The Seismic Response of the Volcanic Edifice-Facies Zone of Yingcheng Formation in the Songliao Basin

详细信息   

• 责任者：Feng Zihui (School of Earth and Space Sciences ; Peking University ; Beijing 100871 ; China) ; Zhu Yingkang
• 刊名：Chinese Journal of Geophysics
• 出版年：2011
• 卷期：54(2)
• 关键词：火山机体 ; volcanic edifice ; 地震勘探 ; seismic exploration ; 松辽平原 ; Songliao Plain
• 页码：p.556-562
• 图表：4 illus., 28 refs.
• 分类号：1600
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

摘要

Based on drilling and 3D seismic data, combined with the regional tectonics, this paper establishes the seismic response model and identifies the spatial distribution of the volcanic edifice-facies zone by the technology of coherence and formation slice attribution. There are four types of volcanic facies seismic response in the research area. The first type is multi-facies supoimposed zone of dome crater which shows the characteristics of messy reflective band and bottom-up radial shape. The second type is near-source superimposed eruption and overflow facies that has the reflection characteristics of intermittent layering, moderate-high amplitude, and low frequency. The third type is distal eruption facies that has the reflection characteristics of continuously layered wedge and strong amplitude. The fourth type is distal volcanic sedimentary facies that has the reflection characteristics of plate shape, sub-parallel reflection configuration, strong energy, continuous phase axis.