色尔腾山山前断裂浅层地震勘探和钻探的新证据

来源：大地测量与地球动力学杂志2025年第2期北京时间：

作者：杨杰, 贺为民, 秦晶晶, 宋晓鹏, 刘庆

单位：1 中国地震局地球物理勘探中心, 郑州市文化路75号, 450002],figList:[{captionCn:色尔腾山山前断裂分布图及浅层地震勘探、钻孔联合地质剖面布置图,magId:9cde1925-6a95-4364-b493-1a63ce4681ae,labelCn:图1,pptUrl:20250208/ddclydqdlx-45-2-144-1.jpg.ppt,labelEn:Fig. 1,figUrl:20250208/ddclydqdlx-45-2-144-1.jpg,titleEn:Fig. 1 Location of Serteng mountain piedmont fault and the distribution of the shallow seismic exploration and the composite drilling section,titleCn:图1 色尔腾山山前断裂分布图及浅层地震勘探、钻孔联合地质剖面布置图,id:Fig1,captionEn:Location of Serteng mountain piedmont fault and the distribution of the shallow seismic exploration and the composite drilling section,thumbnailUrl:20250208/thumbnail/ddclydqdlx-45-2-144-1.jpg},{captionCn:L1浅层地震勘探测线,magId:c1f24e94-d6c3-4d5e-8b2f-6766f754d7a9,labelCn:图2,pptUrl:20250208/ddclydqdlx-45-2-144-2.jpg.ppt,labelEn:Fig. 2,figUrl:20250208/ddclydqdlx-45-2-144-2.jpg,titleEn:Fig. 2 L1 shallow seismic exploration line,titleCn:图2 L1浅层地震勘探测线,id:Fig2,captionEn:L1 shallow seismic exploration line,thumbnailUrl:20250208/thumbnail/ddclydqdlx-45-2-144-2.jpg},{captionCn:大后店钻孔联合地质剖面在L1浅层地震勘探时间剖面上的布置,magId:4502fd4c-f4c3-45a8-9fe4-841dc59fe6d9,labelCn:图3,pptUrl:20250208/ddclydqdlx-45-2-144-3.jpg.ppt,labelEn:Fig. 3,figUrl:20250208/ddclydqdlx-45-2-144-3.jpg,titleEn:Fig. 3 Borehole locations of the Dahoudian composite drilling section for L1 shallow seismic exploration time profile,titleCn:图3 大后店钻孔联合地质剖面在L1浅层地震勘探时间剖面上的布置,id:Fig3,captionEn:Borehole locations of the Dahoudian composite drilling section for L1 shallow seismic exploration time profile,thumbnailUrl:20250208/thumbnail/ddclydqdlx-45-2-144-3.jpg},{captionCn:大后店钻孔联合地质剖面,magId:5c52ba6a-7a7a-467a-84d0-39f14deb3622,labelCn:图4,pptUrl:20250208/ddclydqdlx-45-2-144-4.jpg.ppt,labelEn:Fig. 4,figUrl:20250208/ddclydqdlx-45-2-144-4.jpg,titleEn:Fig. 4 The composite drilling geological section at Dahoudian,titleCn:图4 大后店钻孔联合地质剖面,id:Fig4,captionEn:The composite drilling geological section at Dahoudian,thumbnailUrl:20250208/thumbnail/ddclydqdlx-45-2-144-4.jpg},{captionCn:断层露头照片及解译,magId:f3f1d778-8cb3-440a-b3c4-2cb0fee29228,labelCn:图5,pptUrl:20250208/ddclydqdlx-45-2-144-5.jpg.ppt,labelEn:Fig. 5,figUrl:20250208/ddclydqdlx-45-2-144-5.jpg,titleEn:Fig. 5 Photograph and interpretation of fault outcrop,titleCn:图5 断层露头照片及解译,id:Fig5,captionEn:Photograph and interpretation of fault outcrop,thumbnailUrl:20250208/thumbnail/ddclydqdlx-45-2-144-5.jpg},{captionCn:色尔腾山山前断裂在近地表结构示意图,magId:c0c09075-10cf-4b9c-84c8-10b65344645b,labelCn:图6,pptUrl:20250208/ddclydqdlx-45-2-144-6.jpg.ppt,labelEn:Fig. 6,figUrl:20250208/ddclydqdlx-45-2-144-6.jpg,titleEn:Fig. 6 Schematic diagram of the near-surface structure of the Serteng mountain piedmont fault,titleCn:图6 色尔腾山山前断裂在近地表结构示意图,id:Fig6,captionEn:Schematic diagram of the near-surface structure of the Serteng mountain piedmont fault,thumbnailUrl:20250208/thumbnail/ddclydqdlx-45-2-144-6.jpg},{captionCn:色尔腾山山前断裂构造演化模式示意图,magId:600f1aa0-b853-45f8-9306-85855f30120d,labelCn:图7,pptUrl:20250208/ddclydqdlx-45-2-144-7.jpg.ppt,labelEn:Fig. 7,figUrl:20250208/ddclydqdlx-45-2-144-7.jpg,titleEn:Fig. 7 Tectonic evolution pattern of the Serteng mountain piedmont fault,titleCn:图7 色尔腾山山前断裂构造演化模式示意图,id:Fig7,captionEn:Tectonic evolution pattern of the Serteng mountain piedmont fault,thumbnailUrl:20250208/thumbnail/ddclydqdlx-45-2-144-7.jpg}

摘要：横跨色尔腾山山前断裂布设一条长10.77 km的浅层地震勘探测线L1, 结果发现, 色尔腾山山前断裂在剖面上清晰可见, 其主断裂在上部存在分叉, 由断层FP1.1和FP1组成, 均为正断层, 视倾向南; 结合地质地貌调查认为, FP1.1断层的最新活动时代为全新世。针对色尔腾山山前断裂的FP1断层开展钻孔联合地质剖面探测, 划分出Fa、Fb两个断层, 结合光释光测年结果发现, 断层Fa和Fb为全新世断层, 其最新活动时代晚于2.5±0.6 ka BP。色尔腾山山前断裂在近地表呈叉状结构, 是该断裂在晚第四纪具有多次活动的反映。

关键词：色尔腾山山前断裂,活动断层,浅层地震勘探,钻孔联合地质剖面