火成岩地表复杂区地震资料的构造解释及应用

Tectonic interpretation of the seismic data from the volcanic terraces in the Maichen depression

1. College of Geo-sciences and Information, China University of Petroleum, Dongying 257061, Shandong, China;
2. Nanjing School of Engineering, Nanjing 211135, Jiangsu, China

摘要: 北部湾盆地的迈陈凹陷东部地区浅层广泛分布第四纪火成岩,地表条件复杂,发育多期断裂系统,构造破碎,导致地震资料品质较差,构造解释及圈闭描述难度大。笔者在开展解释处理一体化以提高地震资料品质的同时,建立区域构造地质模型,综合运用多种解释技术手段,进行构造解释研究。解决了速度及多期活动小断层的识别及断层组合的解释等问题,提高了圈闭的可信度和构造解释方案的准确性。
- 迈陈凹陷 /
- 构造地质模式 /
- 地震 /
- 构造解释
Abstract: The Quaternary volcanic rocks occur on a wide range of scales in the eastern part of the Maichen depression,Beibu Gulf Basin,where the subaerial features are composed of marine,continental and beach environments.The detailed studies are made in the present paper,including the tectonic interpretation based on several tectonic models,delineation of the target strata and velocity analysis,and recognition of fault systems and fault associations in seismic profiles.These results of research may provide the reliability of the structural traps and accuracy of tectonic interpretation and lay good foundation for further exploration.
- Maichen depression /
- tectonic model /
- seismic data /
- tectonic interpretation