中非剪切带
外观
![](http://upload.wikimedia.org/wikipedia/commons/thumb/c/ce/Central_African_Shear_Zone.svg/300px-Central_African_Shear_Zone.svg.png)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/4/41/Central_African_Rifts.svg/300px-Central_African_Rifts.svg.png)
中非剪切带(CASZ)是一套陆内巨型右旋走滑断层体系,东北东方向从几内亚湾通过喀麦隆北部、乍得与中非共和国边界、到苏丹。[1]近年发现一系列油气裂谷盆地,截至2015年6月,探明石油储藏20.41亿吨。
简述
[编辑]北部是努比亚克拉通,南部是刚果克拉通,西部隔着Adamaoua隆起与西非裂谷系分开。[2]
定年可至640 Ma的泛非造山期。[3] 侏罗纪与白垩纪时冈瓦纳大陆破裂[1],南大西洋形成时,该断裂带右滑,导致了走滑盆地的形成。[3]并在断裂带东南侧产生拉张应力场,形成了一批转换型沉积盆地。
该区域的岩石圈明显减薄。[4]
参考文献
[编辑]- ^ 1.0 1.1 Ibrahim, Ebinger & Fairhead 1996,第79–97頁.
- ^ Schlüter & Trauth 2008,第60頁.
- ^ 3.0 3.1 3.2 Dorbath et al. 1986,第751-766頁.
- ^ Plomerova et al. 1993,第381–390頁.
- Bowen, Robert; Jux, Ulrich. Afro-Arabian geology: a kinematic view. Springer. 1987. ISBN 0-412-29700-0.
- Dorbath, C.; Dorbath, L.; Fairhead, J. D.; Stuart, G. W. A teleseismic delay time study across the Central African Shear Zone in the Adamawa region of Cameroon, West Africa. Geophysics. 1986, 86. doi:10.1111/j.1365-246x.1986.tb00658.x.
- Foulger, Gillian R.; Jurdy, Donna M. Plates, plumes, and planetary processes. Geological Society of America. 2007. ISBN 978-0-8137-2430-0.
- Ibrahim, A. E.; Ebinger, C. J.; Fairhead, J. D. Lithospheric extension northwest of the Central African Shear Zone in Sudan from potential field studies. Tectonophysics. 20 April 1996, 255 (s 1-2): 79–97. doi:10.1016/0040-1951(95)00080-1.
- Pankhurst, Robert J. West Gondwana: pre-Cenozoic correlations across the South Atlantic Region. Geological Society. 2008. ISBN 1-86239-247-1.
- Plomerova, J; Babuska, V; Dorbath, C.; Dorbath, L.; Lillie, R. J. Deep lithospheric structure across the Central African Shear Zone in Cameroon. Geophysical Journal International. 1993, 115 (2): 381–390 [2011-01-27]. ISSN 0956-540X. doi:10.1111/j.1365-246x.1993.tb01193.x. (原始内容存档于2012-09-14).
- Selley, Richard C. African basins. Elsevier. 1997. ISBN 0-444-82571-1.
- Schlüter, Thomas; Trauth, Martin H. Geological atlas of Africa: with notes on stratigraphy, tectonics, economic geology, geohazards, geosites and geoscientific education of each country. シュプリンガー・ジャパン株式会社. 2008. ISBN 3-540-76324-4.