川南綦江-赤水地区晚燕山期以来差异构造变形Tectonic Deformation in Qijiang-Chishui Area of South Sichuan Since Late Yanshanian
周立夫;陈孔全;唐永;汤济广;
摘要(Abstract):
受到燕山晚期先后两期不同方向的挤压应力:大娄山SN向水平推挤作用、江南雪峰造山带SE-NW向的递进变形作用和喜山期整体的剧烈隆升作用,川南綦江-赤水地区晚白垩世以来发生显著差异构造变形。根据在多边界的条件下形成的多构造体系的联合与叠加现象,分析了本区构造演化时序。通过对本区典型地震剖面的的解释得出差异构造变形方式为滑脱褶皱冲断作用造成的收缩变形,并运用平衡剖面演化分析,计算了水平方向上的伸缩率;由点到线及面,运用声波时差法、磷灰石裂变径迹法、地震剖面趋势法和地质对比法恢复了各地区晚白垩世以来的剥蚀量,以此分析了研究区垂直方向上的隆升幅度。最后综合上述2个方向的构造形变量分级评价了各个构造单元的差异构造变形强度。
关键词(KeyWords): 差异构造变形;平衡剖面;剥蚀量恢复
基金项目(Foundation): 中国地质大学(武汉)构造与油气资源教育部重点实验室开放研究基金项目(TPR-2015-01)
作者(Author): 周立夫;陈孔全;唐永;汤济广;
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DOI:
参考文献(References):
- [1]刘树根,孙玮,李智武,等.四川盆地晚白垩世以来的构造隆升作用与天然气成藏[J].天然气地球科学,2008,19(3):293-300.
- [2]Richardson N J,Densmore A L,Seward D,et al.Extraordinary denudation in the Sichuan Basin:Insights from low temperature thermochronology adjacent to the eastern margin of the Tibetan Plateau[J].Journal of Geophysical Research,2008,113:1-23.
- [3]Lo Xiaoming,Shan Yehua.Diverse exhumation of the Mesozoic tectonic belt within the Yangtze Plate,China,determined by apatite fission-track thermochronology[J].Geosciences Journal,2011,15(4):349-357.
- [4]Shen C B,Mei L F,Xu S H.Fission trakc dating of Mesozoic sandstone and its tectonic significance in the Eastern Sichuan basin,China[J].Radiation Measurements,2009,44:945-949.
- [5]邓宾,刘树根,王国芝,等.四川盆地南部地区新生代隆升剥露研究:低温热年代学证据[J].地球物理学报,2013,56(6):1958-1973.
- [6]马文辛,刘树根,黄文明,等.四川盆地东南缘林滩场构造二叠系沥青的地球化学特征及意义[J].天然气地球科学,2011,22(6):1064-1075.
- [7]邓宾.四川盆地中-新生代盆-山结构与油气分布[D].成都:成都理工大学,2013.
- [8]梅廉夫,刘昭茜,汤济广,等.湘鄂西-川东中生代陆内递进扩展变形:来自裂变径迹和平衡剖面的证据[J].地球科学:中国地质大学学报,2010,35(2):161-174.
- [9]Ghosh S K,Ramberg H.Buckling experiment on intersecting fold patterns[J].Tectonophysics,1968,5(2):89-105.
- [10]Jose L.Superposed buckle folding in the eastern Iberian Chain,Spain[J].Journal of Structural Geology,2004,26:1447-1464.
- [11]金宠.雪峰陆内构造系统逆冲推滑体系[D].青岛:中国海洋大学,2010.
- [12]胡召齐,朱光,刘国生,等.川东“侏罗山式”褶皱带形成时代:不整合面的证据[J].地质论评,2009,55(1):32-42.
- [13]何治亮,汪新伟,李双建,等.中上扬子地区燕山运动及其对油气保存的影响[J].石油实验地质,2011,33(1):1-11.
- [14]颜丹平,金哲龙,张维宸,等.川渝湘鄂薄皮构造带多层拆离滑脱系的岩石力学性质及其对构造变形样式的控制[J].地质通报,2008,27(10):1687-1697.
- [15]Yan D P,Zhang B,Zhou M F,et al.Constrains on the depth,geometry and kinematics of blind detachment faults provided by fault-propagation folds:An example from the Mesozoic fold belt of South China[J].Journal of Structural Geology,2009,31:150-160.
- [16]Dahlstrom C D A.Balanced cross sections[J].Canadian Journal of Earth Science,1969,6(4):743-757.
- [17]Elliott D.The construction of balanced cross-sections[J].Journal of Structrural Geology,1983,5:101-103.
- [18]Williams G,Vann I.The geometry of listric normal faults and deformation in their hangingwalls[J].Journal of Structrural Geology,1987,9:789-795.
- [19]王玮,周祖翼,郭彤楼,等.四川盆地古地温梯度和中-新生代构造热历史[J].同济大学学报:自然科学版,2011,39(4):606-613.
- [20]Athy L F.Density,porosity and compaction of sedimentary rocks[J].AAPG Bulletin,1930,14:1-24.
- [21]Magara K.Thickness of removed sedimentary rocks,paleoporepressure,and paleotemperature,southwestern part of Western Canada Basin[J].AAPG Bulletin,1976,60:554-566.
- [22]高金尉.四川盆地西南地区构造几何学与运动学特征及其对青藏高原东南缘动力学背景的指示[D].北京:中国地质大学,2012.