The Research Of Seismogeological Characteristics Of The Yellow River Delta

The author had collected every aspects of data and records in several periods, which including seismogeological data, hydrogeology and engineering geology data, geophysical prospection data and records, boring data pictures, satellite picture interpretion, ground temperature data and pictures, plotting, engineering earthquake data and pictures, and so on. Some field prospecting works had also been done by the author. On the basis of these data and pictures , the sedimentary characteristics of quaternary system stratum and the location and activity of occult faults and the Specific marks of realm seismicity and the characteristics of deep geophysical field and the tectonic stress field and the ground temperature field and the seismogeological disaster characteristics and the forcast and assessment on earthquake stonebrash liquefaction of the Yellow River Delta had been analysed and worked over synthetically and closely by the author too. meanwhile, the seismicity variance between The Yellow River Delta and Bohai seismic zone had also been analysed.1. The realm seismicity and the characteristics of the Yellow River Delta had been studied closely by the author.2. All those faults in the Yellow River Delta, such as Chengzikou fault, Shengbei fault, Gubei fault, Yina fault, Chengzhong fault, Wudi-Yidu fault, Gangrao-Qihe fault and so on, had been researched closely and synthetically, it was found thatthe Shengbei fault had still been an activity one since quaternary system period, thus, all those views about the inactivity of the Shengbei fault was corrected too.3. The research of quaternary system stratum had been opened to turn up sedimentary characteristics of it.4. The forcast and assessment on earthquake stonebrash liquefaction of the Yellow River Delta had been analysed and worked over synthetically and closely for the first time in the history, eventually ,it was proved that the earthquake stonebrash liquefaction was the predominant disaster in the Yellow River Delta and several regions would bring about earthquake stonebrash liquefaction disaster when the intensity of an earthquake was 6 degree.5. The seismicity variance between the Yellow River Delta and Bohai seismic zone had also been analysed for the first time to find out what was the real reason about that.6. The outcomes of the research will have a significant effect on the development of compositive seism enterprise and enacting seism developing projection in order to relieve and prevent earthquake disaster. Those will also supply a lot of rules with the propaganda of earthquake knowledge and the development of earthquake technology.