方良好，郑颖平，疏鹏, 等. 合肥盆地东缘北西向断裂活动性[J]. 华北地震科学，2020, 38（3）：6-12. doi:10.3969/j.issn.1003−1375. 2020.03.002.
引用本文: 方良好，郑颖平，疏鹏, 等. 合肥盆地东缘北西向断裂活动性[J]. 华北地震科学，2020, 38（3）：6-12. doi:10.3969/j.issn.1003−1375. 2020.03.002.
shu
FANG Lianghao，ZHENG Yingping，SHU Peng, et al. Activity of Northwestward Faults in Segment of Hefei Basin[J]. North China Earthqauke Sciences，2020, 38（3）：6-12. doi:10.3969/j.issn.1003−1375.2020.03.002.
Citation: FANG Lianghao，ZHENG Yingping，SHU Peng, et al. Activity of Northwestward Faults in Segment of Hefei Basin[J]. North China Earthqauke Sciences，2020, 38（3）：6-12. doi:10.3969/j.issn.1003−1375.2020.03.002.
shu

合肥盆地东缘北西向断裂活动性

Activity of Northwestward Faults in Segment of Hefei Basin

    摘要
  • 摘要: 对合肥盆地东缘基岩区的NW向断层剖面进行了观察和年代样品测试，并跨其中1条断层布设了浅层地震勘探测线；结合本区第四系厚度和沉积特征，对浅震测线时间剖面进行了地质解释。根据调查所揭示的剖面特征、断层泥ESR测年数据、浅层地震勘探结果及本区的中强地震活动构造背景，认为这组NW向断裂中更新世有过活动；合肥盆地东缘NW向横向断裂的第四纪活动情况与断裂所在地区的新构造环境有关，尽管断层泥测年结果表明断裂在中更新世有过活动，但其活动强度不大。

     

    Abstract: There are a series of NW transverse faults along the eastern margin of the Hefei basin. We analyzed and sampled the NW fault profiles in the bedrock outcropping area and constructed shallow seismic lines across one of the faults. Based on the Quaternary thickness and sedimentary characteristics of this area, geological interpretation of shallow seismic profile is made. The profile characteristics and the ESR dating of fault gouges indicate that the NW faults have been active in the Middle Pleistocene. The Quaternary activity of the NW transverse faults in the eastern margin of the Hefei basin are related to the neotectonic environment in the area. Although the results of gouge dating show that the faults have been active in the Middle Pleistocene, theirs activity are not strong.

     

    • HTML全文
    • 参考文献(27)
    • 相关文章
    • 施引文献
  • 资源附件(0)

/

返回文章
返回