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对1997年在黑龙江五大莲池火山群观测的7条大地电磁测深剖面资料进行重新处理,对全部测点的实、虚感应矢量和视电阻率曲线等参数的分布特征进行了详细分析,应用NLCG二维反演方法对3条近东西向剖面数据进行了反演,获得的深部电性结构结果显示:五大莲池火山群中的笔架山-老黑山-火烧山火山链上的火山规模明显大于南、北格拉球火山链和东、西焦得布火山链,该带火山活动有从南西向北东推移的规律;以笔架山-老黑山-火烧山火山链为中心在地下约几百米深度到20km左右,存在一个北北东走向、上宽下窄、北宽南窄似铆钉的状体,该块体随着深度的增加其电阻率值从上千欧姆米逐渐减小到小于1欧姆米;在深度约20km以下铆钉的主体仍然显示有向深处延伸的趋势,推测一直穿过地壳与上地幔连接;在深度4～8km左右火烧山、老黑山和笔架山东、西两侧存在低阻块体;结合S波速度、小震活动以及地热研究结果分析,推测笔架山-老黑山-火烧山火山链在地壳内随着深度增大存在不同凝固程度的岩浆系统。
The data of seven geomagnetic sounder profiles observed in 1997 from the five major Lianchi volcanic groups in Heilongjiang Province were reprocessed and the distribution characteristics of real, imaginary and vectorial resistivity curves of all the measuring points were analyzed in detail. NLCG two-dimensional inversion method for inversion of the data of the three near-east-west sections. The deep electrical structure obtained shows that volcanoes on Bijiashan-Laosheong-Huoshuoshan volcanic chain in the five great Lianchi volcanoes are obviously Greater than South and North Gela Ball volcanic chain and the East and West Jiao Debu volcanic chain, with the volcanic activity from south to west to the northeast of the law; to Beacon Hill - Old Montenegro - Huoshaoshan volcanic chain as the center in the ground about a few hundred In the depth of about 20km, there is a north-north eastward direction with a narrow width at the top and a narrow rivet like a north-south width. The resistivity of the block gradually decreases from more than one thousand ohm to less than 1 ohm meter; at a depth of about 20km below the main body of rivets still shows the trend of extending to the depth, speculation has been through the crust and the upper mantle connection; at a depth of about 4 ~ 8km Huoshaoshan, Montenegro and Beacon Shandong, both sides There is low resistance Thereof; binding S-wave velocity, small earthquakes and geothermal analysis results, presumably Beacon - laoheishan - Huoshaoshan volcanic chain there are different depth increases as degree of solidification of the magma system in the crust.