Contributors to this issue

SUN Xun-ying (孙荀英) Professor of Geophysical Department of Peking University. Graduated from Department of Mathematics & Mechanics, Peking University in 1958. She has been engaged in the teaching and research on geodynamics. Her research focus on the mathematical simulation of earthquake sequence and its migration, convection of mantle as well as plate motion by using 2-D, 3-D, 4-D and non-linear methods. Director of Mechanical Society of China. Member of Geophysical Society of Ch…     

WGRI Key Lab of Geophysical Exploration

The Key Lab of Geophysical Exploration in Northwest Geological Research Institute is a subsidiary one of the Key Lab of Geophysical Exploration, CNPC.The Lab owns the updated modern equipment, the first senior geophysical researchers and software programmers.It is focusing on research, software development, and applications related to integrated reservoir inversion,hydrocarbon detection, and imaging technology for complex geology.     

NWGRI Key Lab of Geophysical Exploration

The Key Lab of Geophysical Exploration in Northwest Geological Research Institute is a subsidiary one of the Key Lab of Geophysical Exploration, CNPC. The Lab owns the updated modern equipment, the first senior geophysical researchers and software programmers. It is focusing on research, software development, and applications related to integrated reservoir inversion, hydrocarbon detection, and imaging technology for complex geology. The     

Successful application of ahead-of-head VSP interface prediction

Ji‘ao Geophysical Exploration Company of Liaohe Petroleum Administrative Bureau successfully applied ahead-of-head VSP interface predictions in the Magu-2 and Magu-3 wells in mid October. The two wells were located in the high, north to the Magu-I well in the Majuanzi buried hill belt of the Liaohe western depression.Seismic data in this area was chaotic so that difficult to interpret. Geological problems needed to be quickly resolved during drilling.     

Determination of Focal Depths of the MS5.8 Alxa Left Banner, Inner Mongolia Earthquake Sequence

Using the double-difference earthquake location algorithm, the deterministic method (PTD method) and the CAP seismic moment tensor inversion method, the paper selects the primary waveform data of 78 earthquakes recorded by the "China Earthquake Science Array Probe Project in the Northern Part of North South Seismic Belt", the "China Earthquake Scientific Exploration Array Data Center" of Institute of Geophysics, China Earthquake Administration, and the Inner Mongolia Digital Seismic Network to calculate the focal depths of the mainshock and the seismic sequence of the M_S5.8 Alxa Left Banner earthquake in Inner Mongolia. The results show that the focal depth of the main shock is 20.6km, determined by the double-difference earthquake location method, 18.1km by the PTD method, and 19.2km by the CAP method. The focal depth of the earthquake sequence calculated by the double-difference location method is larger. The deterministic method (PTD method) and double-difference location method are the methods that fit the tectonic characteristics of the seismic source area, and the CAP method is suitable for larger earthquakes.     

Contributors to this issue

ZENG Rong-sheng (曾融生) Professor of Institute of Geophysics, China Earthquake Administration (CEA), Academician of Chinese Academy of Sciences. Graduated from Department of mathematics, Amoy University in 1946. Mainly engaged in researches on solid geophysics and earth dynamics. Members of Chinese Geophysical Society and member of Seismological Society of China.     

鄂尔多斯盆地南部的黄土塬区地震资料处理与解释,第一部分:地震资料处理

Branching river channels and the coexistence of valleys, ridges, hiils, and slopes＇as the result of long-term weathering and erosion form the unique loess topography. The Changqing Geophysical Company, working in these complex conditions, has established a suite of technologies for high-fidelity processing and fine interpretation of seismic data. This article introduces the processes involved in the data processing and interpretation and illustrates the results.     

Contributors to this issue

ZENG Rong-sheng （曾融生） Professor of Institute of Geophysics, China Earthquake Administration （CEA）, Academician of Chinese Academy of Sciences. Graduated from Department of mathematics, Amoy University in 1946. Mainly engaged in researches on solid geophysics and earth dynamics. Members of Chinese Geophysical Society and member of Seismological Society of China.     

Joint exploration of crustal structure in Fuzhou basin and its vicinities by deep seismic reflection and high-resolution refraction as well as wide-angle reflection/refraction

~~Joint exploration of crustal structure in Fuzhou basin and its vicinities by deep seismic reflection and high-resolution refraction as well as wide-angle reflection/refraction1.Ma,X.Y.,The Atlas of Lithospheric Dynamics of China(in Chinese),Beijing:Atlas Publishing Company,1989,1-68. 2.Liao,Q.L.,Wang,Z.M.,Wang,P.L.et al.,Explosion-generated earthquake study on crustal deep structure in Fuzhou-Quanzhou-Shantou region,Acta Geophysica Sinica(in Chinese),1988,31(3):270-280. 3.L…     

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