【摘要】 文章在钻井揭示的火山岩岩石学特征分析的基础上,对长岭断陷查干花地区火山岩地震反射特征进行了分析,总结了3种不同类型火山岩组合的地震识别标志。在此基础上,主要应用趋势面分析、相干体分析、属性提取等多种地球物理手段对火山口形态及分布、火山岩展布及火山机构特征进行了分析,共识别出50多个火山口和11个火山机构复合体,为火山岩勘探目标的优选评价奠定了基础。更多还原

【Abstract】 Based on the analysis of petrological characteristics of volcanic rocks in Chaganhua area of Changling fault depression,this paper studies seismic reflection features of volcanic rocks,and summarizes three types of volcanic seismic identifier for different lithologic combination.And by the application of a variety of geophysical techniques,such as tectonic trend surface analysis,coherence analysis and extraction of seismic attributes,the paper predictes crater morphology and locations,and volcanic body distribution,and divides volcanic edifice according to the comprehensive analysis.The results show that the large-scale volcanic edifice in Chaganhua area includes more than 50 craters and 11 volcanic edifice complex bodies.The prediction provides useful information for future evaluation and optimization of volcanic exploration targets in this area.更多还原