新乡-商丘断裂永城段第四纪活动特征分析

张扬; 郭大伟; 张涛; 贺承广; 沈阳; 巩一帆

doi:10.11899/zzfy20220202

新乡-商丘断裂永城段第四纪活动特征分析

doi: 10.11899/zzfy20220202

张扬^{1, 2,},
郭大伟^3, ,,
张涛³,
贺承广⁴,
沈阳³,
巩一帆³

1.
中国地震局地质研究所, 北京 100029
2.
河南省地震局, 郑州 450016
3.
河南省航空物探遥感中心, 郑州 450053
4.
河南省地质调查院, 郑州 450001

基金项目: 中央公益性科研院所基本科研业务专项（IGCEA1902）；中国地震局城市活动断层探测与地震危险性评价项目；河南省地震构造探查工程

详细信息

作者简介:
张扬，男，生于1982年。高级工程师。主要从事深、浅层地震勘探方法技术研究及应用。E-mail:949510935@qq.com

通讯作者:
郭大伟，男，生于1986年。高级工程师。主要从事物探方面研究工作。E-mail:310660477@qq.com

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出版历程
- 收稿日期: 2022-03-01
- 网络出版日期: 2022-08-13
- 刊出日期: 2022-06-30

Characteristics of Quaternary Activity in the Yongcheng Segment of the Xinxiang-Shangqiu Fault

Zhang Yang^{1, 2
,},
Guo Dawei^{3
, ,},
Zhang Tao³,
He Chengguang⁴,
Shen Yang³,
Gong Yifan³

1.
Institute of Geology, China Earthquake Administration, Beijing 100029, China
2.
Henan Earthquake Agency , Zhengzhou 450016, China
3.
HenNan Aero Geophysical Survey and Remote Sensing Center, Zhengzhou 450053, China
4.
Henan Institute of Geological Survey, Zhengzhou 450001, China

摘要

摘要: 新乡-商丘断裂是河南省中北部一条规模较大、切割较深的区域性隐伏断裂，为查明新乡-商丘断裂永城段的浅部构造特征和上断点最新活动时代，在永城段开展浅层人工地震勘探工作，获得2条高分辨率、高信噪比的地震反射剖面，通过地震勘探和钻孔联合剖面探测,并结合区域地质资料对新乡-商丘断裂永城段的上断点位置及活动性进行研究，揭示本断裂上断点进入了第四系上更新统底界，推测其最新活动时代为晚更新世早、中期，是一条隐伏活动断裂。
- 浅层地震勘探 /
- 最新活动时代 /
- 钻孔联合剖面 /
- 活动断层
Abstract: The Xinxiang-Shangqiu fault is a large-scale and deep-cut regional concealed fault in the central and northern part of Henan Province. In order to find out the shallow structure features of the Yongcheng segment of the Xinxiang-Shangqiu fault and the latest active age of the upper breakpoint, two shallow artificial seismic surveys were carried out in the Yongcheng segment and two seismic reflection profiles with high- resolution and high signal-to-noise ratio were obtained, this paper studies the location and activity of the upper breakpoint of the Yongcheng segment of the Xinxiang-Shangqiu fault by combining seismic exploration, borehole survey and regional geological data, and reveals that the upper breakpoint of this fault has entered the bottom boundary of the upper Pleistocene quaternary, it is speculated that the latest active age is early and middle Late Pleistocene, and it is a buried active fault.
- Shallow seismic exploration /
- Latest active age /
- Composite drilling section /
- Active fault

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图 1 区域大地构造单元划分（据王志铄等（2018）修改）

Figure 1. Regional tectonic map（Modified from Wang et al. （2018））

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图 2 偏移地震剖面421线

Figure 2. Time migration profile of line 421

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图 3 区域地质图及地震测线位置

Figure 3. Regional geological map and location of the seismic line

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图 4 XS7线偏移时间剖面图

Figure 4. Time migration profile of line XS7

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图 5 XS7线深度剖面及解译图

Figure 5. Depth profile and explanatory chart of line XS7

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图 6 XS8线偏移时间剖面图

Figure 6. Time migration profile of line XS8

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图 7 XS8线深度剖面及解译图

Figure 7. Depth profile and interpretation chart of line XS8

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图 8 新乡-商丘断裂永城段太平庄钻孔联合地质剖面

Figure 8. Drilling joint geological profile of Taipingzhuang Borehole in the Yong Cheng segment of the Xinxiang-Shangqiu fault

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图 9 新乡-商丘断裂永城段太平镇钻孔断错量随深度的变化曲线

Figure 9. Variation curve of Taiping town fault with depth in Yongcheng segment of Shangqiu-Xinxiang fault

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图 10 新乡-商丘断裂永城段班庄钻孔联合地质剖面图

Figure 10. Joint geological profile of Banzhuang borehole in the Yongcheng segment of the Xinxiang-Shangqiu fault

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图 11 新乡-商丘断裂永城段班庄钻孔断错量随深度的变化曲线

Figure 11. Variation curve of Banzhuang fault with depth in Yongcheng segment of Shangqiu-Xinxiang fault

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表 1 太平庄钻孔联合剖面年龄样品测试结果

Table 1. Age sample test results of Taipingzhuang borehole joint profile

钻孔编号	样品埋深/m	地层/标志层	所处构造位置	测试类型	距今年龄/ka
ZKT02ESRL01	40.62	层⑤	上覆地层	ESR	186±18
ZKT02ESRL02	50.27	层④	断层下盘	ESR	359±41
ZKT02ESRL03	80.21	层②	断层下盘	ESR	308±62
ZKT02ESRL04	81.80	层①	断层下盘	ESR	350±68
ZKT02ESRL05	89.36	层①	断层下盘	ESR	335±67
ZKT03OSL05	34.57	层⑤/B7	上覆地层	OSL	75.29±5.32
ZKT07OSL3	39.18	层⑤/B7	上覆地层	OSL	84.06±8.39
ZKT07OSL4	50.57	层④	断层上盘	OSL	140.83±8.59
ZKT07ESR01	69.36	层②	断层下盘	ESR	250±38

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表 2 太平庄剖面第四纪不同时期断层垂直位移及平均滑动速率

Table 2. Fault vertical displacement and average slip rate of Taipingzhuang profile in different quaternary period

层段	沉积年龄/ka BP	各时段垂直位移/m	平均滑动速率 /mm·a⁻¹	地质年代
B6顶面之上	98.7	0	0	晚更新世早中期以来
B6顶～B6底	98.7～102.3	0.49	0.136	晚更新世早中期
B6底～B5底	102.3～127.3	0.04	0.002	晚更新世早期
B5底～B4顶	127.3～145.8	0.12	0.006	中更新世末
B4顶～B1底	145.8～369.3	3.06	0.014	中更新世中、晚期

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表 3 班庄钻孔联合剖面年龄样品测试结果表

Table 3. Age sample test results of Banzhuang borehole joint profile

钻孔编号	样品埋深/m	地层/标志层	所处构造位置	测试类型	距今年龄/ka
ZKB02ESR02	73.54	层③	上覆地层	ESR	256.00±31.00
ZKB03OSL02	40.60	层⑤	断层下盘	OSL	122.76±8.16
ZKB04OSL03	16.61	层⑦/B8	断层下盘	OSL	74.18±4.98
ZKB04OSL06	29.52	层⑥	断层下盘	OSL	121.76±6.84
ZKB04ESR05	100.89	层②	断层下盘	ESR	719.00±121.00
ZKB05OSL01	6.96	层⑨	上覆地层	OSL	1.11±0.07
ZKB06ESR01	46.81	层④	上覆地层	ESR	198.00±39.00
ZKB06ESR02	56.53	层④/B3	断层上盘	ESR	226.00±32.00
ZKB07OSL03	21.39	层⑦	断层下盘	OSL	118.60±7.39

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表 4 班庄剖面第四纪不同时期断层垂直位移及平均滑动速率

Table 4. Vertical displacement and average slip rate of faults in different quaternary periods at Banzhuang section Fault vertical displacement and average slip rate of Banzhuang profile in different Quaternary period

层段	沉积年龄/ka BP	各时段垂直位移/m	平均滑动速率 /mm·a⁻¹	地质年代
B8底面之上	75.9	0	0	晚更新世中期以来
B8底～B7顶	75.9～90.2	1.98	0.138	晚更新世早中期
B7顶～B5顶	90.2～134.0	0.07	0.002	晚更新世早期
B5顶～B1底	134.0～738.8	11.89	0.020	中更新世

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