地球深部探测的先锋——深地震反射方法的发展与应用

Precursor of detecting the interior earth: Development and applications of deep seismic reflection

介绍了深反射地震技术的发展与应用状况。深反射地震技术已被国际地学界公认为是研究大陆基底、解决深部地质问题和探测岩石圈精细结构的有效技术手段。自美国于20世纪70年代中期首先利用该技术研究地壳结构深部构造问题并取得良好效果以来,世界各国相继开展了深地震反射研究计划,获得了岩石圈形成与演化、地球深部构造等方面的重要信息,为一些长期争论不休的深部地质构造问题提供了较可靠的地震学依据。由于深反射地震方法具有探测深度大、分辨率高和准确可靠等特点,在今后一段时期,深反射地震技术仍是大陆动力学研究和深部地壳细结构研究的主要手段。

Deep seismic reflection has been accepted as an effective technology for studying continental basement, solving deep geological problems and probing fine structure of lithosphere. In the mid 1970s the technology was successfully applied to study crustal structure and deep structure in USA. Since then many other countries have carried out deep seismic reflection researches. Lots of important information about the form and evolution of lithosphere and deep structure have been obtained. This provides relatively convincing seismic evidences for some controversial deep geologic structure problems. Deep seismic reflection has advantages such as deeper probing depth and higher resolution, it will be the main method in studying of continental dynamics and fine curstal structure.