Seismometers, portable land stations and marine air gun seismic source to carry out an onshore offshore deep seismic profile in northeast South China Sea. This profile, orientated in NNW SSE, is 500 km long and perpendicular to the strike of regional tectonics. The seismic data obtained are in good quality and contain rich information of deep structure. Seismic phases like Pg, PmP and Pn are identified, which will provide an important data set for the deep crustal structure and oil gas basin evolution studies of this region.更多还原